001720
說明：720是美國內部城市科羅拉多州之間的長途區號，從美國以外撥打科羅拉多州電話需要加上美國的國際區號1，也就是美國科羅拉多州的國際城市區號為001720或者寫為001-720、0010720、+1-720、+1+720、+1720、00-1-720、00 1 720。
以720開頭的號碼前綴列表
| 號碼前綴 | 固話/手機 | 主要城市 | 運營商 |
| (720) 200- | 固話 | Denver | Qwest Corporation |
| (720) 201- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 202- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 203- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 204- | 固話 | Longmont | AT&T Local |
| (720) 205- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 206- | 固話 | Denver | Xo Colorado |
| (720) 207- | 固話 | Englewood | Xo Colorado |
| (720) 208- | 固話 | Denver | Xo Colorado |
| (720) 209- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 210- | 固話 | Denver | Xo Colorado |
| (720) 212- | 固話 | Denver | Xo Colorado |
| (720) 213- | 固話 | Denver | Mcleodusa Telecommunications Services- Co |
| (720) 214- | 固話 | Denver | Mcleodusa Telecommunications Services- Co |
| (720) 215- | 固話 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 216- | 固話 | Aurora | Teleport Communications America |
| (720) 217- | 手機 | Denver | T-mobile Usa |
| (720) 218- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 219- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 220- | 手機 | Denver | T-mobile Usa |
| (720) 221- | 固話 | Denver | Xo Colorado |
| (720) 222- | 固話 | Englewood | Xo Colorado |
| (720) 223- | 固話 | Brighton | Xo Colorado |
| (720) 224- | 固話 | Denver | Xo Colorado |
| (720) 225- | 固話 | Denver | Xo Colorado |
| (720) 226- | 固話 | Denver | Xo Colorado |
| (720) 227- | 固話 | Denver | Xo Colorado |
| (720) 228- | 固話 | Denver | Xo Colorado |
| (720) 229- | 固話 | Denver | Xo Colorado |
| (720) 230- | 固話 | Brighton | Xo Colorado |
| (720) 231- | 手機 | Denver | T-mobile Usa |
| (720) 232- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 233- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 234- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 235- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 236- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 237- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 238- | 固話 | Denver | T-mobile Usa |
| (720) 239- | 固話 | Denver | AT&T Local |
| (720) 240- | 固話 | Denver | Xo Colorado |
| (720) 241- | 固話 | Denver | Xo Colorado |
| (720) 242- | 固話 | Denver | Qwest Corporation |
| (720) 243- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 244- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 245- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 246- | 固話 | Englewood | Xo Colorado |
| (720) 247- | 固話 | Brighton | Xo Colorado |
| (720) 248- | 固話 | Denver | Cbeyond Communications |
| (720) 249- | 固話 | Denver | Xo Colorado |
| (720) 250- | 固話 | Denver | Xo Colorado |
| (720) 251- | 固話 | Aurora | Level 3 Communications |
| (720) 252- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 253- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 254- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 255- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 256- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 257- | 固話 | Denver | Xo Colorado |
| (720) 258- | 固話 | Denver | Teleport Communications America |
| (720) 259- | 固話 | Denver | Level 3 Communications |
| (720) 260- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 261- | 手機 | Denver | T-mobile Usa |
| (720) 262- | 固話 | Aurora | Icg Telecom Group |
| (720) 263- | 固話 | Brighton | Level 3 Communications |
| (720) 264- | 固話 | Denver | Qwest Corporation |
| (720) 265- | 固話 | Brighton | Xo Colorado |
| (720) 266- | 固話 | Denver | Level 3 Communications |
| (720) 267- | 固話 | Denver | Qwest Corporation |
| (720) 268- | 固話 | Denver | Qwest Corporation |
| (720) 269- | 固話 | Denver | Teleport Communications America |
| (720) 270- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 271- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 272- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 273- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 274- | 固話 | Denver | Mcleodusa Telecommunications Services- Co |
| (720) 275- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 276- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 277- | 固話 | Aurora | Level 3 Communications |
| (720) 278- | 固話 | Aurora | Tw Telecom Of Colorado LLC |
| (720) 279- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 280- | 手機 | Denver | T-mobile Usa |
| (720) 281- | 手機 | Aurora | Cellco Partnership DBA Verizon Wireless |
| (720) 282- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 283- | 固話 | Denver | Qwest Corporation |
| (720) 284- | 固話 | Denver | Xo Colorado |
| (720) 285- | 固話 | Englewood | Xo Colorado |
| (720) 286- | 固話 | Denver | Teleport Communications America |
| (720) 287- | 固話 | Denver | Comcast Phone Of Colorado |
| (720) 288- | 固話 | Aurora | Bandwidth.com Clec |
| (720) 289- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 290- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 291- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 292- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 293- | 固話 | Denver | Xo Colorado |
| (720) 294- | 固話 | Denver | Xo Colorado |
| (720) 295- | 固話 | Denver | Bandwidth.com Clec |
| (720) 296- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 297- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 298- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 299- | 手機 | Denver | T-mobile Usa |
| (720) 300- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 301- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 302- | 固話 | Denver | Teleport Communications America |
| (720) 304- | 固話 | Denver | Qwest Corporation |
| (720) 305- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 306- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 307- | 固話 | Lyons | AT&T Local |
| (720) 308- | 固話 | Denver | New Cingular Wireless PCS |
| (720) 309- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 310- | 固話 | Lyons | Teleport Communications America |
| (720) 312- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 313- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 314- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 315- | 固話 | Denver | 360networks (usa) Inc. |
| (720) 316- | 固話 | Denver | Bandwidth.com Clec |
| (720) 317- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 318- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 319- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 320- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 321- | 固話 | Denver | Qwest Corporation |
| (720) 322- | 固話 | Denver | Qwest Corporation |
| (720) 323- | 手機 | Denver | T-mobile Usa |
| (720) 324- | 固話 | Aurora | Comcast Phone Of Colorado |
| (720) 325- | 手機 | Aurora | T-mobile Usa |
| (720) 326- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 327- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 328- | 固話 | Denver | Comcast Phone Of Colorado |
| (720) 329- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 330- | 固話 | Denver | Icg Telecom Group |
| (720) 331- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 332- | 固話 | Denver | Mcimetro Access Transmission Services LLC |
| (720) 333- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 334- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 335- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 336- | 固話 | Keenesburg | Bandwidth.com Clec |
| (720) 337- | 固話 | Denver | Qwest Corporation |
| (720) 338- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 339- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 340- | 手機 | Longmont | Cellco Partnership DBA Verizon Wireless |
| (720) 341- | 手機 | Denver | T-mobile Usa |
| (720) 342- | 固話 | Denver | AT&T Local |
| (720) 343- | 固話 | Aurora | Level 3 Communications |
| (720) 344- | 固話 | Littleton | Qwest Corporation |
| (720) 345- | 固話 | Denver | Zippytech Incorporated |
| (720) 346- | 固話 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 347- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 348- | 固話 | Littleton | Qwest Corporation |
| (720) 349- | 固話 | Denver | AT&T Local |
| (720) 350- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 351- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 352- | 手機 | Denver | T-mobile Usa |
| (720) 353- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 354- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 355- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 356- | 固話 | Denver | AT&T Local |
| (720) 357- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 358- | 固話 | Hudson | Mcimetro Access Transmission Services LLC |
| (720) 359- | 固話 | Denver | Qwest Corporation |
| (720) 360- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 361- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 362- | 固話 | Denver | Qwest Corporation |
| (720) 363- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 364- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 365- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 366- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 367- | 固話 | Englewood | Xo Colorado |
| (720) 368- | 固話 | Englewood | Xo Colorado |
| (720) 369- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 370- | 固話 | Denver | Bandwidth.com Clec |
| (720) 371- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 372- | 手機 | Aurora | T-mobile Usa |
| (720) 373- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 374- | 固話 | Denver | Qwest Corporation |
| (720) 375- | 手機 | Denver | Commnet Wireless |
| (720) 376- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 377- | 固話 | Denver | Xo Colorado |
| (720) 378- | 手機 | Longmont | New Cingular Wireless PCS |
| (720) 379- | 固話 | Denver | Icg Telecom Group |
| (720) 380- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 381- | 固話 | Denver | Comcast Phone Of Colorado |
| (720) 382- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 383- | 手機 | Fort Lupton | Cellco Partnership DBA Verizon Wireless |
| (720) 384- | 固話 | Denver | Xo Colorado |
| (720) 385- | 固話 | Denver | Xo Colorado |
| (720) 386- | 固話 | Idaho Springs | Bandwidth.com Clec |
| (720) 387- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 388- | 手機 | Aurora | Cellco Partnership DBA Verizon Wireless |
| (720) 389- | 固話 | Denver | Xo Colorado |
| (720) 390- | 固話 | Denver | Iloka DBA Newcloud Networks |
| (720) 391- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 392- | 固話 | Deer Trail | Ymax Communications Corp. |
| (720) 393- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 394- | 手機 | Denver | T-mobile Usa |
| (720) 395- | 固話 | Denver | AT&T Local |
| (720) 396- | 固話 | Denver | AT&T Local |
| (720) 397- | 固話 | Denver | AT&T Local |
| (720) 398- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 399- | 固話 | Denver | Level 3 Communications |
| (720) 400- | 手機 | Englewood | T-mobile Usa |
| (720) 401- | 手機 | Denver | T-mobile Usa |
| (720) 402- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 403- | 固話 | Denver | Peerless Network Of Colorado |
| (720) 404- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 405- | 固話 | Denver | Hypercube Telecom |
| (720) 406- | 固話 | Denver | Qwest Corporation |
| (720) 407- | 固話 | Denver | Cbeyond Communications |
| (720) 408- | 固話 | Brighton | Bandwidth.com Clec |
| (720) 409- | 固話 | Denver | Mcleodusa Telecommunications Services- Co |
| (720) 410- | Unknown | Comcast Phone Of Colorado | |
| (720) 412- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 413- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 414- | 固話 | Lyons | Level 3 Communications |
| (720) 415- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 416- | Unknown | Metro PCS | |
| (720) 418- | 固話 | Denver | Mcimetro Access Transmission Services LLC |
| (720) 420- | 固話 | Denver | Level 3 Communications |
| (720) 421- | 手機 | Denver | T-mobile Usa |
| (720) 422- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 423- | 固話 | Denver | Qwest Corporation |
| (720) 424- | 固話 | Denver | Qwest Corporation |
| (720) 425- | 固話 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 426- | 固話 | Denver | Qwest Corporation |
| (720) 427- | 手機 | Aurora | T-mobile Usa |
| (720) 428- | 固話 | Denver | Broadvox-clec |
| (720) 429- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 430- | 固話 | Denver | AT&T Local |
| (720) 431- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 432- | 固話 | Denver | Bandwidth.com Clec |
| (720) 433- | 固話 | Denver | Mcleodusa Telecommunications Services- Co |
| (720) 434- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 435- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 436- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 437- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 438- | 固話 | Longmont | 360networks (usa) Inc. |
| (720) 439- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 440- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 441- | 固話 | Denver | Bandwidth.com Clec |
| (720) 442- | 固話 | Longmont | Bandwidth.com Clec |
| (720) 443- | 固話 | Denver | Bandwidth.com Clec |
| (720) 444- | 固話 | Denver | Qwest Corporation |
| (720) 445- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 446- | 固話 | Denver | Xo Colorado |
| (720) 447- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 448- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 449- | 固話 | Denver | Xo Colorado |
| (720) 450- | 固話 | Denver | Mcimetro Access Transmission Services LLC |
| (720) 451- | 手機 | Denver | T-mobile Usa |
| (720) 452- | 固話 | Denver | Peerless Network Of Colorado |
| (720) 453- | Unknown | Teleport Communications America | |
| (720) 454- | 固話 | Denver | Mcleodusa Telecommunications Services- Co |
| (720) 455- | 固話 | Denver | Qwest Corporation |
| (720) 456- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 457- | 固話 | Denver | Level 3 Communications |
| (720) 458- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 459- | 固話 | Denver | Onvoy |
| (720) 460- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 463- | 固話 | Sedalia | Onvoy |
| (720) 464- | 固話 | Denver | Bandwidth.com Clec |
| (720) 465- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 466- | 手機 | Fort Lupton | New Cingular Wireless PCS |
| (720) 467- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 468- | 固話 | Denver | Level 3 Communications |
| (720) 469- | 固話 | Denver | New Cingular Wireless PCS |
| (720) 470- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 471- | Unknown | Cellco Partnership DBA Verizon Wireless | |
| (720) 472- | 固話 | Denver | Teleport Communications America |
| (720) 473- | 固話 | Denver | Cbeyond Communications |
| (720) 474- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 475- | 固話 | Denver | Teleport Communications America |
| (720) 476- | Unknown | New Cingular Wireless PCS | |
| (720) 477- | 固話 | Henderson | 360networks (usa) Inc. |
| (720) 478- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 479- | 固話 | Denver | Teleport Communications America |
| (720) 480- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 482- | 固話 | Denver | Qwest Corporation |
| (720) 484- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 485- | Unknown | Comcast Phone Of Colorado | |
| (720) 488- | 固話 | Denver | Qwest Corporation |
| (720) 489- | 固話 | Denver | Qwest Corporation |
| (720) 490- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 491- | 手機 | Longmont | New Cingular Wireless PCS |
| (720) 493- | 固話 | Denver | Qwest Corporation |
| (720) 494- | 固話 | Longmont | Qwest Corporation |
| (720) 495- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 496- | 固話 | Denver | Level 3 Communications |
| (720) 497- | 固話 | Golden | Qwest Corporation |
| (720) 498- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 499- | 手機 | Aurora | T-mobile Usa |
| (720) 502- | 固話 | Denver | Comcast Phone Of Colorado |
| (720) 504- | 固話 | Denver | Bandwidth.com Clec |
| (720) 505- | 手機 | Aurora | Cellco Partnership DBA Verizon Wireless |
| (720) 506- | 固話 | Denver | Level 3 Communications |
| (720) 508- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 509- | 固話 | Denver | Xo Colorado |
| (720) 514- | 固話 | Denver | Teleport Communications America |
| (720) 515- | 固話 | Denver | Bandwidth.com Clec |
| (720) 518- | Unknown | Eschelon Telecom Of Colorado | |
| (720) 519- | 固話 | Denver | Teleport Communications America |
| (720) 521- | 手機 | Denver | American Messaging (am) |
| (720) 522- | 固話 | Englewood | Xo Colorado |
| (720) 523- | 固話 | Brighton | Qwest Corporation |
| (720) 524- | 固話 | Denver | Qwest Corporation |
| (720) 525- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 526- | Unknown | New Cingular Wireless PCS | |
| (720) 528- | 固話 | Denver | Qwest Corporation |
| (720) 529- | 固話 | Denver | Qwest Corporation |
| (720) 530- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 532- | 固話 | Aurora | Teleport Communications America |
| (720) 533- | 固話 | Denver | Teleport Communications America |
| (720) 535- | 固話 | Denver | Teleport Communications America |
| (720) 536- | 固話 | Denver | Qwest Corporation |
| (720) 538- | 手機 | Fort Lupton | Cellco Partnership DBA Verizon Wireless |
| (720) 539- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 540- | 固話 | Denver | Qwest Corporation |
| (720) 541- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 542- | 固話 | Denver | Qwest Corporation |
| (720) 544- | 固話 | Denver | Qwest Corporation |
| (720) 545- | 固話 | Denver | Level 3 Communications |
| (720) 548- | 固話 | Denver | Global Crossing Local Services-co |
| (720) 549- | 固話 | Denver | Level 3 Communications |
| (720) 550- | 固話 | Denver | Mcleodusa Telecommunications Services- Co |
| (720) 551- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 552- | 手機 | Longmont | Cellco Partnership DBA Verizon Wireless |
| (720) 553- | 固話 | Aurora | Qwest Corporation |
| (720) 554- | 固話 | Denver | Qwest Corporation |
| (720) 556- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 557- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 558- | 固話 | Denver | Qwest Corporation |
| (720) 559- | 固話 | Denver | Teleport Communications America |
| (720) 560- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 561- | 固話 | Denver | Qwest Corporation |
| (720) 562- | 固話 | Denver | Qwest Corporation |
| (720) 563- | 固話 | Denver | Qwest Corporation |
| (720) 564- | 固話 | Denver | Qwest Corporation |
| (720) 565- | 固話 | Denver | Qwest Corporation |
| (720) 566- | 固話 | Denver | Qwest Corporation |
| (720) 567- | 固話 | Denver | Level 3 Communications |
| (720) 568- | 固話 | Denver | Qwest Corporation |
| (720) 569- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 570- | 固話 | Denver | Qwest Corporation |
| (720) 577- | Unknown | Level 3 Communications | |
| (720) 578- | 固話 | Denver | Qwest Corporation |
| (720) 579- | 固話 | Denver | Xo Colorado |
| (720) 580- | 固話 | Keenesburg | Bandwidth.com Clec |
| (720) 581- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 583- | 固話 | Denver | 360networks (usa) Inc. |
| (720) 585- | 手機 | Denver | Commnet Wireless |
| (720) 587- | 固話 | Denver | AT&T Local |
| (720) 588- | 手機 | Denver | 365 Wireless |
| (720) 589- | 手機 | Aurora | T-mobile Usa |
| (720) 590- | 固話 | Denver | 360networks (usa) Inc. |
| (720) 593- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 596- | 固話 | Denver | Teleport Communications America |
| (720) 599- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 600- | 固話 | Longmont | 360networks (usa) Inc. |
| (720) 606- | 手機 | Fort Lupton | New Cingular Wireless PCS |
| (720) 608- | 固話 | Idaho Springs | Bandwidth.com Clec |
| (720) 609- | Unknown | New Cingular Wireless PCS | |
| (720) 612- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 613- | 固話 | Hudson | Mcimetro Access Transmission Services LLC |
| (720) 618- | Unknown | Cellco Partnership DBA Verizon Wireless | |
| (720) 619- | 固話 | Idaho Springs | Bandwidth.com Clec |
| (720) 620- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 621- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 622- | 固話 | Denver | Qwest Corporation |
| (720) 623- | 固話 | Denver | Neutral Tandem-colorado |
| (720) 624- | 固話 | Denver | Teleport Communications America |
| (720) 625- | 固話 | Denver | Mcleodusa Telecommunications Services- Co |
| (720) 626- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 627- | 固話 | Denver | Qwest Corporation |
| (720) 628- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 629- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 630- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 633- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 634- | 固話 | Brighton | Mcimetro Access Transmission Services LLC |
| (720) 635- | 手機 | Denver | New Cingular Wireless PCS |
| (720) 636- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 638- | 固話 | Denver | Comcast Phone Of Colorado |
| (720) 639- | Unknown | 360networks (usa) Inc. | |
| (720) 641- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 644- | 固話 | Denver | Mcleodusa Telecommunications Services- Co |
| (720) 645- | 手機 | Denver | T-mobile Usa |
| (720) 648- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 652- | 固話 | Longmont | Qwest Corporation |
| (720) 658- | 手機 | Denver | Telstar Communications Inc |
| (720) 660- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 663- | 固話 | Denver | Bandwidth.com Clec |
| (720) 666- | 固話 | Denver | Peerless Network Of Colorado |
| (720) 670- | 手機 | Aurora | Cellco Partnership DBA Verizon Wireless |
| (720) 675- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 683- | 固話 | Fort Lupton | Bandwidth.com Clec |
| (720) 684- | 固話 | Longmont | Icg Telecom Group |
| (720) 685- | 固話 | Brighton | Qwest Corporation |
| (720) 686- | 固話 | Denver | Xo Colorado |
| (720) 689- | 固話 | Denver | Bandwidth.com Clec |
| (720) 690- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 708- | 固話 | Denver | Teliax |
| (720) 722- | 固話 | Denver | Centurylink Communications LLC |
| (720) 723- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 724- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 726- | 固話 | Denver | Comcast Phone Of Colorado |
| (720) 729- | 固話 | Keenesburg | Bandwidth.com Clec |
| (720) 732- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 733- | 固話 | Denver | Qwest Corporation |
| (720) 737- | 手機 | Denver | Cellco Partnership DBA Verizon Wireless |
| (720) 739- | Unknown | Bandwidth.com Clec | |
| (720) 744- | 固話 | Aurora | Qwest Corporation |
| (720) 746- | 固話 | Golden | Qwest Corporation |
| (720) 747- | 固話 | Aurora | Qwest Corporation |
| (720) 748- | 固話 | Aurora | Qwest Corporation |
| (720) 754- | 固話 | Denver | Tw Telecom Of Colorado LLC |
| (720) 763- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 767- | Unknown | T-mobile Usa | |
| (720) 771- | 手機 | Denver | T-mobile Usa |
| (720) 775- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 777- | 固話 | Aurora | Qwest Corporation |
| (720) 785- | 固話 | Denver | Teleport Communications America |
| (720) 789- | 固話 | Aurora | Level 3 Communications |
| (720) 800- | 固話 | Henderson | 360networks (usa) Inc. |
| (720) 808- | 固話 | Aurora | Bandwidth.com Clec |
| (720) 810- | 手機 | Aurora | Cellco Partnership DBA Verizon Wireless |
| (720) 822- | Unknown | Cellco Partnership DBA Verizon Wireless | |
| (720) 833- | 固話 | Denver | Qwest Corporation |
| (720) 834- | 固話 | Denver | Teleport Communications America |
| (720) 836- | 固話 | Denver | Icg Telecom Group |
| (720) 837- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 838- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 839- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 840- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 841- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 842- | 固話 | Denver | Qwest Corporation |
| (720) 847- | 固話 | Aurora | Qwest Corporation |
| (720) 848- | 固話 | Aurora | Qwest Corporation |
| (720) 849- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 851- | 固話 | Denver | Qwest Corporation |
| (720) 852- | 固話 | Denver | Qwest Corporation |
| (720) 854- | 固話 | Denver | Qwest Corporation |
| (720) 855- | 固話 | Denver | Qwest Corporation |
| (720) 857- | 固話 | Aurora | Qwest Corporation |
| (720) 858- | 固話 | Aurora | Qwest Corporation |
| (720) 859- | 固話 | Aurora | Qwest Corporation |
| (720) 862- | 固話 | Aurora | Xo Colorado |
| (720) 863- | 固話 | Denver | Xo Colorado |
| (720) 864- | 固話 | Longmont | Qwest Corporation |
| (720) 865- | 固話 | Denver | Icg Telecom Group |
| (720) 870- | 固話 | Denver | Qwest Corporation |
| (720) 872- | 固話 | Denver | Qwest Corporation |
| (720) 873- | 固話 | Denver | Qwest Corporation |
| (720) 874- | 固話 | Denver | Qwest Corporation |
| (720) 875- | 固話 | Denver | Qwest Corporation |
| (720) 876- | 固話 | Denver | Qwest Corporation |
| (720) 877- | 固話 | Denver | Icg Telecom Group |
| (720) 878- | 固話 | Denver | Icg Telecom Group |
| (720) 879- | 固話 | Denver | Icg Telecom Group |
| (720) 880- | 固話 | Denver | Icg Telecom Group |
| (720) 881- | 固話 | Denver | Icg Telecom Group |
| (720) 882- | 固話 | Denver | Icg Telecom Group |
| (720) 883- | 固話 | Denver | Icg Telecom Group |
| (720) 884- | 固話 | Denver | Qwest Corporation |
| (720) 885- | 手機 | Denver | Leap Wireless Intl DBA Cricket Comm |
| (720) 886- | 固話 | Denver | Qwest Corporation |
| (720) 887- | 固話 | Denver | Qwest Corporation |
| (720) 888- | 固話 | Denver | Level 3 Communications |
| (720) 889- | 固話 | Denver | Xo Colorado |
| (720) 890- | 固話 | Denver | Qwest Corporation |
| (720) 891- | 固話 | Denver | Level 3 Communications |
| (720) 895- | 固話 | Denver | Qwest Corporation |
| (720) 897- | 固話 | Denver | Global Crossing Local Services-co |
| (720) 898- | 固話 | Denver | Qwest Corporation |
| (720) 903- | 固話 | Denver | Global Crossing Local Services-co |
| (720) 904- | 固話 | Denver | Qwest Corporation |
| (720) 907- | 固話 | Denver | Global Crossing Local Services-co |
| (720) 913- | 固話 | Denver | Icg Telecom Group |
| (720) 917- | 固話 | Denver | Qwest Corporation |
| (720) 920- | 固話 | Denver | Teleport Communications America |
| (720) 921- | 固話 | Denver | Icg Telecom Group |
| (720) 922- | 固話 | Denver | Qwest Corporation |
| (720) 924- | 固話 | Sedalia | Qwest Corporation |
| (720) 929- | 固話 | Denver | Qwest Corporation |
| (720) 931- | 固話 | Denver | Qwest Corporation |
| (720) 932- | 固話 | Denver | Qwest Corporation |
| (720) 933- | 手機 | Denver | T-mobile Usa |
| (720) 934- | 手機 | Denver | T-mobile Usa |
| (720) 935- | 手機 | Denver | T-mobile Usa |
| (720) 936- | 手機 | Denver | T-mobile Usa |
| (720) 937- | 手機 | Denver | T-mobile Usa |
| (720) 938- | 手機 | Denver | T-mobile Usa |
| (720) 939- | 手機 | Denver | T-mobile Usa |
| (720) 940- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 941- | 固話 | Denver | Qwest Corporation |
| (720) 942- | 固話 | Denver | Qwest Corporation |
| (720) 943- | 固話 | Denver | Global Crossing Local Services-co |
| (720) 944- | 固話 | Denver | Qwest Corporation |
| (720) 945- | 固話 | Denver | Qwest Corporation |
| (720) 946- | 固話 | Denver | Qwest Corporation |
| (720) 947- | 固話 | Denver | Qwest Corporation |
| (720) 949- | 固話 | Aurora | AT&T Local |
| (720) 951- | 手機 | Aurora | Cellco Partnership DBA Verizon Wireless |
| (720) 956- | 固話 | Denver | Qwest Corporation |
| (720) 961- | 固話 | Denver | Level 3 Communications |
| (720) 962- | 固話 | Denver | Qwest Corporation |
| (720) 963- | 固話 | Denver | Qwest Corporation |
| (720) 965- | 手機 | Denver | T-mobile Usa |
| (720) 971- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 972- | 固話 | Denver | Qwest Corporation |
| (720) 974- | 固話 | Denver | Eschelon Telecom Of Colorado |
| (720) 975- | 固話 | Aurora | Eschelon Telecom Of Colorado |
| (720) 977- | 固話 | Denver | Qwest Corporation |
| (720) 979- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 980- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 981- | 固話 | Denver | Qwest Corporation |
| (720) 982- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 984- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 985- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 987- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 988- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 989- | 手機 | Denver | Sprint Spectrum L.p. |
| (720) 998- | 固話 | Aurora | Comcast Phone Of Colorado |
| (720) 999- | 固話 | Denver | Dishnet Wireline, L.l.c. |
友情提示：撥打長途電話的辦法很多，可以使用各通信運營商（包括中國電信、中國移動、中國聯通等）固定電話、移動手機或者上網電腦來實現通話功能，固定電話、移動手機可以直接撥打對方號碼也可以通過IP電話（又名VoIP電話、網絡電話）撥打，上網電腦可以免費與對方上網電腦通話也可以低價撥打對方固定電話、移動手機，請根據各自情況綜合考慮選用。
問題報告： 本站盡力為您提供最全面、仔細、準確的長途電話區號、手機號段歸屬、電話號碼查詢信息，但因為各個地區的合併、增加、撤銷、變更以及電話號碼方案變更、升位還有地名的多樣性等問題，難以避免出現錯誤或者過時信息，非常歡迎大家在使用中報告發現的問題或者告知更新內容。請直接在下面留言，本站核實後會馬上進行修改，以便對以後的瀏覽者有更好的幫助，非常感謝！
