| 004 | Verizon | Verizon Wireless | United States of America | 310004 | — | — |
| 005 | Verizon | Verizon Wireless | United States of America | 310005 | — | 2G |
| 006 | Verizon | Verizon Wireless | United States of America | 310006 | — | — |
| 010 | Verizon | Verizon Wireless | United States of America | 310010 | — | — |
| 012 | Verizon | Verizon Wireless | United States of America | 310012 | — | 4G |
| 013 | Verizon | Verizon Wireless | United States of America | 310013 | — | — |
| 014 | Unknown network | | United States of America | 310014 | — | — |
| 015 | Southern Linc | Southern Communications | United States of America | 310015 | — | 4G |
| 016 | AT&T | AT&T Mobility | United States of America | 310016 | — | 2G |
| 017 | ProxTel | North Sight Communications Inc. | United States of America | 310017 | — | 2G |
| 020 | Union Wireless | Union Telephone Company | United States of America | 310020 | USAUN | 2G · 3G |
| 030 | AT&T | AT&T Mobility | United States of America | 310030 | — | 2G |
| 032 | IT&E Wireless | IT&E Overseas, Inc | Guam | 310032 | — | 2G · 4G |
| 033 | Guam Telephone Authority | Guam Telephone Authority | Guam | 310033 | — | — |
| 034 | Airpeak | | United States of America | 310034 | — | 2G |
| 035 | ETEX Wireless | ETEX Communications, LP | United States of America | 310035 | — | — |
| 040 | MTA | Matanuska Telephone Association, Inc. | United States of America | 310040 | — | 2G |
| 050 | GCI | Alaska Communications | United States of America | 310050 | — | 2G |
| 053 | Virgin Mobile | Sprint | United States of America | 310053 | — | — |
| 054 | Alltel US | Alltel US | United States of America | 310054 | — | — |
| 59 | Cellular One | | Bermuda | 31059 | — | 2G |
| 060 | Consolidated Telcom | Consolidated Telcom | United States of America | 310060 | — | — |
| 066 | U.S. Cellular | | United States of America | 310066 | — | 2G |
| 070 | AT&T | AT&T Mobility | United States of America | 310070 | — | 2G |
| 080 | AT&T | AT&T Mobility | United States of America | 310080 | — | 2G |
| 090 | AT&T | AT&T Mobility | United States of America | 310090 | — | 2G |
| 100 | Plateau Wireless | New Mexico RSA 4 East LP | United States of America | 310100 | — | 2G · 3G |
| 110 | IT&E Wireless | PTI Pacifica Inc. | Northern Mariana Islands | 310110 | USAGU | 2G · 4G |
| 120 | Sprint | Sprint Corporation | United States of America | 310120 | USASP | 2G · 4G |
| 130 | Carolina West Wireless | | United States of America | 310130 | — | 2G |
| 140 | GTA Wireless | Teleguam Holdings, LLC | Guam | 310140 | — | 2G · 3G · 4G |
| 150 | AT&T | AT&T Mobility | United States of America | 310150 | — | 2G · 3G |
| 160 | T-Mobile | T-Mobile US | United States of America | 310160 | — | 2G |
| 170 | AT&T | AT&T Mobility | United States of America | 310170 | — | 5G |
| 180 | West Central | West Central Wireless | United States of America | 310180 | — | 2G · 3G |
| 190 | GCI | Alaska Communications | United States of America | 310190 | — | 2G |
| 200 | T-Mobile | T-Mobile | United States of America | 310200 | — | 2G |
| 210 | T-Mobile | T-Mobile | United States of America | 310210 | — | 2G |
| 220 | T-Mobile | T-Mobile | United States of America | 310220 | — | 2G |
| 230 | T-Mobile | T-Mobile | United States of America | 310230 | — | 2G |
| 240 | T-Mobile | T-Mobile | United States of America | 310240 | — | 2G |
| 250 | T-Mobile | T-Mobile | United States of America | 310250 | — | 2G |
| 260 | T-Mobile | T-Mobile USA | United States of America | 310260 | USAW6 | 2G · 3G · 4G · 5G |
| 270 | T-Mobile | T-Mobile | United States of America | 310270 | — | 2G |
| 280 | AT&T | AT&T Mobility | United States of America | 310280 | — | 2G |
| 290 | nep | NEP Cellcorp Inc. | United States of America | 310290 | — | 2G |
| 300 | Big Sky Mobile | iSmart Mobile, LLC | United States of America | 310300 | — | 2G |
| 310 | T-Mobile | T-Mobile | United States of America | 310310 | — | 2G |
| 311 | Farmers Wireless | Farmers Wireless | United States of America | 310311 | — | 2G |
| 320 | Cellular One | Smith Bagley, Inc. | United States of America | 310320 | — | 2G · 3G |
| 330 | Wireless Partners, LLC | Wireless Partners, LLC | United States of America | 310330 | — | 4G |
| 340 | Limitless Mobile | Limitless Mobile, LLC | United States of America | 310340 | — | 2G |
| 350 | Verizon | Verizon Wireless | United States of America | 310350 | — | 2G |
| 360 | Pioneer Cellular | Cellular Network Partnership | United States of America | 310360 | — | 2G |
| 380 | AT&T | AT&T Mobility | United States of America | 310380 | — | 2G · 3G |
| 390 | Cellular One of East Texas | TX-11 Acquisition, LLC | United States of America | 310390 | — | 2G · 4G |
| 400 | iConnect | Wave Runner LLC | Guam | 310400 | — | 2G · 3G · 4G |
| 410 | AT&T | AT&T Mobility | United States of America | 310410 | USACG | 2G · 3G |
| 420 | Cincinnati Bell | Cincinnati Bell Wireless | United States of America | 310420 | USACB | 2G · 3G |
| 430 | GCI | GCI Communications Corp. | United States of America | 310430 | — | 2G · 3G |
| 440 | Numerex | Numerex | United States of America | 310440 | — | — |
| 450 | Viaero | Viaero Wireless | United States of America | 310450 | USACI | 2G · 3G |
| 460 | Conecto | NewCore Wireless LLC | United States of America | 310460 | — | — |
| 470 | NTT DoCoMo Pacific | NTT DoCoMo Pacific | United States of America | 310470 | GUMHT | — |
| 480 | iConnect | Wave Runner LLC | Guam | 310480 | — | 2G |
| 490 | T-Mobile | T-Mobile | United States of America | 310490 | — | 2G |
| 500 | Alltel | Public Service Cellular Inc. | United States of America | 310500 | — | 2G |
| 510 | Cellcom | Nsight | United States of America | 310510 | — | — |
| 520 | TNS | Transaction Network Services | United States of America | 310520 | — | — |
| 530 | iWireless | Iowa Wireless Services LLC | United States of America | 310530 | — | — |
| 540 | Phoenix | Hilliary Communications | United States of America | 310540 | — | 2G |
| 550 | Syniverse Technologies | Syniverse Technologies | United States of America | 310550 | — | — |
| 560 | AT&T | AT&T Mobility | United States of America | 310560 | — | 2G |
| 570 | Cellular One | TX-10, LLC and Central Louisiana Cellular, LLC (MTPCS) | United States of America | 310570 | — | 2G · 4G |
| 580 | Inland Cellular Telephone Company | Inland Cellular Telephone Company | United States of America | 310580 | — | 2G |
| 590 | Verizon Wireless | Verizon Wireless | United States of America | 310590 | — | 2G |
| 600 | Cellcom | NewCell Inc. | United States of America | 310600 | — | 2G |
| 610 | Epic PCS | Elkhart Telephone Co. | United States of America | 310610 | — | 2G |
| 620 | Cellcom | Nsighttel Wireless LLC | United States of America | 310620 | — | — |
| 630 | miSpot | Agri-Valley Communications | United States of America | 310630 | — | 4G |
| 640 | Numerex | Numerex | United States of America | 310640 | — | — |
| 650 | Jasper | Jasper Technologies | United States of America | 310650 | — | — |
| 660 | T-Mobile | | United States of America | 310660 | — | 2G |
| 670 | AT&T | AT&T Mobility | United States of America | 310670 | — | — |
| 680 | AT&T | AT&T Mobility | United States of America | 310680 | — | 2G |
| 690 | Limitless Mobile | Limitless Mobile, LLC | United States of America | 310690 | USACW | 2G · 4G |
| 700 | Bigfoot Cellular | Cross Valiant Cellular Partnership | United States of America | 310700 | — | 2G |
| 710 | ASTAC | Arctic Slope Telephone Association Cooperative | United States of America | 310710 | — | 3G · 4G |
| 720 | Syniverse Technologies | Syniverse Technologies | United States of America | 310720 | — | — |
| 730 | U.S. Cellular | | United States of America | 310730 | — | — |
| 740 | Viaero | Viaero Wireless | United States of America | 310740 | — | 4G |
| 750 | Appalachian Wireless | East Kentucky Network, LLC | United States of America | 310750 | — | 2G |
| 760 | Lynch 3G Communications Corporation | Lynch 3G Communications Corporation | United States of America | 310760 | — | — |
| 770 | iWireless | Iowa Wireless Services | United States of America | 310770 | — | 2G · 3G · 4G |
| 780 | Dispatch Direct | D. D. Inc. | United States of America | 310780 | — | 2G |
| 790 | BLAZE | PinPoint Communications Inc. | United States of America | 310790 | — | 2G · 3G · 4G |
| 800 | T-Mobile | T-Mobile | United States of America | 310800 | — | 2G |
| 810 | Pacific Lightwave Inc. | Pacific Lightwave Inc. | United States of America | 310810 | — | — |
| 820 | Verizon Wireless | Verizon Wireless | United States of America | 310820 | — | — |
| 830 | Sprint | Sprint Corporation | United States of America | 310830 | — | — |
| 840 | telna Mobile | Telecom North America Mobile, Inc. | United States of America | 310840 | — | — |
| 850 | Aeris | Aeris Communications, Inc. | United States of America | 310850 | — | — |
| 860 | Five Star Wireless | TX RSA 15B2, LP | United States of America | 310860 | — | 2G |
| 870 | PACE | Kaplan Telephone Company | United States of America | 310870 | — | 2G |
| 880 | DTC Wireless | Advantage Cellular Systems, Inc. | United States of America | 310880 | — | 4G |
| 890 | Verizon Wireless | Verizon Wireless | United States of America | 310890 | — | 2G |
| 900 | Mid-Rivers Wireless | Cable & Communications Corporation | United States of America | 310900 | — | 2G |
| 910 | Verizon Wireless | Verizon Wireless | United States of America | 310910 | — | 2G |
| 920 | James Valley Wireless, LLC | James Valley Wireless, LLC | United States of America | 310920 | — | 2G |
| 930 | Copper Valley Wireless | Copper Valley Wireless | United States of America | 310930 | — | 2G |
| 940 | Tyntec Inc. | Tyntec Inc. | United States of America | 310940 | — | — |
| 950 | AT&T | AT&T Mobility | United States of America | 310950 | — | 2G |
| 960 | STRATA | UBET Wireless | United States of America | 310960 | — | 2G |
| 970 | Globalstar | Globalstar | United States of America | 310970 | — | — |
| 980 | Peoples Telephone | Texas RSA 7B3 | United States of America | 310980 | — | 2G · 4G |
| 990 | Evolve Broadband | Evolve Cellular Inc. | United States of America | 310990 | — | 4G |