NumberResearchRecent thousands-block assignments
9 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, last 30 days — NPA 903
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-07-28 | 903-231-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | TAWAKONI | TX |
| 2011-07-28 | 903-471-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | MARSHALL | TX |
| 2011-07-27 | 903-905-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PARIS | TX |
| 2011-06-29 | 903-364-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | WHITEWRGHT | TX |
| 2011-06-29 | 903-459-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | MILLER GRV | TX |
| 2011-06-29 | 903-865-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | MYRTLE SPG | TX |
| 2011-06-28 | 903-747-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TYLER | TX |
| 2011-06-28 | 903-787-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TYLER | TX |
| 2011-06-28 | 903-787-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TYLER | TX |
| 2011-06-28 | 903-804-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ATHENS | TX |
| 2011-06-17 | 903-905-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | PARIS | TX |
| 2011-06-13 | 903-951-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | SULPHURSPG | TX |
| 2011-06-10 | 903-660-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HALLSVILLE | TX |
| 2011-06-10 | 903-871-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | WHITEHOUSE | TX |
| 2011-06-07 | 903-378-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | HONEYGROVE | TX |
| 2011-06-07 | 903-896-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | EDGEWOOD | TX |
| 2011-06-04 | 903-265-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CARTHAGE | TX |
| 2011-06-04 | 903-374-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | GLADEWATER | TX |
| 2011-05-31 | 903-598-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | POINT | TX |
| 2011-05-31 | 903-765-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | ALBA | TX |
| 2011-05-24 | 903-416-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | DENISON | TX |
| 2011-05-23 | 903-231-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | TAWAKONI | TX |
| 2011-05-23 | 903-494-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | GREENVILLE | TX |
| 2011-05-23 | 903-702-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | MARSHALL | TX |
| 2011-05-23 | 903-708-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | PITTSBURG | TX |
| 2011-05-23 | 903-871-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | WHITEHOUSE | TX |
| 2011-05-19 | 903-483-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | KILGORE | TX |
| 2011-05-19 | 903-541-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | JACKSONVL | TX |
| 2011-05-18 | 903-274-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | GREENVILLE | TX |
| 2011-05-18 | 903-602-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CORSICANA | TX |
| 2011-05-18 | 903-804-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | ATHENS | TX |
| 2011-05-12 | 903-215-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | LONGVIEW | TX |
| 2011-05-12 | 903-422-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | GREENVILLE | TX |
| 2011-05-12 | 903-508-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | TYLER | TX |
| 2011-05-05 | 903-602-8XXX | 8000–8999 | Assigned | SOUTHWESTERN BELL | 9533 | CORSICANA | TX |
| 2011-04-25 | 903-730-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | TYLER | TX |
| 2011-04-15 | 903-401-8XXX | 8000–8999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | PARIS | TX |
| 2011-04-13 | 903-747-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TYLER | TX |
| 2011-04-07 | 903-462-1XXX | 1000–1999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | DENISON | TX |
| 2011-04-05 | 903-471-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARSHALL | TX |
| 2011-03-30 | 903-287-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CANTON | TX |
| 2011-03-29 | 903-949-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | TEXARKANA | TX |
| 2011-03-18 | 903-606-0XXX | 0000–0999 | Assigned | SOUTHWESTERN BELL | 9533 | TYLER | TX |
| 2011-03-18 | 903-606-1XXX | 1000–1999 | Assigned | SOUTHWESTERN BELL | 9533 | TYLER | TX |
| 2011-03-18 | 903-606-2XXX | 2000–2999 | Assigned | SOUTHWESTERN BELL | 9533 | TYLER | TX |
| 2011-03-18 | 903-606-3XXX | 3000–3999 | Assigned | SOUTHWESTERN BELL | 9533 | TYLER | TX |
| 2011-03-18 | 903-606-4XXX | 4000–4999 | Assigned | SOUTHWESTERN BELL | 9533 | TYLER | TX |
| 2011-03-18 | 903-606-5XXX | 5000–5999 | Assigned | SOUTHWESTERN BELL | 9533 | TYLER | TX |
| 2011-03-18 | 903-606-6XXX | 6000–6999 | Assigned | SOUTHWESTERN BELL | 9533 | TYLER | TX |
| 2011-03-18 | 903-606-7XXX | 7000–7999 | Assigned | SOUTHWESTERN BELL | 9533 | TYLER | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.