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 |
|---|---|---|---|---|---|---|---|
| 2014-04-18 | 903-913-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | GRANDSALIN | TX |
| 2014-04-18 | 903-919-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SULPHURSPG | TX |
| 2014-04-17 | 903-308-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | EMORY | TX |
| 2014-04-17 | 903-914-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CASH | TX |
| 2014-04-16 | 903-218-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | KILGORE | TX |
| 2014-04-16 | 903-392-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HENDERSON | TX |
| 2014-04-16 | 903-502-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | CANTON | TX |
| 2014-04-16 | 903-717-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | MTPLEASANT | TX |
| 2014-04-16 | 903-884-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | OMAHA | TX |
| 2014-04-15 | 903-300-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | COOPER | TX |
| 2014-04-15 | 903-366-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | COMMERCE | TX |
| 2014-04-15 | 903-488-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | COMO | TX |
| 2014-04-15 | 903-879-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CORSICANA | TX |
| 2014-04-14 | 903-435-1XXX | 1000–1999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BIRTHRIGHT | TX |
| 2014-04-14 | 903-502-7XXX | 7000–7999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CANTON | TX |
| 2014-04-14 | 903-568-1XXX | 1000–1999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CELESTE | TX |
| 2014-04-14 | 903-751-8XXX | 8000–8999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | CADDOMILLS | TX |
| 2014-04-14 | 903-781-6XXX | 6000–6999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | ALBA | TX |
| 2014-04-14 | 903-980-5XXX | 5000–5999 | Assigned | CENTURYLINK COMMUNICATIONS, LLC | 508J | BENWHEELER | TX |
| 2014-03-31 | 903-209-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | SHERMAN | TX |
| 2014-03-31 | 903-229-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | CORSICANA | TX |
| 2014-03-31 | 903-273-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | FRANKSTON | TX |
| 2014-03-31 | 903-340-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | MABANK | TX |
| 2014-03-31 | 903-451-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | PAYNE SPG | TX |
| 2014-03-31 | 903-489-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | MALAKOFF | TX |
| 2014-03-31 | 903-609-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | PARIS | TX |
| 2014-03-31 | 903-954-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | BULLARD | TX |
| 2014-03-31 | 903-978-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | LKPALSTINE | TX |
| 2014-03-19 | 903-423-4XXX | 4000–4999 | Assigned | PEOPLES COMMUNICATION, INC. -TX | 135H | GREENVILLE | TX |
| 2014-03-13 | 903-600-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | RICE | TX |
| 2014-03-07 | 903-820-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SHERMAN | TX |
| 2014-02-25 | 903-833-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | BENWHEELER | TX |
| 2014-02-03 | 903-492-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | QUITMAN | TX |
| 2014-02-03 | 903-608-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | TLSVNPONTS | TX |
| 2014-01-30 | 903-347-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | WINNSBORO | TX |
| 2014-01-29 | 903-202-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | WHITEHOUSE | TX |
| 2014-01-29 | 903-202-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | WHITEHOUSE | TX |
| 2014-01-29 | 903-202-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | WHITEHOUSE | TX |
| 2014-01-29 | 903-270-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | MT VERNON | TX |
| 2014-01-29 | 903-339-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | JACKSONVL | TX |
| 2014-01-29 | 903-339-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | JACKSONVL | TX |
| 2014-01-29 | 903-638-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | MINEOLA | TX |
| 2014-01-29 | 903-708-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | PITTSBURG | TX |
| 2014-01-29 | 903-722-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | HENDERSON | TX |
| 2014-01-29 | 903-722-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | HENDERSON | TX |
| 2014-01-29 | 903-778-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | TRINIDAD | TX |
| 2014-01-29 | 903-919-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | SULPHURSPG | TX |
| 2014-01-29 | 903-919-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | SULPHURSPG | TX |
| 2014-01-29 | 903-919-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | SULPHURSPG | TX |
| 2014-01-24 | 903-651-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | WHITESBORO | 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.