NumberResearchRecent thousands-block assignments
0 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, all time — 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 |
|---|---|---|---|---|---|---|---|
| 2024-03-01 | 903-858-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | REDSPRINGS | TX |
| 2022-11-25 | 903-995-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | MURCHISON | TX |
| 2022-11-16 | 903-847-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | TURNERTOWN | TX |
| 2022-06-21 | 903-437-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | BROWNSBORO | TX |
| 2022-06-03 | 903-282-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | KERENS | TX |
| 2022-01-13 | 903-726-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | NEWSMMRFLD | TX |
| 2021-09-24 | 903-861-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | PRICE | TX |
| 2019-10-25 | 903-289-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | KEMP | TX |
| 2018-08-08 | 903-228-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | GUNTER | TX |
| 2018-07-31 | 903-350-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | OWENTOWN | TX |
| 2018-07-31 | 903-812-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | KILGORE | TX |
| 2017-05-16 | 903-859-8XXX | 8000–8999 | Assigned | CSC VOICE, LLC | 612K | ARP | TX |
| 2015-06-30 | 903-425-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | EUSTACE | TX |
| 2014-07-21 | 903-630-9XXX | 9000–9999 | Assigned | CSC VOICE, LLC | 612K | TYLER | TX |
| 2014-04-18 | 903-515-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | CHANDLER | 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 | 903-954-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | BULLARD | TX |
| 2014-03-31 | 903-978-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | LKPALSTINE | TX |
| 2014-02-03 | 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 |
| 2014-01-24 | 903-913-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | GRANDSALIN | TX |
| 2014-01-16 | 903-558-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | SULPHURSPG | TX |
| 2014-01-16 | 903-787-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | TYLER | TX |
| 2013-11-11 | 903-844-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | GLADEWATER | TX |
| 2013-11-05 | 903-630-1XXX | 1000–1999 | Assigned | CSC VOICE, LLC | 612K | TYLER | TX |
| 2013-11-05 | 903-630-2XXX | 2000–2999 | Assigned | CSC VOICE, LLC | 612K | TYLER | TX |
| 2013-11-05 | 903-630-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | TYLER | TX |
| 2013-11-05 | 903-630-4XXX | 4000–4999 | Assigned | CSC VOICE, LLC | 612K | TYLER | TX |
| 2013-11-05 | 903-630-5XXX | 5000–5999 | Assigned | CSC VOICE, LLC | 612K | TYLER | TX |
| 2013-11-05 | 903-630-6XXX | 6000–6999 | Assigned | CSC VOICE, LLC | 612K | TYLER | TX |
| 2013-11-05 | 903-630-7XXX | 7000–7999 | Assigned | CSC VOICE, LLC | 612K | 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.