NumberResearchRecent thousands-block assignments
11 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 281
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 |
|---|---|---|---|---|---|---|---|
| 2024-04-10 | 281-214-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WESTFIELD | TX |
| 2024-04-10 | 281-602-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SPRING | TX |
| 2024-04-01 | 281-500-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LANGHAMCRK | TX |
| 2024-04-01 | 281-640-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SATSUMA | TX |
| 2024-03-12 | 281-270-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2024-03-01 | 281-271-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DEER PARK | TX |
| 2024-01-25 | 281-270-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2024-01-25 | 281-270-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2024-01-25 | 281-270-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2023-12-18 | 281-648-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRIENDSWD | TX |
| 2023-12-11 | 281-270-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2023-12-11 | 281-542-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | DEER PARK | TX |
| 2023-11-17 | 281-272-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2023-11-17 | 281-749-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2023-11-17 | 281-759-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HSTNSUBURB | TX |
| 2023-09-28 | 281-270-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2023-09-28 | 281-270-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | BARKER | TX |
| 2023-01-24 | 281-984-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | APOLLO | TX |
| 2023-01-20 | 281-281-0XXX | 0000–0999 | Assigned | EVOLVE CELLULAR, INC. | 139F | HSTNSUBURB | TX |
| 2023-01-20 | 281-281-6XXX | 6000–6999 | Assigned | EVOLVE CELLULAR, INC. | 139F | HSTNSUBURB | TX |
| 2023-01-06 | 281-281-1XXX | 1000–1999 | Assigned | USFON, INC. - TX | 473F | HSTNSUBURB | TX |
| 2023-01-06 | 281-281-2XXX | 2000–2999 | Assigned | USFON, INC. - TX | 473F | HSTNSUBURB | TX |
| 2023-01-06 | 281-281-3XXX | 3000–3999 | Assigned | USFON, INC. - TX | 473F | HSTNSUBURB | TX |
| 2023-01-06 | 281-281-4XXX | 4000–4999 | Assigned | USFON, INC. - TX | 473F | HSTNSUBURB | TX |
| 2023-01-06 | 281-281-5XXX | 5000–5999 | Assigned | USFON, INC. - TX | 473F | HSTNSUBURB | TX |
| 2023-01-06 | 281-281-7XXX | 7000–7999 | Assigned | USFON, INC. - TX | 473F | HSTNSUBURB | TX |
| 2023-01-06 | 281-281-8XXX | 8000–8999 | Assigned | USFON, INC. - TX | 473F | HSTNSUBURB | TX |
| 2023-01-06 | 281-281-9XXX | 9000–9999 | Assigned | USFON, INC. - TX | 473F | HSTNSUBURB | TX |
| 2022-12-20 | 281-752-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | HSTNSUBURB | TX |
| 2022-11-15 | 281-949-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | SATSUMA | TX |
| 2022-09-30 | 281-209-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | WESTFIELD | TX |
| 2022-08-19 | 281-214-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | WESTFIELD | TX |
| 2022-08-19 | 281-694-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | SEABROOK | TX |
| 2022-07-26 | 281-769-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | KATY | TX |
| 2022-07-05 | 281-571-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | SATSUMA | TX |
| 2022-05-26 | 281-694-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SEABROOK | TX |
| 2022-05-10 | 281-643-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MANVEL | TX |
| 2022-05-10 | 281-643-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MANVEL | TX |
| 2022-04-28 | 281-805-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2022-04-28 | 281-805-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2022-04-28 | 281-805-2XXX | 2000–2999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2022-04-28 | 281-805-3XXX | 3000–3999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2022-04-28 | 281-805-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2022-04-28 | 281-805-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2022-04-28 | 281-805-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2022-04-28 | 281-805-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2022-04-28 | 281-805-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2022-04-28 | 281-805-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | HSTNSUBURB | TX |
| 2022-04-22 | 281-400-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRIENDSWD | TX |
| 2022-04-22 | 281-400-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRIENDSWD | 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.