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 251
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 |
|---|---|---|---|---|---|---|---|
| 2021-03-22 | 251-465-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MOBILE | AL |
| 2021-03-22 | 251-465-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MOBILE | AL |
| 2021-03-22 | 251-465-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MOBILE | AL |
| 2021-03-22 | 251-465-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MOBILE | AL |
| 2021-03-22 | 251-465-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | MOBILE | AL |
| 2021-03-16 | 251-200-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | FOLEY | AL |
| 2021-03-16 | 251-200-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | FOLEY | AL |
| 2021-03-16 | 251-215-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | FOLEY | AL |
| 2021-03-16 | 251-397-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - AL | 072F | DAUPHIN IS | AL |
| 2021-03-10 | 251-254-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - AL | 072F | FLOMATON | AL |
| 2021-03-09 | 251-850-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - AL | 5255 | FAIRHOPE | AL |
| 2021-03-05 | 251-349-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | MOBILE | AL |
| 2021-03-05 | 251-349-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL | 6804 | MOBILE | AL |
| 2021-03-05 | 251-353-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | PETERMAN | AL |
| 2021-02-24 | 251-337-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AL | 604E | REPTON | AL |
| 2021-02-24 | 251-337-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AL | 604E | REPTON | AL |
| 2021-02-24 | 251-339-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AL | 604E | GOSPORT | AL |
| 2021-02-24 | 251-339-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AL | 604E | GOSPORT | AL |
| 2021-02-24 | 251-339-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AL | 604E | GOSPORT | AL |
| 2021-02-24 | 251-350-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AL | 604E | BAYMINETTE | AL |
| 2021-02-24 | 251-350-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AL | 604E | BAYMINETTE | AL |
| 2021-02-24 | 251-350-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AL | 604E | BAYMINETTE | AL |
| 2021-02-24 | 251-350-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AL | 604E | BAYMINETTE | AL |
| 2021-02-24 | 251-390-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AL | 604E | BAYOUBATRE | AL |
| 2021-02-24 | 251-390-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AL | 604E | BAYOUBATRE | AL |
| 2021-02-24 | 251-390-8XXX | 8000–8999 | Assigned | ONVOY, LLC - AL | 604E | BAYOUBATRE | AL |
| 2021-02-24 | 251-397-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AL | 604E | DAUPHIN IS | AL |
| 2021-02-24 | 251-397-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AL | 604E | DAUPHIN IS | AL |
| 2021-02-24 | 251-397-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AL | 604E | DAUPHIN IS | AL |
| 2021-02-24 | 251-420-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AL | 604E | BEATRICE | AL |
| 2021-02-24 | 251-420-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AL | 604E | BEATRICE | AL |
| 2021-02-24 | 251-420-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AL | 604E | BEATRICE | AL |
| 2021-02-24 | 251-430-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AL | 604E | COFFEEVL | AL |
| 2021-02-24 | 251-430-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AL | 604E | COFFEEVL | AL |
| 2021-02-24 | 251-430-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AL | 604E | COFFEEVL | AL |
| 2021-02-24 | 251-440-5XXX | 5000–5999 | Assigned | ONVOY, LLC - AL | 604E | FRISCOCITY | AL |
| 2021-02-24 | 251-440-6XXX | 6000–6999 | Assigned | ONVOY, LLC - AL | 604E | FRISCOCITY | AL |
| 2021-02-24 | 251-440-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AL | 604E | FRISCOCITY | AL |
| 2021-02-24 | 251-480-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AL | 604E | MONROEVL | AL |
| 2021-02-24 | 251-480-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AL | 604E | MONROEVL | AL |
| 2021-02-24 | 251-480-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AL | 604E | MONROEVL | AL |
| 2021-02-24 | 251-512-7XXX | 7000–7999 | Assigned | ONVOY, LLC - AL | 604E | COFFEEVL | AL |
| 2021-02-24 | 251-530-2XXX | 2000–2999 | Assigned | ONVOY, LLC - AL | 604E | PINE APPLE | AL |
| 2021-02-24 | 251-530-3XXX | 3000–3999 | Assigned | ONVOY, LLC - AL | 604E | PINE APPLE | AL |
| 2021-02-24 | 251-530-4XXX | 4000–4999 | Assigned | ONVOY, LLC - AL | 604E | PINE APPLE | AL |
| 2021-02-04 | 251-448-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MCCULLOUGH | AL |
| 2021-02-04 | 251-448-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MCCULLOUGH | AL |
| 2021-02-04 | 251-449-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FINCHBURG | AL |
| 2021-02-04 | 251-449-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FINCHBURG | AL |
| 2021-02-04 | 251-600-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | FOLEY | AL |
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.