NumberResearchRecent thousands-block assignments
23 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 737
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 |
|---|---|---|---|---|---|---|---|
| 2021-06-10 | 737-279-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2021-06-10 | 737-279-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2021-06-10 | 737-895-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2021-06-10 | 737-895-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | AUSTIN | TX |
| 2021-06-09 | 737-279-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2021-06-09 | 737-279-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2021-06-09 | 737-279-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2021-06-09 | 737-279-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2021-06-09 | 737-279-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2021-06-09 | 737-279-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2021-06-09 | 737-279-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | AUSTIN | TX |
| 2021-06-07 | 737-366-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - TX | 004F | MILANO | TX |
| 2021-06-07 | 737-799-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | GRANGER | TX |
| 2021-06-03 | 737-284-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | WIMBERLEY | TX |
| 2021-06-03 | 737-284-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | WIMBERLEY | TX |
| 2021-06-03 | 737-286-6XXX | 6000–6999 | Assigned | ONVOY, LLC - TX | 903C | KYLE | TX |
| 2021-06-03 | 737-286-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | KYLE | TX |
| 2021-06-03 | 737-286-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | KYLE | TX |
| 2021-06-01 | 737-282-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DALE/LTNSP | TX |
| 2021-06-01 | 737-283-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LOMETA | TX |
| 2021-06-01 | 737-284-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | WIMBERLEY | TX |
| 2021-06-01 | 737-286-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KYLE | TX |
| 2021-06-01 | 737-287-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LEANDER | TX |
| 2021-06-01 | 737-307-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BERTRAM | TX |
| 2021-06-01 | 737-317-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DRIPPNGSPG | TX |
| 2021-06-01 | 737-327-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HUTTO | TX |
| 2021-06-01 | 737-332-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BURNET | TX |
| 2021-06-01 | 737-337-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FENTRESS | TX |
| 2021-06-01 | 737-344-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SAN MARCOS | TX |
| 2021-06-01 | 737-366-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MILANO | TX |
| 2021-06-01 | 737-427-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MCDADE | TX |
| 2021-06-01 | 737-437-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | THORNDTHRL | TX |
| 2021-06-01 | 737-473-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANGABRIEL | TX |
| 2021-06-01 | 737-577-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BRIGGS | TX |
| 2021-06-01 | 737-677-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SMITHVILLE | TX |
| 2021-06-01 | 737-688-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | COUPLAND | TX |
| 2021-06-01 | 737-734-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LIBERTY HL | TX |
| 2021-06-01 | 737-738-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GEORGETOWN | TX |
| 2021-06-01 | 737-767-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LAMPASAS | TX |
| 2021-06-01 | 737-773-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | JARRELL | TX |
| 2021-06-01 | 737-786-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ELGIN | TX |
| 2021-06-01 | 737-799-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GRANGER | TX |
| 2021-06-01 | 737-828-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | KEMPNER | TX |
| 2021-06-01 | 737-842-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PAIGE | TX |
| 2021-06-01 | 737-864-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TAYLOR | TX |
| 2021-06-01 | 737-877-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BUDA | TX |
| 2021-06-01 | 737-899-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BASTROP | TX |
| 2021-06-01 | 737-937-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MARTINDALE | TX |
| 2021-06-01 | 737-946-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ADAMSVILLE | TX |
| 2021-05-28 | 737-357-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LOCKHART | 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.