NumberResearchRecent thousands-block assignments
23 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 |
|---|---|---|---|---|---|---|---|
| 2021-04-28 | 737-272-2XXX | 2000–2999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | AUSTIN | TX |
| 2021-04-28 | 737-272-3XXX | 3000–3999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | AUSTIN | TX |
| 2021-04-28 | 737-272-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | AUSTIN | TX |
| 2021-04-28 | 737-272-5XXX | 5000–5999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | AUSTIN | TX |
| 2021-04-28 | 737-770-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | BUDA | TX |
| 2021-04-28 | 737-864-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | TAYLOR | TX |
| 2021-04-28 | 737-877-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | BUDA | TX |
| 2021-04-20 | 737-283-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | LOMETA | TX |
| 2021-04-18 | 737-272-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-272-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-272-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-285-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-285-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-285-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-285-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-285-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-327-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUTTO | TX |
| 2021-04-18 | 737-327-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HUTTO | TX |
| 2021-04-18 | 737-377-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-377-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-825-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-825-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-825-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-825-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-18 | 737-895-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | AUSTIN | TX |
| 2021-04-15 | 737-244-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | TAYLOR | TX |
| 2021-04-15 | 737-667-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | GEORGETOWN | TX |
| 2021-04-15 | 737-738-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | GEORGETOWN | TX |
| 2021-04-15 | 737-864-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | TAYLOR | TX |
| 2021-04-14 | 737-788-8XXX | 8000–8999 | Assigned | FRACTEL, LLC | 965H | BURNET | TX |
| 2021-04-08 | 737-828-7XXX | 7000–7999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | KEMPNER | TX |
| 2021-04-06 | 737-332-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | BURNET | TX |
| 2021-04-06 | 737-766-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | LEANDER | TX |
| 2021-04-06 | 737-766-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | LEANDER | TX |
| 2021-04-01 | 737-372-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | BUCHANNDAM | TX |
| 2021-04-01 | 737-427-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | MCDADE | TX |
| 2021-04-01 | 737-437-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | THORNDTHRL | TX |
| 2021-04-01 | 737-437-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | THORNDTHRL | TX |
| 2021-04-01 | 737-473-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | SANGABRIEL | TX |
| 2021-04-01 | 737-677-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | SMITHVILLE | TX |
| 2021-04-01 | 737-677-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | SMITHVILLE | TX |
| 2021-04-01 | 737-732-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | ROCKDALE | TX |
| 2021-04-01 | 737-732-9XXX | 9000–9999 | Assigned | ONVOY, LLC - TX | 903C | ROCKDALE | TX |
| 2021-03-31 | 737-276-0XXX | 0000–0999 | Assigned | ONVOY, LLC - TX | 903C | KYLE | TX |
| 2021-03-31 | 737-276-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | KYLE | TX |
| 2021-03-31 | 737-276-5XXX | 5000–5999 | Assigned | ONVOY, LLC - TX | 903C | KYLE | TX |
| 2021-03-31 | 737-307-1XXX | 1000–1999 | Assigned | ONVOY, LLC - TX | 903C | BERTRAM | TX |
| 2021-03-31 | 737-317-7XXX | 7000–7999 | Assigned | ONVOY, LLC - TX | 903C | DRIPPNGSPG | TX |
| 2021-03-31 | 737-317-8XXX | 8000–8999 | Assigned | ONVOY, LLC - TX | 903C | DRIPPNGSPG | TX |
| 2021-03-31 | 737-327-4XXX | 4000–4999 | Assigned | ONVOY, LLC - TX | 903C | HUTTO | TX |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.