NumberResearchRecent thousands-block assignments
15 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 341
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2021-12-23 | 341-207-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RICHMOND | CA |
| 2021-12-15 | 341-212-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OKLD BKLY | CA |
| 2021-12-15 | 341-212-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OKLD BKLY | CA |
| 2021-12-15 | 341-212-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OKLD BKLY | CA |
| 2021-12-15 | 341-212-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OKLD BKLY | CA |
| 2021-12-15 | 341-212-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OKLD BKLY | CA |
| 2021-12-15 | 341-212-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | OKLD BKLY | CA |
| 2021-12-15 | 341-212-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | OKLD BKLY | CA |
| 2021-12-15 | 341-212-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OKLD BKLY | CA |
| 2021-12-15 | 341-212-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OKLD BKLY | CA |
| 2021-12-13 | 341-699-0XXX | 0000–0999 | Assigned | SONIC TELECOM, LLC - CA | 433E | OKLD MN-PD | CA |
| 2021-11-29 | 341-208-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2021-11-29 | 341-208-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2021-11-24 | 341-420-1XXX | 1000–1999 | Assigned | TELNYX LLC | 073H | OKLD FRTVL | CA |
| 2021-11-21 | 341-212-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | OKLD BKLY | CA |
| 2021-11-21 | 341-900-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | CROCKETT | CA |
| 2021-11-16 | 341-207-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | RICHMOND | CA |
| 2021-11-16 | 341-207-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | RICHMOND | CA |
| 2021-11-16 | 341-899-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD TRNID | CA |
| 2021-11-16 | 341-899-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD TRNID | CA |
| 2021-11-16 | 341-899-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD TRNID | CA |
| 2021-11-08 | 341-899-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | OKLD TRNID | CA |
| 2021-11-02 | 341-204-3XXX | 3000–3999 | Assigned | TELNYX LLC | 073H | FRNK GRNLF | CA |
| 2021-11-01 | 341-208-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2021-11-01 | 341-208-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2021-11-01 | 341-208-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2021-11-01 | 341-208-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2021-11-01 | 341-699-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | OKLD MN-PD | CA |
| 2021-11-01 | 341-699-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | OKLD MN-PD | CA |
| 2021-10-29 | 341-205-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | OKLD MN-PD | CA |
| 2021-10-28 | 341-204-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK GRNLF | CA |
| 2021-10-28 | 341-204-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK GRNLF | CA |
| 2021-10-28 | 341-204-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK GRNLF | CA |
| 2021-10-28 | 341-420-0XXX | 0000–0999 | Assigned | SONIC TELECOM, LLC - CA | 433E | OKLD FRTVL | CA |
| 2021-10-27 | 341-732-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2021-10-27 | 341-732-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2021-10-27 | 341-732-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2021-10-27 | 341-732-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2021-10-26 | 341-207-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2021-10-26 | 341-208-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HAYWARD | CA |
| 2021-10-26 | 341-208-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HAYWARD | CA |
| 2021-10-26 | 341-766-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OKLD BKLY | CA |
| 2021-10-26 | 341-766-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OKLD BKLY | CA |
| 2021-10-25 | 341-203-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2021-10-25 | 341-203-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2021-10-25 | 341-203-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2021-10-25 | 341-203-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2021-10-25 | 341-206-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK MAIN | CA |
| 2021-10-25 | 341-206-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK MAIN | CA |
| 2021-10-25 | 341-206-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK MAIN | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.