NumberResearchRecent thousands-block assignments
15 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 341
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 |
|---|---|---|---|---|---|---|---|
| 2022-03-04 | 341-216-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRNK MAIN | CA |
| 2022-03-04 | 341-221-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HAYWARD | CA |
| 2022-03-04 | 341-221-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HAYWARD | CA |
| 2022-03-03 | 341-221-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | HAYWARD | CA |
| 2022-03-03 | 341-688-2XXX | 2000–2999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OKLD BKLY | CA |
| 2022-02-28 | 341-221-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HAYWARD | CA |
| 2022-02-28 | 341-221-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HAYWARD | CA |
| 2022-02-28 | 341-221-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | HAYWARD | CA |
| 2022-02-22 | 341-204-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | FRNK GRNLF | CA |
| 2022-02-22 | 341-216-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK MAIN | CA |
| 2022-02-22 | 341-216-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK MAIN | CA |
| 2022-02-22 | 341-216-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK MAIN | CA |
| 2022-02-22 | 341-786-7XXX | 7000–7999 | Assigned | FRACTEL, LLC | 965H | FRNK MAIN | CA |
| 2022-02-18 | 341-206-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK MAIN | CA |
| 2022-02-18 | 341-215-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2022-02-18 | 341-215-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2022-02-18 | 341-215-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2022-02-18 | 341-688-8XXX | 8000–8999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | OKLD BKLY | CA |
| 2022-02-04 | 341-215-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2022-02-04 | 341-215-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2022-02-02 | 341-207-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2022-02-02 | 341-207-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2022-02-02 | 341-207-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RICHMOND | CA |
| 2022-01-31 | 341-209-8XXX | 8000–8999 | Assigned | TELNYX LLC | 073H | FRNK OLIVR | CA |
| 2022-01-28 | 341-210-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OKLD ALMD | CA |
| 2022-01-26 | 341-210-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | OKLD ALMD | CA |
| 2022-01-26 | 341-441-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | OKLD MN-PD | CA |
| 2022-01-24 | 341-206-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | FRNK MAIN | CA |
| 2022-01-24 | 341-207-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RICHMOND | CA |
| 2022-01-24 | 341-209-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | FRNK OLIVR | CA |
| 2022-01-16 | 341-837-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | ELSBR-PINL | CA |
| 2022-01-14 | 341-209-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | FRNK OLIVR | CA |
| 2022-01-14 | 341-209-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | FRNK OLIVR | CA |
| 2022-01-14 | 341-441-0XXX | 0000–0999 | Assigned | SONIC TELECOM, LLC - CA | 433E | OKLD MN-PD | CA |
| 2022-01-14 | 341-441-4XXX | 4000–4999 | Assigned | SONIC TELECOM, LLC - CA | 433E | OKLD MN-PD | CA |
| 2022-01-13 | 341-420-4XXX | 4000–4999 | Assigned | SONIC TELECOM, LLC - CA | 433E | OKLD FRTVL | CA |
| 2022-01-10 | 341-209-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK OLIVR | CA |
| 2022-01-10 | 341-209-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK OLIVR | CA |
| 2022-01-10 | 341-209-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK OLIVR | CA |
| 2022-01-10 | 341-209-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK OLIVR | CA |
| 2022-01-10 | 341-209-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | FRNK OLIVR | CA |
| 2022-01-10 | 341-213-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD MN-PD | CA |
| 2022-01-10 | 341-213-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD MN-PD | CA |
| 2022-01-10 | 341-213-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD MN-PD | CA |
| 2022-01-10 | 341-837-4XXX | 4000–4999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | ELSBR-PINL | CA |
| 2022-01-09 | 341-699-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD MN-PD | CA |
| 2021-12-28 | 341-207-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | RICHMOND | CA |
| 2021-12-28 | 341-208-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HAYWARD | CA |
| 2021-12-28 | 341-208-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HAYWARD | CA |
| 2021-12-23 | 341-207-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RICHMOND | CA |
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.