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 |
|---|---|---|---|---|---|---|---|
| 2024-09-11 | 341-250-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2024-09-09 | 341-254-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD BKLY | CA |
| 2024-09-06 | 341-253-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD BKLY | CA |
| 2024-08-29 | 341-251-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2024-08-29 | 341-251-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ELSBR-PINL | CA |
| 2024-08-19 | 341-240-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | HAYWARD | CA |
| 2024-08-15 | 341-252-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRNK MAIN | CA |
| 2024-08-15 | 341-252-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRNK MAIN | CA |
| 2024-08-15 | 341-252-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRNK MAIN | CA |
| 2024-08-15 | 341-252-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRNK MAIN | CA |
| 2024-08-12 | 341-251-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ELSBR-PINL | CA |
| 2024-07-29 | 341-246-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRNK OLIVR | CA |
| 2024-07-29 | 341-246-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRNK OLIVR | CA |
| 2024-07-29 | 341-246-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRNK OLIVR | CA |
| 2024-07-29 | 341-250-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2024-07-29 | 341-250-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2024-07-29 | 341-250-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2024-07-29 | 341-250-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | OKLD FRTVL | CA |
| 2024-07-29 | 341-253-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OKLD BKLY | CA |
| 2024-07-29 | 341-253-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OKLD BKLY | CA |
| 2024-07-29 | 341-253-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OKLD BKLY | CA |
| 2024-07-29 | 341-253-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OKLD BKLY | CA |
| 2024-07-22 | 341-200-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HRCUL-RODE | CA |
| 2024-07-22 | 341-244-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OKLD TRNID | CA |
| 2024-07-22 | 341-250-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | OKLD FRTVL | CA |
| 2024-07-15 | 341-252-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | FRNK MAIN | CA |
| 2024-07-03 | 341-226-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | OKLD FRTVL | CA |
| 2024-07-03 | 341-229-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | OKLD MN-PD | CA |
| 2024-07-03 | 341-232-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2024-07-03 | 341-239-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | OKLD ALMD | CA |
| 2024-07-03 | 341-240-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2024-07-03 | 341-243-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | HRCUL-RODE | CA |
| 2024-07-03 | 341-244-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | OKLD TRNID | CA |
| 2024-07-03 | 341-244-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | OKLD TRNID | CA |
| 2024-07-03 | 341-245-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | HAYWARD | CA |
| 2024-07-03 | 341-247-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | RICHMOND | CA |
| 2024-07-03 | 341-251-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | ELSBR-PINL | CA |
| 2024-07-03 | 341-251-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | ELSBR-PINL | CA |
| 2024-07-03 | 341-344-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | OKLD TRNID | CA |
| 2024-07-03 | 341-799-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | RICHMOND | CA |
| 2024-06-18 | 341-229-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | OKLD MN-PD | CA |
| 2024-06-18 | 341-229-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | OKLD MN-PD | CA |
| 2024-06-18 | 341-253-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | OKLD BKLY | CA |
| 2024-06-18 | 341-253-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | OKLD BKLY | CA |
| 2024-06-18 | 341-253-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | OKLD BKLY | CA |
| 2024-06-18 | 341-766-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | OKLD BKLY | CA |
| 2024-06-12 | 341-243-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HRCUL-RODE | CA |
| 2024-06-11 | 341-250-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | OKLD FRTVL | CA |
| 2024-06-05 | 341-246-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | FRNK OLIVR | CA |
| 2024-06-05 | 341-246-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | FRNK OLIVR | 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.