NumberResearchRecent thousands-block assignments
7 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 628
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 |
|---|---|---|---|---|---|---|---|
| 2022-07-14 | 628-587-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NOVATO | CA |
| 2022-07-13 | 628-283-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC MT-EV | CA |
| 2022-07-13 | 628-283-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC MT-EV | CA |
| 2022-07-13 | 628-488-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2022-07-13 | 628-488-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2022-07-13 | 628-488-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2022-07-13 | 628-488-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2022-07-13 | 628-488-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2022-07-13 | 628-488-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC CNTRL | CA |
| 2022-06-15 | 628-377-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | IGNACIO | CA |
| 2022-05-27 | 628-789-9XXX | 9000–9999 | Assigned | FRACTEL, LLC | 965H | SNFC CNTRL | CA |
| 2022-05-24 | 628-386-3XXX | 3000–3999 | Assigned | FRACTEL, LLC | 965H | CORTEMADRA | CA |
| 2022-04-12 | 628-283-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | SNFC MT-EV | CA |
| 2022-04-12 | 628-313-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN RAFAEL | CA |
| 2022-04-12 | 628-313-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SAN RAFAEL | CA |
| 2022-04-12 | 628-677-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | MILLVALLEY | CA |
| 2022-04-01 | 628-283-0XXX | 0000–0999 | Assigned | SONIC TELECOM, LLC - CA | 433E | SNFC MT-EV | CA |
| 2022-03-28 | 628-282-9XXX | 9000–9999 | Assigned | AT&T - LOCAL | 7421 | SNFC JUNPR | CA |
| 2022-03-18 | 628-587-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NOVATO | CA |
| 2022-03-16 | 628-313-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAN RAFAEL | CA |
| 2022-03-04 | 628-278-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC MT-EV | CA |
| 2022-03-04 | 628-278-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC MT-EV | CA |
| 2022-03-04 | 628-278-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC MT-EV | CA |
| 2022-02-22 | 628-488-8XXX | 8000–8999 | Assigned | FRACTEL, LLC | 965H | SNFC CNTRL | CA |
| 2022-01-24 | 628-313-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SAN RAFAEL | CA |
| 2022-01-14 | 628-282-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC JUNPR | CA |
| 2022-01-14 | 628-282-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC JUNPR | CA |
| 2022-01-10 | 628-278-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2022-01-10 | 628-278-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2022-01-10 | 628-278-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2022-01-10 | 628-278-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SNFC MT-EV | CA |
| 2022-01-09 | 628-866-5XXX | 5000–5999 | Assigned | TON80 COMMUNICATIONS, LLC | 516J | BELVEDERE | CA |
| 2022-01-07 | 628-283-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC MT-EV | CA |
| 2022-01-07 | 628-283-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | SNFC MT-EV | CA |
| 2021-12-17 | 628-399-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SNFC MT-EV | CA |
| 2021-12-15 | 628-345-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | POINTREYES | CA |
| 2021-12-08 | 628-724-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | BELVEDERE | CA |
| 2021-12-08 | 628-866-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | BELVEDERE | CA |
| 2021-12-07 | 628-667-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAN RAFAEL | CA |
| 2021-11-30 | 628-299-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SNFC JUNPR | CA |
| 2021-11-30 | 628-299-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SNFC JUNPR | CA |
| 2021-11-22 | 628-313-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2021-11-22 | 628-313-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2021-11-22 | 628-313-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2021-11-22 | 628-313-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2021-11-16 | 628-345-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | POINTREYES | CA |
| 2021-11-16 | 628-358-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | SNFC CNTRL | CA |
| 2021-11-15 | 628-587-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NOVATO | CA |
| 2021-11-15 | 628-587-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | NOVATO | CA |
| 2021-11-15 | 628-842-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CORTEMADRA | 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.