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 |
|---|---|---|---|---|---|---|---|
| 2026-09-17 | 628-308-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNFC MT-EV | CA |
| 2026-09-17 | 628-308-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SNFC MT-EV | CA |
| 2026-09-15 | 628-315-7XXX | 7000–7999 | Assigned | OPENTACT INC. | 824J | BELVEDERE | CA |
| 2026-09-14 | 628-272-6XXX | 6000–6999 | Assigned | TELNYX LLC | 073H | POINTREYES | CA |
| 2026-08-21 | 628-315-0XXX | 0000–0999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | BELVEDERE | CA |
| 2026-08-21 | 628-315-4XXX | 4000–4999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | BELVEDERE | CA |
| 2026-08-21 | 628-315-5XXX | 5000–5999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | BELVEDERE | CA |
| 2026-08-20 | 628-320-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2026-08-20 | 628-320-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2026-08-19 | 628-235-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2026-08-19 | 628-284-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC CNTRL | CA |
| 2026-08-07 | 628-296-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SNFC MT-EV | CA |
| 2026-08-07 | 628-330-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2026-08-07 | 628-330-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2026-07-30 | 628-310-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | BELVEDERE | CA |
| 2026-07-30 | 628-320-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SNFC MT-EV | CA |
| 2026-07-30 | 628-338-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SNFC MT-EV | CA |
| 2026-07-29 | 628-330-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SAN RAFAEL | CA |
| 2026-07-09 | 628-254-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SAUSALITO | CA |
| 2026-07-08 | 628-291-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | MILLVALLEY | CA |
| 2026-07-08 | 628-291-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | MILLVALLEY | CA |
| 2026-07-08 | 628-301-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | NOVATO | CA |
| 2026-07-08 | 628-301-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | NOVATO | CA |
| 2026-07-08 | 628-302-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | CORTEMADRA | CA |
| 2026-07-08 | 628-307-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | IGNACIO | CA |
| 2026-07-08 | 628-308-2XXX | 2000–2999 | Assigned | SONIC TELECOM, LLC - CA | 433E | SNFC MT-EV | CA |
| 2026-06-30 | 628-296-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNFC MT-EV | CA |
| 2026-06-30 | 628-348-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | BELVEDERE | CA |
| 2026-06-26 | 628-228-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2026-06-26 | 628-316-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2026-06-26 | 628-330-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2026-06-26 | 628-330-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2026-06-26 | 628-330-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2026-06-26 | 628-895-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2026-06-17 | 628-256-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SNFC MT-EV | CA |
| 2026-06-04 | 628-327-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAN RAFAEL | CA |
| 2026-06-04 | 628-667-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAN RAFAEL | CA |
| 2026-06-01 | 628-276-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2026-06-01 | 628-312-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2026-06-01 | 628-312-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2026-06-01 | 628-312-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2026-06-01 | 628-312-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2026-06-01 | 628-312-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SNFC CNTRL | CA |
| 2026-05-22 | 628-305-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | SAN RAFAEL | CA |
| 2026-05-12 | 628-327-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SAN RAFAEL | CA |
| 2026-05-07 | 628-301-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NOVATO | CA |
| 2026-05-06 | 628-244-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | BELVEDERE | CA |
| 2026-05-04 | 628-726-7XXX | 7000–7999 | Assigned | HD CARRIER LLC | 321J | SNFC CNTRL | CA |
| 2026-04-17 | 628-291-4XXX | 4000–4999 | Assigned | VOIP INNOVATIONS, LLC | 597F | MILLVALLEY | CA |
| 2026-04-15 | 628-301-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | NOVATO | 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.