NumberResearchRecent thousands-block assignments
3,379 blocks assigned in May 2026 · from the daily NANPA thousands-block report, 09/18/2026
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, May 2026
New assignments by month
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| Assigned | Block | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 2026-05-20 | 557-444-7XXX | ONVOY, LLC - MO | 093F | CREVECOEUR | MO |
| 2026-05-20 | 559-980-1XXX | 8X8, INC. | 193E | FRESNO | CA |
| 2026-05-20 | 570-456-4XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | MOOSIC | PA |
| 2026-05-20 | 571-656-8XXX | ONVOY, LLC - VA | 138E | TRIANGLE | VA |
| 2026-05-20 | 571-671-4XXX | ONVOY, LLC - VA | 138E | ENGLESIDE | VA |
| 2026-05-20 | 571-698-3XXX | ONVOY, LLC - VA | 138E | ARCOLA | VA |
| 2026-05-20 | 571-703-7XXX | ONVOY, LLC - VA | 138E | DALE CITY | VA |
| 2026-05-20 | 571-703-8XXX | ONVOY, LLC - VA | 138E | DALE CITY | VA |
| 2026-05-20 | 571-739-3XXX | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2026-05-20 | 571-739-4XXX | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2026-05-20 | 571-748-1XXX | ONVOY, LLC - VA | 138E | WSNGTNZN19 | VA |
| 2026-05-20 | 571-749-0XXX | ONVOY, LLC - VA | 138E | WSNGTNZN17 | VA |
| 2026-05-20 | 571-749-3XXX | ONVOY, LLC - VA | 138E | WSNGTNZN17 | VA |
| 2026-05-20 | 571-753-2XXX | ONVOY, LLC - VA | 138E | BRADDOCK | VA |
| 2026-05-20 | 571-753-4XXX | ONVOY, LLC - VA | 138E | BRADDOCK | VA |
| 2026-05-20 | 571-757-0XXX | ONVOY, LLC - VA | 138E | WSNGTNZN19 | VA |
| 2026-05-20 | 571-757-1XXX | ONVOY, LLC - VA | 138E | WSNGTNZN19 | VA |
| 2026-05-20 | 571-759-0XXX | ONVOY, LLC - VA | 138E | HERNDON | VA |
| 2026-05-20 | 571-760-8XXX | ONVOY, LLC - VA | 138E | WSNGTNZN08 | VA |
| 2026-05-20 | 571-764-0XXX | ONVOY, LLC - VA | 138E | OCCOQUAN | VA |
| 2026-05-20 | 571-850-3XXX | ONVOY, LLC - VA | 138E | LEESBURG | VA |
| 2026-05-20 | 571-850-4XXX | ONVOY, LLC - VA | 138E | LEESBURG | VA |
| 2026-05-20 | 580-557-4XXX | T-MOBILE USA, INC. | 6529 | TONKAWA | OK |
| 2026-05-20 | 580-615-5XXX | T-MOBILE USA, INC. | 6529 | DURANT | OK |
| 2026-05-20 | 608-954-1XXX | T-MOBILE USA, INC. | 6529 | MUSCODA | WI |
| 2026-05-20 | 609-920-0XXX | ONVOY, LLC - NJ | 637C | BORDENTOWN | NJ |
| 2026-05-20 | 618-270-1XXX | T-MOBILE USA, INC. | 6529 | WAYNE CITY | IL |
| 2026-05-20 | 618-853-5XXX | T-MOBILE USA, INC. | 6529 | EVANSVILLE | IL |
| 2026-05-20 | 620-487-8XXX | ONVOY, LLC - KS | 205F | EMPORIA | KS |
| 2026-05-20 | 626-783-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ALHAMBRA | CA |
| 2026-05-20 | 626-783-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ALHAMBRA | CA |
| 2026-05-20 | 626-783-8XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ALHAMBRA | CA |
| 2026-05-20 | 636-267-4XXX | ONVOY, LLC - MO | 093F | ANTONIA | MO |
| 2026-05-20 | 636-268-5XXX | ONVOY, LLC - MO | 093F | CHESTERFLD | MO |
| 2026-05-20 | 640-267-3XXX | ONVOY, LLC - NJ | 637C | CRANBURY | NJ |
| 2026-05-20 | 640-272-9XXX | ONVOY, LLC - NJ | 637C | CAPMAYCTHS | NJ |
| 2026-05-20 | 645-529-6XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PERRINE | FL |
| 2026-05-20 | 645-529-7XXX | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | PERRINE | FL |
| 2026-05-20 | 657-535-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | YORBALINDA | CA |
| 2026-05-20 | 657-783-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | YORBALINDA | CA |
| 2026-05-20 | 657-783-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | YORBALINDA | CA |
| 2026-05-20 | 657-783-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | YORBALINDA | CA |
| 2026-05-20 | 657-783-6XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | YORBALINDA | CA |
| 2026-05-20 | 657-865-0XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-20 | 657-865-1XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-20 | 657-865-2XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-20 | 657-865-3XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-20 | 657-865-4XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-20 | 657-865-5XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
| 2026-05-20 | 657-865-6XXX | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANAHEIM | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/18/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.