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 |
|---|---|---|---|---|---|
| 2026-05-05 | 363-219-2XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN07 | NY |
| 2026-05-05 | 363-219-3XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN07 | NY |
| 2026-05-05 | 363-223-9XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN07 | NY |
| 2026-05-05 | 363-800-3XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN07 | NY |
| 2026-05-05 | 363-800-4XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN07 | NY |
| 2026-05-05 | 363-800-5XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN07 | NY |
| 2026-05-05 | 363-800-6XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN07 | NY |
| 2026-05-05 | 363-800-7XXX | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN07 | NY |
| 2026-05-05 | 417-584-7XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2026-05-05 | 417-584-8XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2026-05-05 | 417-584-9XXX | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | SPRINGFLD | MO |
| 2026-05-05 | 435-407-0XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | TABIONA | UT |
| 2026-05-05 | 435-407-1XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | TABIONA | UT |
| 2026-05-05 | 435-407-2XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | TABIONA | UT |
| 2026-05-05 | 435-407-3XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | TABIONA | UT |
| 2026-05-05 | 435-407-4XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | TABIONA | UT |
| 2026-05-05 | 435-407-5XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | TABIONA | UT |
| 2026-05-05 | 435-407-6XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | TABIONA | UT |
| 2026-05-05 | 435-407-7XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | TABIONA | UT |
| 2026-05-05 | 435-407-8XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | TABIONA | UT |
| 2026-05-05 | 435-407-9XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | TABIONA | UT |
| 2026-05-05 | 435-408-0XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | ALTAMONT | UT |
| 2026-05-05 | 435-408-1XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | ALTAMONT | UT |
| 2026-05-05 | 435-408-2XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | ALTAMONT | UT |
| 2026-05-05 | 435-408-3XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | ALTAMONT | UT |
| 2026-05-05 | 435-408-4XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | ALTAMONT | UT |
| 2026-05-05 | 435-408-5XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | ALTAMONT | UT |
| 2026-05-05 | 435-408-6XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | ALTAMONT | UT |
| 2026-05-05 | 435-408-7XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | ALTAMONT | UT |
| 2026-05-05 | 435-408-8XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | ALTAMONT | UT |
| 2026-05-05 | 435-408-9XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | ALTAMONT | UT |
| 2026-05-05 | 435-410-0XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | RANDLETT | UT |
| 2026-05-05 | 435-410-1XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | RANDLETT | UT |
| 2026-05-05 | 435-410-2XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | RANDLETT | UT |
| 2026-05-05 | 435-410-3XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | RANDLETT | UT |
| 2026-05-05 | 435-410-4XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | RANDLETT | UT |
| 2026-05-05 | 435-410-5XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | RANDLETT | UT |
| 2026-05-05 | 435-410-6XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | RANDLETT | UT |
| 2026-05-05 | 435-410-7XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | RANDLETT | UT |
| 2026-05-05 | 435-410-8XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | RANDLETT | UT |
| 2026-05-05 | 435-410-9XXX | UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS | 1772 | RANDLETT | UT |
| 2026-05-05 | 504-639-6XXX | TELEPORT COMMUNICATIONS AMERICA LA - LLC | 653C | NEWORLEANS | LA |
| 2026-05-05 | 504-639-8XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | NEWORLEANS | LA |
| 2026-05-05 | 504-639-9XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | NEWORLEANS | LA |
| 2026-05-05 | 504-981-6XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | NEWORLEANS | LA |
| 2026-05-05 | 504-981-7XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | NEWORLEANS | LA |
| 2026-05-05 | 504-981-8XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | NEWORLEANS | LA |
| 2026-05-05 | 504-981-9XXX | BOOST SUBSCRIBERCO L.L.C. | 490J | NEWORLEANS | LA |
| 2026-05-05 | 505-656-3XXX | HD CARRIER LLC | 321J | ALBUQURQUE | NM |
| 2026-05-05 | 505-656-4XXX | HD CARRIER LLC | 321J | ALBUQURQUE | NM |
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.