NumberResearchRecent thousands-block assignments
4,369 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/23/2026
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
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 |
|---|---|---|---|---|---|---|---|
| 2026-04-29 | 363-220-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN05 | NY |
| 2026-04-29 | 363-220-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN05 | NY |
| 2026-04-29 | 363-220-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | NASSAUZN05 | NY |
| 2026-04-29 | 369-225-3XXX | 3000–3999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | WINDSOR | CA |
| 2026-04-29 | 380-277-4XXX | 4000–4999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | HILLIARD | OH |
| 2026-04-29 | 401-264-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | PORTSMOUTH | RI |
| 2026-04-29 | 401-446-5XXX | 5000–5999 | Assigned | AHOI LLC | 883K | NARRAGNSTT | RI |
| 2026-04-29 | 408-208-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MORGANHILL | CA |
| 2026-04-29 | 409-327-8XXX | 8000–8999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | LA BELLE | TX |
| 2026-04-29 | 409-357-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | CHINA | TX |
| 2026-04-29 | 413-666-4XXX | 4000–4999 | Assigned | AHOI LLC | 883K | GRANVILLE | MA |
| 2026-04-29 | 413-724-6XXX | 6000–6999 | Assigned | AHOI LLC | 883K | WILLIAMSBG | MA |
| 2026-04-29 | 413-899-9XXX | 9000–9999 | Assigned | AHOI LLC | 883K | SO DEERFLD | MA |
| 2026-04-29 | 423-249-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | FORK RIDGE | TN |
| 2026-04-29 | 423-527-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | SODDYDAISY | TN |
| 2026-04-29 | 423-688-8XXX | 8000–8999 | Assigned | AHOI LLC | 883K | SNEEDVILLE | TN |
| 2026-04-29 | 425-425-1XXX | 1000–1999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | EVERETT | WA |
| 2026-04-29 | 430-281-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | CARTHAGE | TX |
| 2026-04-29 | 430-430-1XXX | 1000–1999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | QUINLAN | TX |
| 2026-04-29 | 432-321-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | MARATHON | TX |
| 2026-04-29 | 432-329-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | ALPINE | TX |
| 2026-04-29 | 435-365-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HEBER CITY | UT |
| 2026-04-29 | 435-365-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | HEBER CITY | UT |
| 2026-04-29 | 435-366-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | ST GEORGE | UT |
| 2026-04-29 | 435-366-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | ST GEORGE | UT |
| 2026-04-29 | 440-440-3XXX | 3000–3999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | HILLCREST | OH |
| 2026-04-29 | 447-205-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - IL | 6115 | GREENUP | IL |
| 2026-04-29 | 447-254-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | ATHENS | IL |
| 2026-04-29 | 447-270-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | FOWLER | IL |
| 2026-04-29 | 447-832-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | OAKWOOD | IL |
| 2026-04-29 | 505-233-3XXX | 3000–3999 | Assigned | AHOI LLC | 883K | GRANTS | NM |
| 2026-04-29 | 517-218-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | PORTLAND | MI |
| 2026-04-29 | 530-997-2XXX | 2000–2999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | MARYSVILLE | CA |
| 2026-04-29 | 531-340-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | CLARKSON | NE |
| 2026-04-29 | 551-433-6XXX | 6000–6999 | Assigned | AHOI LLC | 883K | HACKENSACK | NJ |
| 2026-04-29 | 551-435-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | BAYONNE | NJ |
| 2026-04-29 | 559-605-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TULARE | CA |
| 2026-04-29 | 559-608-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISALIA | CA |
| 2026-04-29 | 559-887-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TULARE | CA |
| 2026-04-29 | 559-985-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2026-04-29 | 559-985-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2026-04-29 | 559-985-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2026-04-29 | 561-854-4XXX | 4000–4999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - FL | 8300 | BOCA RATON | FL |
| 2026-04-29 | 567-435-7XXX | 7000–7999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | FINDLAY | OH |
| 2026-04-29 | 573-277-4XXX | 4000–4999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | FULTON | MO |
| 2026-04-29 | 573-601-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | KENNETT | MO |
| 2026-04-29 | 573-835-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - MO | 4932 | NEWFLORNCE | MO |
| 2026-04-29 | 575-438-4XXX | 4000–4999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | LAS CRUCES | NM |
| 2026-04-29 | 582-999-7XXX | 7000–7999 | Assigned | AHOI LLC | 883K | BERLIN | PA |
| 2026-04-29 | 605-888-1XXX | 1000–1999 | Assigned | EXIANT COMMUNICATIONS LLC | 114J | CHAMBERLAN | SD |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/23/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.