NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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 251
NEW CINGULAR WIRELESS PCS, LLC - GA 6
ONVOY, LLC - AL 3
WIDE VOICE, LLC - AL 2
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2022-01-18 251-381-5XXX 5000–5999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2022-01-18 251-381-6XXX 6000–6999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2022-01-18 251-381-7XXX 7000–7999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2022-01-18 251-381-8XXX 8000–8999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2022-01-18 251-381-9XXX 9000–9999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2022-01-18 251-655-4XXX 4000–4999Assigned METROPCS, INC. 5562 ATMORE AL
2022-01-18 251-820-7XXX 7000–7999Assigned METROPCS, INC. 5562 ATMORE AL
2022-01-11 251-201-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2022-01-11 251-201-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2022-01-06 251-364-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H JACKSON AL
2022-01-06 251-364-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H JACKSON AL
2021-12-30 251-650-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E MOBILE AL
2021-12-30 251-650-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MOBILE AL
2021-12-28 251-271-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-271-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-271-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-271-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-271-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-271-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-271-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-271-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-324-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-324-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-324-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-28 251-324-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2021-12-23 251-365-1XXX 1000–1999Assigned TELNYX LLC 073H CITRONELLE AL
2021-12-21 251-505-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H FRISCOCITY AL
2021-12-21 251-505-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H FRISCOCITY AL
2021-12-17 251-820-5XXX 5000–5999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2021-12-17 251-820-6XXX 6000–6999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2021-12-17 251-880-4XXX 4000–4999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2021-12-17 251-880-5XXX 5000–5999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2021-12-13 251-870-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MONROEVL AL
2021-12-03 251-381-2XXX 2000–2999Assigned NUSO, LLC 478J MOBILE AL
2021-11-22 251-521-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F GRAND BAY AL
2021-11-18 251-280-8XXX 8000–8999Assigned TELNYX LLC 073H FLOMATON AL
2021-11-18 251-374-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-374-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-374-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-374-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-376-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-376-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-376-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-376-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-376-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-376-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-376-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-376-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-376-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2021-11-18 251-376-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL

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.