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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2020-06-05 251-326-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2020-06-05 251-326-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2020-06-05 251-326-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2020-06-05 251-326-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2020-06-05 251-326-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2020-06-05 251-326-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2020-05-29 251-325-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BAYMINETTE AL
2020-05-29 251-325-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BAYMINETTE AL
2020-05-26 251-239-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BAYMINETTE AL
2020-05-26 251-268-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2020-05-26 251-291-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E MELVIN AL
2020-05-26 251-291-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MELVIN AL
2020-05-26 251-306-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E IRNGTNSTEL AL
2020-05-26 251-309-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2020-05-26 251-309-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2020-05-26 251-312-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E REPTON AL
2020-05-26 251-312-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E REPTON AL
2020-05-26 251-313-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2020-05-26 251-313-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2020-05-26 251-313-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2020-05-26 251-957-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E IRNGTNSTEL AL
2020-05-13 251-291-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MELVIN AL
2020-05-05 251-360-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E GROVE HILL AL
2020-05-04 251-292-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E MELVIN AL
2020-05-04 251-292-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E MELVIN AL
2020-05-04 251-292-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MELVIN AL
2020-04-29 251-651-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BAYMINETTE AL
2020-04-28 251-200-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 FOLEY AL
2020-04-28 251-323-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-04-28 251-323-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-04-28 251-323-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-04-28 251-323-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-04-28 251-323-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-04-28 251-323-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-04-28 251-323-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-04-28 251-323-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-04-28 251-323-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-04-28 251-323-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-04-09 251-319-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 MOBILE AL
2020-04-09 251-862-8XXX 8000–8999Assigned TELNYX LLC 073H URIAH AL
2020-04-08 251-244-5XXX 5000–5999Assigned TELNYX LLC 073H PETERMAN AL
2020-04-08 251-299-5XXX 5000–5999Assigned TELNYX LLC 073H MT VERNON AL
2020-04-08 251-306-4XXX 4000–4999Assigned TELNYX LLC 073H IRNGTNSTEL AL
2020-04-08 251-312-0XXX 0000–0999Assigned TELNYX LLC 073H REPTON AL
2020-04-08 251-320-7XXX 7000–7999Assigned TELNYX LLC 073H JACKSON AL
2020-04-08 251-357-2XXX 2000–2999Assigned TELNYX LLC 073H HUXFORD AL
2020-04-08 251-418-9XXX 9000–9999Assigned TELNYX LLC 073H MCINTOSH AL
2020-04-08 251-551-8XXX 8000–8999Assigned TELNYX LLC 073H PINE APPLE AL
2020-04-08 251-577-0XXX 0000–0999Assigned TELNYX LLC 073H MCCULLOUGH AL
2020-04-08 251-732-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E FLOMATON 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.