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
2021-10-25 251-988-7XXX 7000–7999Assigned METROPCS, INC. 5562 FOLEY AL
2021-10-22 251-335-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E MELVIN AL
2021-10-19 251-349-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2021-10-19 251-349-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2021-10-19 251-349-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2021-10-19 251-373-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E MOBILE AL
2021-10-19 251-373-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MOBILE AL
2021-10-19 251-373-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MOBILE AL
2021-10-14 251-430-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H COFFEEVL AL
2021-10-14 251-430-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H COFFEEVL AL
2021-10-14 251-505-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H FRISCOCITY AL
2021-10-14 251-505-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H FRISCOCITY AL
2021-10-14 251-606-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H PINE APPLE AL
2021-10-14 251-606-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PINE APPLE AL
2021-10-14 251-830-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H BEATRICE AL
2021-10-14 251-830-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H BEATRICE AL
2021-10-14 251-840-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E EXCEL AL
2021-10-14 251-840-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E EXCEL AL
2021-10-14 251-860-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HUXFORD AL
2021-10-14 251-860-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H HUXFORD AL
2021-10-14 251-870-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MONROEVL AL
2021-10-14 251-870-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MONROEVL AL
2021-10-14 251-890-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E REPTON AL
2021-10-14 251-890-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E REPTON AL
2021-10-13 251-280-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H FLOMATON AL
2021-10-13 251-280-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H FLOMATON AL
2021-10-13 251-347-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H URIAH AL
2021-10-13 251-347-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H URIAH AL
2021-10-13 251-353-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H PETERMAN AL
2021-10-13 251-353-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H PETERMAN AL
2021-10-13 251-448-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MCCULLOUGH AL
2021-10-13 251-448-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E MCCULLOUGH AL
2021-10-13 251-449-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H FINCHBURG AL
2021-10-13 251-449-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H FINCHBURG AL
2021-10-12 251-346-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H EVERGREEN AL
2021-10-12 251-346-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H EVERGREEN AL
2021-10-06 251-820-8XXX 8000–8999Assigned METROPCS, INC. 5562 ATMORE AL
2021-09-23 251-228-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 FOLEY AL
2021-09-22 251-931-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CLEAR SPG AL
2021-09-22 251-931-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CLEAR SPG AL
2021-09-16 251-361-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-09-16 251-361-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-09-16 251-361-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-09-16 251-361-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MOBILE AL
2021-09-14 251-373-1XXX 1000–1999Assigned IP HORIZON LLC 515J MOBILE AL
2021-09-03 251-521-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E GRAND BAY AL
2021-09-03 251-521-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E GRAND BAY AL
2021-09-03 251-523-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2021-09-03 251-523-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2021-09-02 251-297-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H 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.