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
2022-03-30 251-553-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E IRNGTNSTEL AL
2022-03-30 251-553-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E IRNGTNSTEL AL
2022-03-30 251-556-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E FINCHBURG AL
2022-03-30 251-556-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E FINCHBURG AL
2022-03-30 251-557-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E PETERMAN AL
2022-03-30 251-557-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E PETERMAN AL
2022-03-28 251-386-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J MOBILE AL
2022-03-24 251-384-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MOBILE AL
2022-03-24 251-384-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MOBILE AL
2022-03-23 251-388-0XXX 0000–0999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2022-03-23 251-388-1XXX 1000–1999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2022-03-23 251-388-2XXX 2000–2999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2022-03-23 251-388-4XXX 4000–4999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2022-03-23 251-388-5XXX 5000–5999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2022-03-23 251-388-7XXX 7000–7999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2022-03-23 251-388-8XXX 8000–8999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2022-03-23 251-388-9XXX 9000–9999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2022-03-09 251-383-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2022-03-09 251-383-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2022-03-09 251-384-0XXX 0000–0999Assigned METROPCS, INC. 5562 MOBILE AL
2022-03-09 251-384-1XXX 1000–1999Assigned METROPCS, INC. 5562 MOBILE AL
2022-03-09 251-384-5XXX 5000–5999Assigned METROPCS, INC. 5562 MOBILE AL
2022-03-09 251-384-9XXX 9000–9999Assigned METROPCS, INC. 5562 MOBILE AL
2022-03-09 251-388-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E ATMORE AL
2022-03-09 251-388-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E ATMORE AL
2022-02-23 251-297-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E FLOMATON AL
2022-02-23 251-314-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E BREWTON AL
2022-02-23 251-314-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E BREWTON AL
2022-02-23 251-315-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E EVERGREEN AL
2022-02-23 251-325-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2022-02-23 251-335-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MELVIN AL
2022-02-23 251-347-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E URIAH AL
2022-02-23 251-353-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E PETERMAN AL
2022-02-23 251-356-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E FINCHBURG AL
2022-02-23 251-360-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E GROVE HILL AL
2022-02-23 251-364-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E JACKSON AL
2022-02-23 251-365-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2022-02-23 251-365-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2022-02-23 251-372-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2022-02-23 251-372-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2022-02-23 251-448-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E MCCULLOUGH AL
2022-02-23 251-505-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E FRISCOCITY AL
2022-02-23 251-505-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E FRISCOCITY AL
2022-02-23 251-519-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2022-02-23 251-521-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E GRAND BAY AL
2022-02-23 251-521-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E GRAND BAY AL
2022-02-23 251-522-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E COFFEEVL AL
2022-02-23 251-523-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2022-02-23 251-523-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2022-02-23 251-566-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E GOSPORT 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.