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
2023-08-07 251-406-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2023-08-07 251-520-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2023-08-07 251-625-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2023-08-07 251-631-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2023-08-07 251-643-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2023-08-07 251-643-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2023-08-07 251-650-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2023-08-07 251-650-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2023-08-07 251-650-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2023-08-07 251-650-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2023-07-12 251-395-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-07-12 251-395-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-07-12 251-426-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-07-12 251-426-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-07-12 251-426-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-07-12 251-426-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-06-29 251-453-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2023-06-28 251-389-2XXX 2000–2999Assigned BOOST SUBSCRIBERCO L.L.C. 490J CLEAR SPG AL
2023-06-23 251-334-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E URIAH AL
2023-06-23 251-351-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E BEATRICE AL
2023-06-23 251-354-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E GROVE HILL AL
2023-06-23 251-399-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E EVERGREEN AL
2023-06-23 251-412-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MCINTOSH AL
2023-06-23 251-416-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E JACKSON AL
2023-06-23 251-427-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2023-06-23 251-427-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2023-06-23 251-512-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E COFFEEVL AL
2023-06-23 251-519-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E DAUPHIN IS AL
2023-06-23 251-538-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E BREWTON AL
2023-06-23 251-552-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E BAYOUBATRE AL
2023-06-23 251-553-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E IRNGTNSTEL AL
2023-06-23 251-556-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E FINCHBURG AL
2023-06-23 251-557-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E PETERMAN AL
2023-06-23 251-697-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E FLOMATON AL
2023-06-23 251-771-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MELVIN AL
2023-06-23 251-860-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E HUXFORD AL
2023-06-06 251-437-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 FOLEY AL
2023-06-01 251-335-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H MELVIN AL
2023-06-01 251-426-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-06-01 251-426-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-06-01 251-426-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-06-01 251-426-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-06-01 251-426-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-05-26 251-242-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 CHATOM AL
2023-05-12 251-349-8XXX 8000–8999Assigned BOOST SUBSCRIBERCO L.L.C. 490J MOBILE AL
2023-05-11 251-383-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2023-05-11 251-383-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2023-05-11 251-396-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-05-11 251-396-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-05-11 251-448-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MCCULLOUGH 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.