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
2023-05-11 251-451-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E GOSPORT AL
2023-05-11 251-521-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E GRAND BAY AL
2023-05-11 251-523-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2023-05-11 251-551-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E PINE APPLE AL
2023-05-11 251-571-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E BAYMINETTE AL
2023-05-11 251-572-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E FRISCOCITY AL
2023-05-11 251-678-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E ATMORE AL
2023-04-26 251-403-3XXX 3000–3999Assigned BOOST SUBSCRIBERCO L.L.C. 490J FOLEY AL
2023-04-18 251-247-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H JACKSON AL
2023-04-18 251-678-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E ATMORE AL
2023-04-18 251-710-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E ATMORE AL
2023-04-18 251-710-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E ATMORE AL
2023-04-18 251-710-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E ATMORE AL
2023-04-04 251-247-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E JACKSON AL
2023-04-04 251-383-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2023-04-04 251-396-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E MOBILE AL
2023-03-31 251-397-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H DAUPHIN IS AL
2023-03-31 251-523-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H MT VERNON AL
2023-03-31 251-552-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BAYOUBATRE AL
2023-03-31 251-553-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H IRNGTNSTEL AL
2023-03-31 251-771-0XXX 0000–0999Assigned TELNYX LLC 073H MELVIN AL
2023-03-31 251-810-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H GRAND BAY AL
2023-03-31 251-877-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H FOWL RIVER AL
2023-03-24 251-240-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FOLEY AL
2023-03-24 251-396-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 MOBILE AL
2023-03-24 251-429-9XXX 9000–9999Assigned BOOST SUBSCRIBERCO L.L.C. 490J GRAND BAY AL
2023-03-21 251-334-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E URIAH AL
2023-03-21 251-334-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E URIAH AL
2023-03-20 251-240-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 FOLEY AL
2023-03-02 251-252-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2023-03-02 251-384-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2023-02-28 251-289-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2023-02-28 251-289-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2023-02-28 251-289-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2023-02-27 251-224-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2023-02-27 251-407-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2023-02-27 251-407-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2023-02-23 251-347-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E URIAH AL
2023-02-22 251-286-3XXX 3000–3999Assigned TELNYX LLC 073H BREWTON AL
2023-02-21 251-866-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2023-02-15 251-354-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E GROVE HILL AL
2023-02-14 251-427-1XXX 1000–1999Assigned NUSO, LLC 732J FAIRHOPE AL
2023-02-14 251-521-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 GRAND BAY AL
2023-02-09 251-412-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MCINTOSH AL
2023-02-06 251-321-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 ATMORE AL
2023-01-26 251-335-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MELVIN AL
2023-01-20 251-571-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BAYMINETTE AL
2023-01-20 251-571-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BAYMINETTE AL
2023-01-19 251-426-1XXX 1000–1999Assigned AIRUS, INC. - AL 476H MOBILE AL
2023-01-04 251-419-0XXX 0000–0999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE 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.