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
2020-03-11 251-254-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FLOMATON AL
2020-03-05 251-322-5XXX 5000–5999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F ATMORE AL
2020-02-18 251-949-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2020-02-14 251-217-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-02-14 251-283-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-02-14 251-283-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-02-14 251-283-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-02-14 251-305-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-02-14 251-355-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-02-14 251-385-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-02-14 251-434-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-02-14 251-461-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2020-01-22 251-293-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BELLEFONTN AL
2020-01-07 251-931-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E CLEAR SPG AL
2019-12-18 251-873-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F FOWL RIVER AL
2019-12-03 251-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H FINCHBURG AL
2019-12-03 251-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H FINCHBURG AL
2019-12-03 251-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H MOBILE AL
2019-12-03 251-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H MOBILE AL
2019-11-20 251-318-1XXX 1000–1999Assigned TELNYX LLC 073H MOBILE AL
2019-11-14 251-305-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2019-11-14 251-305-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2019-11-14 251-305-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2019-11-14 251-305-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2019-11-14 251-345-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2019-11-14 251-385-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2019-11-14 251-414-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2019-11-14 251-431-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2019-11-08 251-651-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BAYMINETTE AL
2019-11-08 251-651-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BAYMINETTE AL
2019-10-18 251-305-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E MOBILE AL
2019-10-18 251-305-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MOBILE AL
2019-10-18 251-305-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MOBILE AL
2019-10-15 251-512-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E COFFEEVL AL
2019-10-15 251-512-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E COFFEEVL AL
2019-10-15 251-850-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2019-10-15 251-850-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E FAIRHOPE AL
2019-10-11 251-651-4XXX 4000–4999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F BAYMINETTE AL
2019-10-10 251-274-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E MCINTOSH AL
2019-10-10 251-274-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MCINTOSH AL
2019-10-10 251-280-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E FLOMATON AL
2019-10-10 251-280-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E FLOMATON AL
2019-10-10 251-290-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E GRAND BAY AL
2019-10-10 251-290-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E GRAND BAY AL
2019-10-10 251-292-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MELVIN AL
2019-10-10 251-292-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MELVIN AL
2019-09-26 251-293-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 BELLEFONTN AL
2019-09-20 251-305-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2019-09-12 251-244-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E PETERMAN AL
2019-09-12 251-244-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E PETERMAN 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.