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
2014-10-06 251-888-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MOBILE AL
2014-10-06 251-888-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E MOBILE AL
2014-10-03 251-504-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2014-10-01 251-230-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F EVERGREEN AL
2014-10-01 251-230-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F EVERGREEN AL
2014-09-30 251-239-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J BAYMINETTE AL
2014-09-30 251-270-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FAIRHOPE AL
2014-09-24 251-303-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2014-09-10 251-225-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MCINTOSH AL
2014-09-10 251-237-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F FLOMATON AL
2014-09-09 251-460-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J MOBILE AL
2014-08-28 251-586-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 MOBILE AL
2014-08-22 251-273-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F CITRONELLE AL
2014-08-15 251-513-3XXX 3000–3999Assigned METROPCS, INC. 5562 MOBILE AL
2014-08-15 251-525-2XXX 2000–2999Assigned METROPCS, INC. 5562 MOBILE AL
2014-08-06 251-321-3XXX 3000–3999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2014-08-06 251-321-6XXX 6000–6999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2014-08-04 251-230-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F EVERGREEN AL
2014-08-04 251-230-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F EVERGREEN AL
2014-08-04 251-286-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BREWTON AL
2014-08-04 251-929-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F FAIRHOPE AL
2014-07-31 251-662-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2014-07-17 251-660-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C MOBILE AL
2014-07-10 251-308-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2014-07-10 251-308-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2014-07-10 251-308-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2014-07-10 251-308-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2014-07-10 251-308-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2014-07-02 251-308-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2014-07-01 251-931-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J CLEAR SPG AL
2014-06-11 251-216-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 EVERGREEN AL
2014-06-06 251-525-5XXX 5000–5999Assigned METROPCS, INC. 5562 MOBILE AL
2014-06-04 251-299-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MT VERNON AL
2014-05-29 251-216-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F EVERGREEN AL
2014-05-29 251-494-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BAYMINETTE AL
2014-05-29 251-580-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BAYMINETTE AL
2014-05-19 251-308-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MOBILE AL
2014-05-19 251-308-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MOBILE AL
2014-05-16 251-262-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F JACKSON AL
2014-05-08 251-308-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MOBILE AL
2014-04-24 251-989-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FOLEY AL
2014-04-21 251-225-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MCINTOSH AL
2014-04-11 251-201-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FOLEY AL
2014-04-11 251-227-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J EVERGREEN AL
2014-04-11 251-235-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J MCINTOSH AL
2014-04-11 251-236-6XXX 6000–6999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BREWTON AL
2014-04-11 251-254-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FLOMATON AL
2014-04-11 251-256-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J FOLEY AL
2014-04-11 251-262-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J JACKSON AL
2014-04-11 251-271-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 FOLEY 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.