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
2016-12-07 251-930-7XXX 7000–7999Assigned METROPCS, INC. 5562 MOBILE AL
2016-12-07 251-930-8XXX 8000–8999Assigned METROPCS, INC. 5562 MOBILE AL
2016-12-05 251-264-0XXX 0000–0999Assigned METROPCS, INC. 5562 MOBILE AL
2016-12-05 251-264-1XXX 1000–1999Assigned METROPCS, INC. 5562 MOBILE AL
2016-12-05 251-930-3XXX 3000–3999Assigned METROPCS, INC. 5562 MOBILE AL
2016-10-31 251-322-8XXX 8000–8999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2016-10-31 251-322-9XXX 9000–9999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2016-10-18 251-200-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2016-09-22 251-320-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 JACKSON AL
2016-09-16 251-930-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F MOBILE AL
2016-09-14 251-254-2XXX 2000–2999Assigned ONVOY, LLC - AL 604E FLOMATON AL
2016-09-08 251-270-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C FAIRHOPE AL
2016-09-06 251-264-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2016-09-06 251-264-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2016-08-31 251-217-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2016-08-31 251-800-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2016-08-10 251-930-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 MOBILE AL
2016-08-09 251-800-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J MOBILE AL
2016-08-09 251-800-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J MOBILE AL
2016-08-02 251-217-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MOBILE AL
2016-07-27 251-616-9XXX 9000–9999Assigned ONVOY, LLC - AL 604E CLEAR SPG AL
2016-07-08 251-405-8XXX 8000–8999Assigned METROPCS, INC. 5562 MOBILE AL
2016-07-08 251-800-2XXX 2000–2999Assigned METROPCS, INC. 5562 MOBILE AL
2016-07-05 251-200-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2016-07-01 251-525-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C MOBILE AL
2016-07-01 251-930-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C MOBILE AL
2016-06-23 251-525-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J MOBILE AL
2016-06-15 251-270-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F FAIRHOPE AL
2016-05-12 251-473-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C MOBILE AL
2016-05-09 251-200-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2016-05-09 251-217-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2016-05-09 251-217-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2016-05-09 251-930-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MOBILE AL
2016-03-31 251-217-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MOBILE AL
2016-03-30 251-439-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL 7221 MOBILE AL
2016-03-30 251-931-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E CLEAR SPG AL
2016-03-17 251-378-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2016-03-16 251-418-7XXX 7000–7999Assigned ONVOY, LLC - AL 604E MCINTOSH AL
2016-03-16 251-418-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E MCINTOSH AL
2016-03-07 251-260-3XXX 3000–3999Assigned ONVOY, LLC - AL 604E MELVIN AL
2016-03-07 251-260-4XXX 4000–4999Assigned ONVOY, LLC - AL 604E MELVIN AL
2016-03-02 251-302-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MONROEVL AL
2016-02-18 251-257-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2016-02-18 251-257-1XXX 1000–1999Assigned ONVOY, LLC - AL 604E BELLEFONTN AL
2016-02-18 251-450-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2016-02-18 251-776-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2016-02-11 251-317-5XXX 5000–5999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2016-02-11 251-317-6XXX 6000–6999Assigned ONVOY, LLC - AL 604E CITRONELLE AL
2016-02-10 251-299-0XXX 0000–0999Assigned ONVOY, LLC - AL 604E MT VERNON AL
2016-02-10 251-299-8XXX 8000–8999Assigned ONVOY, LLC - AL 604E MT VERNON 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.