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
2010-01-13 251-288-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2010-01-11 251-654-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2010-01-11 251-654-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-12-28 251-272-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2009-12-28 251-744-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 JACKSON AL
2009-12-23 251-286-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C BREWTON AL
2009-12-08 251-284-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2009-12-08 251-285-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-12-08 251-285-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-12-08 251-369-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 EVERGREEN AL
2009-11-16 251-222-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-11-16 251-222-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-11-16 251-222-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-11-16 251-222-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-11-03 251-300-6XXX 6000–6999Assigned TELEPAK NETWORKS, INC. - AL 947G MOBILE AL
2009-10-07 251-348-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-10-01 251-957-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J IRNGTNSTEL AL
2009-09-22 251-623-6XXX 6000–6999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2009-09-22 251-623-8XXX 8000–8999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 MOBILE AL
2009-09-11 251-263-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2009-09-11 251-263-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2009-09-10 251-517-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J FAIRHOPE AL
2009-09-09 251-616-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CLEAR SPG AL
2009-09-08 251-348-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-09-08 251-348-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-09-08 251-348-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-08-12 251-348-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-08-12 251-348-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-08-05 251-725-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2009-07-28 251-300-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-07-10 251-424-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 FOLEY AL
2009-06-05 251-263-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2009-05-28 251-284-9XXX 9000–9999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 FOLEY AL
2009-05-27 251-369-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 EVERGREEN AL
2009-05-27 251-727-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BREWTON AL
2009-05-27 251-744-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 JACKSON AL
2009-05-22 251-269-5XXX 5000–5999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 FOLEY AL
2009-05-21 251-239-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C BAYMINETTE AL
2009-05-21 251-517-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C FAIRHOPE AL
2009-05-21 251-744-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C JACKSON AL
2009-05-11 251-348-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C MOBILE AL
2009-04-28 251-725-7XXX 7000–7999Assigned CELLULAR SOUTH, INC. 6581 MOBILE AL
2009-04-28 251-725-8XXX 8000–8999Assigned CELLULAR SOUTH, INC. 6581 MOBILE AL
2009-04-09 251-287-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL 7221 MOBILE AL
2009-03-31 251-237-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AL 8271 FLOMATON AL
2009-03-20 251-829-8XXX 8000–8999Assigned TELEPAK NETWORKS, INC. - AL 947G MT VERNON AL
2009-03-19 251-408-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MOBILE AL
2009-03-19 251-447-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MOBILE AL
2009-03-18 251-725-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MOBILE AL
2009-03-05 251-424-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 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.