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
2011-05-24 251-219-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2011-05-24 251-298-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2011-05-24 251-298-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2011-05-24 251-316-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2011-05-10 251-229-4XXX 4000–4999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2011-05-10 251-229-7XXX 7000–7999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2011-05-04 251-706-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2011-05-02 251-202-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F BAYMINETTE AL
2011-05-02 251-732-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 FLOMATON AL
2011-04-18 251-597-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2011-04-14 251-616-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F CLEAR SPG AL
2011-04-12 251-387-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F JACKSON AL
2011-04-05 251-380-7XXX 7000–7999Assigned TELEPAK NETWORKS, INC. - AL 947G MOBILE AL
2011-04-05 251-380-8XXX 8000–8999Assigned TELEPAK NETWORKS, INC. - AL 947G MOBILE AL
2011-03-21 251-274-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C MCINTOSH AL
2011-03-16 251-223-5XXX 5000–5999Assigned METROPCS, INC. 5562 FOLEY AL
2011-03-09 251-287-5XXX 5000–5999Assigned METROPCS, INC. 5562 MOBILE AL
2011-03-09 251-298-0XXX 0000–0999Assigned METROPCS, INC. 5562 MOBILE AL
2011-02-18 251-518-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2011-02-18 251-518-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2011-01-20 251-287-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J MOBILE AL
2011-01-20 251-287-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MOBILE AL
2011-01-19 251-348-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2011-01-19 251-348-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 MOBILE AL
2011-01-14 251-459-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C MOBILE AL
2011-01-07 251-229-8XXX 8000–8999Assigned ELISKA WIRELESS VENTURES SUBSIDIARY I, LLC 6916 ATMORE AL
2010-12-23 251-207-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 BELLEFONTN AL
2010-12-17 251-600-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-200-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-233-4XXX 4000–4999Assigned METROPCS, INC. 5562 FOLEY AL
2010-12-13 251-240-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-256-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-271-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-324-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-13 251-677-0XXX 0000–0999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-12-01 251-500-1XXX 1000–1999Assigned MCC TELEPHONY OF THE SOUTH, LLC - AL 773F FOLEY AL
2010-11-17 251-281-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2010-11-17 251-287-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2010-11-11 251-298-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2010-11-11 251-298-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 MOBILE AL
2010-11-11 251-345-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2010-11-11 251-369-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 EVERGREEN AL
2010-11-09 251-504-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - GA 6214 FOLEY AL
2010-10-22 251-387-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 JACKSON AL
2010-10-20 251-239-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AL 7221 BAYMINETTE AL
2010-10-06 251-263-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2010-10-06 251-272-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AL 072F MOBILE AL
2010-09-20 251-727-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 6804 BREWTON AL
2010-09-14 251-263-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - AL 5255 MOBILE AL
2010-09-02 251-287-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J MOBILE 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.