NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

67 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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 479
NEW CINGULAR WIRELESS PCS, LLC - IL 40
ONVOY, LLC - AR 13
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 10
INTRADO COMMUNICATIONS, LLC 2
TELNYX LLC 1
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
2014-08-05 479-320-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SPRINGDALE AR
2014-08-04 479-250-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 BENTONVL AR
2014-08-04 479-282-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 ROGERS AR
2014-06-30 479-430-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALMA AR
2014-06-30 479-670-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALMA AR
2014-06-04 479-431-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 FORT SMITH AR
2014-05-27 479-306-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2014-05-27 479-306-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2014-05-27 479-657-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2014-05-27 479-657-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2014-05-27 479-657-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2014-05-21 479-219-3XXX 3000–3999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G RUSSELLVL AR
2014-05-21 479-219-4XXX 4000–4999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G RUSSELLVL AR
2014-05-21 479-219-5XXX 5000–5999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G RUSSELLVL AR
2014-05-15 479-316-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 FAYETTEVL AR
2014-04-28 479-320-3XXX 3000–3999Assigned SOUTHWESTERN BELL 9533 SPRINGDALE AR
2014-04-23 479-219-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C RUSSELLVL AR
2014-04-23 479-689-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VAN BUREN AR
2014-04-22 479-718-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 FAYETTEVL AR
2014-04-18 479-317-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RUSSELLVL AR
2014-03-14 479-340-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ROGERS AR
2014-03-14 479-340-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ROGERS AR
2014-03-12 479-235-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F VAN BUREN AR
2014-03-07 479-876-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BENTONVL AR
2014-02-25 479-310-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2014-02-25 479-358-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2014-02-25 479-358-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2014-02-25 479-358-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2014-02-24 479-544-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2014-02-24 479-544-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2014-02-18 479-573-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2014-02-18 479-573-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2014-01-27 479-312-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALMA AR
2014-01-27 479-312-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALMA AR
2014-01-14 479-212-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 DECATUR AR
2014-01-14 479-866-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BENTONVL AR
2014-01-09 479-307-1XXX 1000–1999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G ATKINS AR
2014-01-09 479-315-1XXX 1000–1999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G DOVER AR
2014-01-02 479-477-5XXX 5000–5999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G DARDANELLE AR
2014-01-02 479-647-4XXX 4000–4999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G CLARKSVL AR
2014-01-02 479-647-5XXX 5000–5999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G CLARKSVL AR
2013-12-26 479-770-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2013-12-26 479-770-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2013-12-18 479-800-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FAYETTEVL AR
2013-12-18 479-800-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FAYETTEVL AR
2013-12-13 479-717-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SPRINGDALE AR
2013-12-11 479-289-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2013-12-11 479-310-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2013-12-11 479-310-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2013-12-11 479-385-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F MENA AR

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.