NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

67 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 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
2015-09-16 479-260-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C SPRINGDALE AR
2015-09-16 479-260-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C SPRINGDALE AR
2015-09-16 479-260-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C SPRINGDALE AR
2015-09-16 479-260-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C SPRINGDALE AR
2015-09-16 479-260-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C SPRINGDALE AR
2015-09-16 479-260-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C SPRINGDALE AR
2015-09-16 479-260-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C SPRINGDALE AR
2015-09-01 479-231-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2015-09-01 479-231-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2015-09-01 479-231-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2015-09-01 479-231-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2015-09-01 479-319-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 BENTONVL AR
2015-08-31 479-435-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C FAYETTEVL AR
2015-08-25 479-224-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTERTON AR
2015-08-25 479-321-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2015-08-25 479-321-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2015-08-25 479-321-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2015-08-25 479-321-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2015-08-21 479-256-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 ROGERS AR
2015-08-21 479-256-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 ROGERS AR
2015-08-21 479-903-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 ROGERS AR
2015-08-11 479-214-6XXX 6000–6999Assigned E. RITTER COMMUNICATIONS, LLC 128L CLARKSVL AR
2015-08-11 479-219-9XXX 9000–9999Assigned E. RITTER COMMUNICATIONS, LLC 128L RUSSELLVL AR
2015-07-21 479-435-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 FAYETTEVL AR
2015-07-17 479-308-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C FORT SMITH AR
2015-07-16 479-220-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C SILOAM SPG AR
2015-07-14 479-321-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C BENTONVL AR
2015-07-08 479-282-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 ROGERS AR
2015-06-01 479-340-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C ROGERS AR
2015-05-26 479-361-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2015-05-26 479-757-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2015-05-20 479-256-6XXX 6000–6999Assigned WINDSTREAM COMMUNICATIONS, INC. - AR 7656 ROGERS AR
2015-05-20 479-308-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2015-05-20 479-308-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2015-05-20 479-308-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2015-05-20 479-308-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2015-05-20 479-308-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2015-05-20 479-308-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2015-05-11 479-304-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FAYETTEVL AR
2015-05-11 479-308-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J FORT SMITH AR
2015-04-24 479-321-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2015-04-24 479-321-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2015-04-24 479-321-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2015-04-21 479-406-9XXX 9000–9999Assigned WINDSTREAM ARKANSAS, INC. 1691 MULBERRY AR
2015-04-21 479-431-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 FORT SMITH AR
2015-04-20 479-308-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J FORT SMITH AR
2015-04-17 479-437-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F MENA AR
2015-04-03 479-321-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 BENTONVL AR
2015-03-27 479-927-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SPRINGDALE AR
2015-03-11 479-361-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C SPRINGDALE AR

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.