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
2011-03-22 479-866-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BENTONVL AR
2011-03-15 479-226-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT SMITH AR
2011-03-15 479-226-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT SMITH AR
2011-03-15 479-226-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT SMITH AR
2011-03-15 479-226-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT SMITH AR
2011-03-02 479-789-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C HINDSVILLE AR
2011-03-02 479-929-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C NATURALDAM AR
2011-02-25 479-692-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RUSSELLVL AR
2011-01-26 479-600-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAVETTE AR
2011-01-26 479-600-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAVETTE AR
2011-01-13 479-831-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT SMITH AR
2011-01-13 479-831-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT SMITH AR
2011-01-13 479-926-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORT SMITH AR
2011-01-05 479-657-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2011-01-05 479-657-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2011-01-05 479-696-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2011-01-05 479-696-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2010-12-02 479-365-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J SPRINGDALE AR
2010-11-11 479-202-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROGERS AR
2010-11-11 479-270-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROGERS AR
2010-11-11 479-935-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAYETTEVL AR
2010-11-11 479-935-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAYETTEVL AR
2010-11-11 479-973-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAYETTEVL AR
2010-11-04 479-668-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 FORT SMITH AR
2010-10-29 479-435-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 FAYETTEVL AR
2010-10-12 479-300-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J FARMINGTON AR
2010-10-12 479-400-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PRAIRIEGRV AR
2010-10-12 479-500-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LINCOLN AR
2010-09-03 479-280-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 RUSSELLVL AR
2010-08-30 479-684-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAYETTEVL AR
2010-08-30 479-684-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAYETTEVL AR
2010-08-09 479-866-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BENTONVL AR
2010-07-15 479-668-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 FORT SMITH AR
2010-06-28 479-866-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BENTONVL AR
2010-06-11 479-439-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 FAYETTEVL AR
2010-06-11 479-439-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 FAYETTEVL AR
2010-04-21 479-418-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BENTONVL AR
2010-04-21 479-435-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 FAYETTEVL AR
2010-04-05 479-268-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 BENTONVL AR
2010-03-31 479-438-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PARIS AR
2010-03-31 479-595-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAYETTEVL AR
2010-03-31 479-595-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FAYETTEVL AR
2010-03-22 479-226-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J FORT SMITH AR
2010-03-17 479-270-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROGERS AR
2010-03-17 479-270-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROGERS AR
2010-03-17 479-270-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROGERS AR
2010-03-11 479-435-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 FAYETTEVL AR
2010-03-11 479-435-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 FAYETTEVL AR
2010-03-08 479-280-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 RUSSELLVL AR
2010-03-04 479-343-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C VAN BUREN 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.