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
2018-03-15 479-329-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2018-03-15 479-329-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2018-03-15 479-329-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2018-03-15 479-329-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2018-03-15 479-329-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2018-03-15 479-502-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 FAYETTEVL AR
2018-03-15 479-879-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FAYETTEVL AR
2018-03-13 479-322-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 GREENWOOD AR
2018-03-12 479-407-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2018-03-12 479-407-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2018-03-12 479-407-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2018-03-12 479-407-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2018-02-28 479-407-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ALMA AR
2018-02-28 479-709-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2018-02-20 479-420-2XXX 2000–2999Assigned METROPCS, INC. 5562 FORT SMITH AR
2018-02-20 479-769-9XXX 9000–9999Assigned METROPCS, INC. 5562 FORT SMITH AR
2018-02-16 479-601-0XXX 0000–0999Assigned METROPCS, INC. 5562 FAYETTEVL AR
2018-02-14 479-327-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 STRICKLER AR
2018-02-14 479-328-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 MORROW AR
2018-02-14 479-502-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FAYETTEVL AR
2018-01-30 479-300-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 FARMINGTON AR
2018-01-30 479-400-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 PRAIRIEGRV AR
2018-01-30 479-500-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 LINCOLN AR
2018-01-29 479-326-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J BENTONVL AR
2018-01-24 479-213-9XXX 9000–9999Assigned VANTAGE TELECOM, LLC DBA NEWROADS TELECOM - AR 5018 OZARK AR
2018-01-24 479-774-6XXX 6000–6999Assigned VANTAGE TELECOM, LLC DBA NEWROADS TELECOM - AR 5018 CLARKSVL AR
2018-01-23 479-879-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 FAYETTEVL AR
2018-01-22 479-407-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F ALMA AR
2018-01-10 479-318-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2018-01-10 479-318-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2018-01-10 479-318-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2018-01-10 479-318-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2018-01-10 479-318-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2018-01-10 479-324-1XXX 1000–1999Assigned VANTAGE TELECOM, LLC DBA NEWROADS TELECOM - AR 5018 RUSSELLVL AR
2018-01-08 479-522-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 479-522-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 479-522-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 479-769-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 479-769-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2018-01-08 479-769-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2017-12-19 479-226-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2017-12-19 479-763-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2017-12-13 479-357-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F GREENWOOD AR
2017-12-04 479-281-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J LAVACA AR
2017-12-04 479-318-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SPRINGDALE AR
2017-11-29 479-269-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MANSFIELD AR
2017-11-29 479-294-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J WEST FORK AR
2017-11-29 479-297-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MULBERRY AR
2017-11-29 479-309-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J MIDLAND AR
2017-11-29 479-373-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SILOAM SPG 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.