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
2017-07-18 479-721-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 ROGERS AR
2017-07-18 479-903-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 ROGERS AR
2017-07-07 479-217-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 MULBERRY AR
2017-07-07 479-367-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2017-07-07 479-367-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2017-07-07 479-367-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2017-07-07 479-367-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2017-07-07 479-402-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2017-07-03 479-431-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2017-06-30 479-877-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 ROGERS AR
2017-06-23 479-367-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2017-06-23 479-367-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2017-06-08 479-777-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F MENA AR
2017-06-07 479-212-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 DECATUR AR
2017-06-06 479-228-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 SILOAM SPG AR
2017-05-25 479-241-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 ST PAUL AR
2017-05-24 479-210-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 DRAKES CRK AR
2017-05-24 479-213-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 OZARK AR
2017-05-24 479-217-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 MULBERRY AR
2017-05-24 479-240-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 ELKINS AR
2017-05-24 479-294-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 WEST FORK AR
2017-05-24 479-662-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 MOUNTAINBG AR
2017-05-24 479-765-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 WINSLOW AR
2017-05-22 479-252-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENWOOD AR
2017-05-19 479-345-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 NATURALDAM AR
2017-05-19 479-789-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 HINDSVILLE AR
2017-05-10 479-345-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F NATURALDAM AR
2017-05-05 479-777-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F MENA AR
2017-05-05 479-777-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F MENA AR
2017-05-04 479-325-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HUNTSVILLE AR
2017-05-01 479-319-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 BENTONVL AR
2017-04-26 479-367-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BENTONVL AR
2017-04-26 479-373-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J SILOAM SPG AR
2017-04-24 479-313-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J FAYETTEVL AR
2017-04-10 479-367-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 BENTONVL AR
2017-03-29 479-347-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SPRINGDALE AR
2017-03-17 479-233-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GENTRY AR
2017-03-01 479-407-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C ALMA AR
2017-03-01 479-777-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C MENA AR
2017-02-28 479-347-0XXX 0000–0999Assigned METROPCS, INC. 5562 SPRINGDALE AR
2017-02-27 479-401-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J FORT SMITH AR
2017-02-27 479-877-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J ROGERS AR
2017-02-24 479-401-7XXX 7000–7999Assigned METROPCS, INC. 5562 FORT SMITH AR
2017-02-24 479-401-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT SMITH AR
2017-02-09 479-347-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2017-02-09 479-347-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2017-02-08 479-877-8XXX 8000–8999Assigned METROPCS, INC. 5562 ROGERS AR
2017-02-03 479-347-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 SPRINGDALE AR
2017-02-01 479-345-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F NATURALDAM AR
2017-02-01 479-347-1XXX 1000–1999Assigned METROPCS, INC. 5562 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.