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
2013-10-25 479-250-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2013-10-25 479-250-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2013-10-18 479-220-4XXX 4000–4999Assigned METROPCS, INC. 5562 SILOAM SPG AR
2013-10-18 479-250-2XXX 2000–2999Assigned METROPCS, INC. 5562 BENTONVL AR
2013-10-18 479-256-1XXX 1000–1999Assigned METROPCS, INC. 5562 ROGERS AR
2013-10-18 479-256-2XXX 2000–2999Assigned METROPCS, INC. 5562 ROGERS AR
2013-10-18 479-306-3XXX 3000–3999Assigned METROPCS, INC. 5562 SPRINGDALE AR
2013-10-18 479-306-5XXX 5000–5999Assigned METROPCS, INC. 5562 SPRINGDALE AR
2013-10-18 479-316-5XXX 5000–5999Assigned METROPCS, INC. 5562 FAYETTEVL AR
2013-10-18 479-802-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J BENTONVL AR
2013-10-15 479-877-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 ROGERS AR
2013-10-14 479-757-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2013-10-03 479-312-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2013-09-27 479-670-7XXX 7000–7999Assigned METROPCS, INC. 5562 ALMA AR
2013-09-27 479-670-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2013-09-20 479-306-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 SPRINGDALE AR
2013-09-19 479-249-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J FAYETTEVL AR
2013-09-12 479-316-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 FAYETTEVL AR
2013-09-12 479-802-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 BENTONVL AR
2013-08-14 479-573-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 FORT SMITH AR
2013-06-25 479-802-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2013-06-25 479-802-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2013-06-13 479-276-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALMA AR
2013-06-13 479-276-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALMA AR
2013-06-06 479-306-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SPRINGDALE AR
2013-06-06 479-306-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SPRINGDALE AR
2013-06-06 479-340-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ROGERS AR
2013-06-06 479-800-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 FAYETTEVL AR
2013-05-03 479-282-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 ROGERS AR
2013-04-25 479-226-5XXX 5000–5999Assigned SOUTHWESTERN BELL 9533 FORT SMITH AR
2013-04-19 479-802-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 BENTONVL AR
2013-04-10 479-276-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2013-04-10 479-276-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2013-04-10 479-316-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 FAYETTEVL AR
2013-04-10 479-802-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BENTONVL AR
2013-03-28 479-224-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTERTON AR
2013-03-28 479-268-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BENTONVL AR
2013-03-27 479-419-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRINGDALE AR
2013-03-15 479-255-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HACKETT AR
2013-03-14 479-252-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREENWOOD AR
2013-03-12 479-289-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2013-03-12 479-289-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F FORT SMITH AR
2013-03-11 479-306-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SPRINGDALE AR
2013-02-25 479-259-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 FORT SMITH AR
2013-02-20 479-208-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VAN BUREN AR
2013-02-15 479-418-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BENTONVL AR
2013-02-15 479-670-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ALMA AR
2013-01-17 479-276-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALMA AR
2013-01-14 479-802-7XXX 7000–7999Assigned SOUTHWESTERN BELL 9533 BENTONVL AR
2012-12-14 479-358-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C FORT SMITH 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.