NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 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 870
ONVOY, LLC - AR 5
AHOI 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
2008-07-22 870-267-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PINE BLUFF AR
2008-07-07 870-224-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONTICELLO AR
2008-07-01 870-648-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA AR
2008-06-13 870-826-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HOPE AR
2008-05-23 870-362-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WYNNE AR
2008-04-14 870-501-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 MCGEHEE AR
2008-04-04 870-532-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLYTHEVL AR
2008-03-27 870-819-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 JONESBORO AR
2008-03-27 870-819-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 JONESBORO AR
2008-03-27 870-819-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 JONESBORO AR
2008-03-24 870-590-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SMACKOVER AR
2008-03-18 870-648-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TEXARKANA AR
2008-03-17 870-228-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HELENA AR
2008-03-17 870-251-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BATESVILLE AR
2008-03-14 870-776-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BLYTHEVL AR
2008-02-20 870-200-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 NASHVILLE AR
2008-02-19 870-586-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C PARAGOULD AR
2008-02-08 870-395-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PINE BLUFF AR
2008-02-08 870-395-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PINE BLUFF AR
2008-02-08 870-530-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JONESBORO AR
2008-02-08 870-530-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JONESBORO AR
2008-02-08 870-821-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARIANNA AR
2008-02-08 870-833-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CAMDEN AR
2008-02-07 870-225-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 W MEMPHIS AR
2007-12-08 870-455-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 NASHVILLE AR
2007-12-04 870-648-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 TEXARKANA AR
2007-11-13 870-638-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BRINKLEY AR
2007-11-09 870-204-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2007-11-02 870-200-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NASHVILLE AR
2007-11-02 870-501-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MCGEHEE AR
2007-11-02 870-659-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 STUTTGART AR
2007-11-02 870-995-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HELENA AR
2007-10-30 870-394-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J W MEMPHIS AR
2007-10-18 870-267-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PINE BLUFF AR
2007-10-18 870-945-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FORREST CY AR
2007-10-12 870-224-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONTICELLO AR
2007-10-12 870-530-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JONESBORO AR
2007-10-12 870-820-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WARREN AR
2007-10-12 870-883-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERIDAN AR
2007-10-09 870-204-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARRISON AR
2007-10-08 870-677-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 EL DORADO AR
2007-10-05 870-390-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CAMDEN AR
2007-10-05 870-635-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 W MEMPHIS AR
2007-10-03 870-251-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BATESVILLE AR
2007-09-14 870-283-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CAVE CITY AR
2007-08-10 870-253-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 JONESBORO AR
2007-08-10 870-253-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 JONESBORO AR
2007-07-25 870-624-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TUCKERMAN AR
2007-07-23 870-204-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2007-07-11 870-677-4XXX 4000–4999Assigned SOUTHWESTERN BELL 9533 EL DORADO 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.