NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

6 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 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
2011-10-25 870-206-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 JONESBORO AR
2011-10-21 870-260-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 ARKADLPHIA AR
2011-10-21 870-400-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 W MEMPHIS AR
2011-10-19 870-594-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 FORREST CY AR
2011-10-12 870-455-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C NASHVILLE AR
2011-10-12 870-474-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C HOPE AR
2011-10-12 870-576-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C OSCEOLA AR
2011-10-12 870-759-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WALNUT RDG AR
2011-10-12 870-821-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MARIANNA AR
2011-10-06 870-277-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-10-06 870-316-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-10-06 870-680-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-10-06 870-727-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2011-10-06 870-727-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2011-10-06 870-727-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2011-10-06 870-727-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2011-09-28 870-573-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 PARAGOULD AR
2011-09-23 870-759-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WALNUT RDG AR
2011-09-22 870-494-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 FORREST CY AR
2011-09-22 870-569-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 BATESVILLE AR
2011-09-12 870-474-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AR 7277 HOPE AR
2011-09-02 870-415-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 CROSSETT AR
2011-08-25 870-300-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DERMOTT AR
2011-08-23 870-671-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2011-08-23 870-671-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2011-08-23 870-671-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2011-08-23 870-671-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2011-08-23 870-671-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2011-08-18 870-571-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TEXARKANA AR
2011-08-16 870-562-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MAGNOLIA AR
2011-08-11 870-878-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BLACK ROCK AR
2011-08-08 870-824-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BLYTHEVL AR
2011-08-03 870-495-4XXX 4000–4999Assigned METROPCS, INC. 5562 NEWPORT AR
2011-08-01 870-203-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-08-01 870-277-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-08-01 870-277-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-08-01 870-277-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-08-01 870-277-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-08-01 870-281-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BLYTHEVL AR
2011-08-01 870-281-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BLYTHEVL AR
2011-08-01 870-355-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C EUDORA AR
2011-08-01 870-466-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C WARREN AR
2011-08-01 870-533-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C STAMPS AR
2011-08-01 870-590-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SMACKOVER AR
2011-08-01 870-831-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C HAMBURG AR
2011-07-20 870-203-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-07-20 870-203-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-07-20 870-203-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2011-07-19 870-212-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 PARAGOULD AR
2011-07-14 870-413-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF 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.