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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2007-07-05 870-204-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARRISON AR
2007-07-02 870-820-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WARREN AR
2007-06-21 870-376-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 BATESVILLE AR
2007-06-19 870-726-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GREEN FOR AR
2007-06-07 870-207-0XXX 0000–0999Assigned E. RITTER COMMUNICATIONS, LLC 128L JONESBORO AR
2007-06-07 870-207-1XXX 1000–1999Assigned E. RITTER COMMUNICATIONS, LLC 128L JONESBORO AR
2007-06-07 870-207-2XXX 2000–2999Assigned E. RITTER COMMUNICATIONS, LLC 128L JONESBORO AR
2007-06-07 870-207-3XXX 3000–3999Assigned E. RITTER COMMUNICATIONS, LLC 128L JONESBORO AR
2007-06-07 870-207-4XXX 4000–4999Assigned E. RITTER COMMUNICATIONS, LLC 128L JONESBORO AR
2007-06-07 870-207-5XXX 5000–5999Assigned E. RITTER COMMUNICATIONS, LLC 128L JONESBORO AR
2007-06-07 870-207-6XXX 6000–6999Assigned E. RITTER COMMUNICATIONS, LLC 128L JONESBORO AR
2007-06-07 870-207-7XXX 7000–7999Assigned E. RITTER COMMUNICATIONS, LLC 128L JONESBORO AR
2007-06-07 870-207-8XXX 8000–8999Assigned E. RITTER COMMUNICATIONS, LLC 128L JONESBORO AR
2007-06-07 870-207-9XXX 9000–9999Assigned E. RITTER COMMUNICATIONS, LLC 128L JONESBORO AR
2007-05-04 870-271-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARRISBURG AR
2007-04-25 870-355-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EUDORA AR
2007-04-25 870-484-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERIDAN AR
2007-04-25 870-831-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HAMBURG AR
2007-04-23 870-262-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BATESVILLE AR
2007-04-23 870-416-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HARRISON AR
2007-04-11 870-204-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J HARRISON AR
2007-03-23 870-799-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NEWARK AR
2007-03-15 870-573-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PARAGOULD AR
2007-03-09 870-665-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 EL DORADO AR
2007-02-26 870-519-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 FORREST CY AR
2007-02-22 870-200-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 NASHVILLE AR
2007-02-22 870-330-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TEXARKANA AR
2007-02-15 870-416-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2007-02-13 870-632-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAKE VLG AR
2007-02-13 870-995-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HELENA AR
2007-02-13 870-995-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HELENA AR
2007-02-12 870-390-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CAMDEN AR
2007-02-01 870-667-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 ASHDOWN AR
2007-01-17 870-224-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONTICELLO AR
2007-01-17 870-224-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MONTICELLO AR
2007-01-17 870-834-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BATESVILLE AR
2007-01-16 870-413-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2007-01-16 870-725-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SMACKOVER AR
2007-01-12 870-680-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 JONESBORO AR
2007-01-12 870-680-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 JONESBORO AR
2007-01-12 870-680-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 JONESBORO AR
2007-01-04 870-635-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 W MEMPHIS AR
2006-12-28 870-538-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DERMOTT AR
2006-12-27 870-820-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WARREN AR
2006-12-21 870-210-5XXX 5000–5999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G ARKADLPHIA AR
2006-12-21 870-228-6XXX 6000–6999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G HELENA AR
2006-12-21 870-353-0XXX 0000–0999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G GURDON AR
2006-12-21 870-495-3XXX 3000–3999Assigned TCA COMMUNICATIONS, LLC DBA SUDDENLINK COMM - AR 048G NEWPORT AR
2006-12-08 870-783-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 RECTOR AR
2006-12-07 870-200-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NASHVILLE 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.