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
2019-11-22 870-309-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2019-11-22 870-312-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2019-11-22 870-312-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2019-11-22 870-393-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JONESBORO AR
2019-11-22 870-497-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JONESBORO AR
2019-11-22 870-666-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JONESBORO AR
2019-11-21 870-359-2XXX 2000–2999Assigned AIRUS, INC. - AR 578H HOPE AR
2019-11-15 870-377-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C DUMAS AR
2019-11-12 870-639-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 EL DORADO AR
2019-11-05 870-771-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARION AR
2019-10-16 870-606-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F NOSPRINGHL AR
2019-10-15 870-600-9XXX 9000–9999Assigned AIRUS, INC. - AR 578H ASHDOWN AR
2019-10-14 870-409-0XXX 0000–0999Assigned AIRUS, INC. - AR 578H BLYTHEVL AR
2019-10-14 870-970-1XXX 1000–1999Assigned AIRUS, INC. - AR 578H FORREST CY AR
2019-10-11 870-860-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F HARDY AR
2019-10-11 870-860-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F HARDY AR
2019-10-10 870-464-0XXX 0000–0999Assigned AIRUS, INC. - AR 578H ARKADLPHIA AR
2019-10-10 870-629-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C W MEMPHIS AR
2019-09-12 870-517-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-09-12 870-517-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-09-10 870-376-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 BATESVILLE AR
2019-09-09 870-621-7XXX 7000–7999Assigned METROPCS, INC. 5562 TEXARKANA AR
2019-09-09 870-621-8XXX 8000–8999Assigned METROPCS, INC. 5562 TEXARKANA AR
2019-09-03 870-497-1XXX 1000–1999Assigned AIRUS, INC. - AR 578H JONESBORO AR
2019-08-27 870-205-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 PARAGOULD AR
2019-08-27 870-542-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 FOREMAN AR
2019-08-23 870-580-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C MT HOME AR
2019-08-22 870-650-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C TRUMANN AR
2019-08-16 870-888-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 ASHDOWN AR
2019-08-15 870-409-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 BLYTHEVL AR
2019-07-11 870-590-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C SMACKOVER AR
2019-07-09 870-666-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C JONESBORO AR
2019-06-28 870-659-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 STUTTGART AR
2019-06-25 870-705-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 ASH FLAT AR
2019-06-21 870-744-0XXX 0000–0999Assigned TELNYX LLC 073H TUPELO AR
2019-06-20 870-664-8XXX 8000–8999Assigned TELNYX LLC 073H NEWPORT AR
2019-06-13 870-713-0XXX 0000–0999Assigned CSC WIRELESS, LLC 425J EL DORADO AR
2019-06-07 870-644-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WATSON AR
2019-06-06 870-590-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 SMACKOVER AR
2019-06-06 870-690-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 MCGEHEE AR
2019-06-06 870-953-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 STAMPS AR
2019-06-04 870-707-1XXX 1000–1999Assigned CSC WIRELESS, LLC 425J LAKEVIEW AR
2019-06-04 870-707-8XXX 8000–8999Assigned CSC WIRELESS, LLC 425J LAKEVIEW AR
2019-06-04 870-707-9XXX 9000–9999Assigned CSC WIRELESS, LLC 425J LAKEVIEW AR
2019-05-08 870-721-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 WASHINGTON AR
2019-05-03 870-433-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F CHEROKEVLG AR
2019-04-25 870-271-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C HARRISBURG AR
2019-04-25 870-716-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-04-25 870-716-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2019-04-25 870-716-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON 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.