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
2018-10-23 870-912-8XXX 8000–8999Assigned TELNYX LLC 073H NASHVILLE AR
2018-10-23 870-970-0XXX 0000–0999Assigned TELNYX LLC 073H FORREST CY AR
2018-10-22 870-517-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 HARRISON AR
2018-10-22 870-517-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HARRISON AR
2018-10-22 870-517-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HARRISON AR
2018-10-22 870-804-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F TUCKERMAN AR
2018-10-18 870-232-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 MT HOME AR
2018-10-18 870-376-1XXX 1000–1999Assigned TELNYX LLC 073H BATESVILLE AR
2018-10-18 870-393-5XXX 5000–5999Assigned TELNYX LLC 073H JONESBORO AR
2018-10-10 870-359-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F HOPE AR
2018-10-10 870-359-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F HOPE AR
2018-10-10 870-617-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F ARKADLPHIA AR
2018-10-10 870-617-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F ARKADLPHIA AR
2018-10-04 870-250-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C FORDYCE AR
2018-10-03 870-724-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F GURDON AR
2018-09-28 870-251-0XXX 0000–0999Assigned AIRUS, INC. - AR 578H BATESVILLE AR
2018-09-28 870-686-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - AR 196F BODCAW AR
2018-09-24 870-608-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BEARDEN AR
2018-09-24 870-800-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F ROSSTON AR
2018-09-21 870-414-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HARRISON AR
2018-09-18 870-399-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F BLEVINS AR
2018-09-18 870-432-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F PRESCOTT AR
2018-09-18 870-751-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F ASH FLAT AR
2018-09-18 870-900-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F VIOLA AR
2018-09-18 870-955-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F HARDY AR
2018-09-07 870-204-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2018-09-07 870-204-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2018-09-07 870-280-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2018-09-07 870-280-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2018-09-07 870-302-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2018-09-07 870-302-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2018-09-07 870-302-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 6805 HARRISON AR
2018-08-29 870-324-8XXX 8000–8999Assigned E. RITTER COMMUNICATIONS, LLC 128L PIGGOTT AR
2018-08-27 870-359-0XXX 0000–0999Assigned ONVOY, LLC - AR 348F HOPE AR
2018-08-27 870-359-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F HOPE AR
2018-08-27 870-568-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F ARKADLPHIA AR
2018-08-27 870-568-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F ARKADLPHIA AR
2018-08-15 870-925-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C MURFREESBO AR
2018-08-13 870-393-0XXX 0000–0999Assigned AIRUS, INC. - AR 578H JONESBORO AR
2018-08-13 870-497-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2018-08-13 870-497-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2018-08-13 870-497-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2018-08-13 870-497-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2018-08-13 870-497-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2018-08-13 870-497-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2018-08-08 870-393-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2018-08-08 870-393-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 JONESBORO AR
2018-08-07 870-360-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2018-08-07 870-360-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF AR
2018-08-07 870-360-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 PINE BLUFF 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.