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
2020-10-16 870-790-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - AR 5179 JONESBORO AR
2020-10-14 870-290-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C DELIGHT AR
2020-10-14 870-729-0XXX 0000–0999Assigned E. RITTER COMMUNICATIONS, LLC 128L HOPE AR
2020-10-14 870-801-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C MARSHALL AR
2020-10-13 870-208-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J WYNNE AR
2020-10-13 870-477-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J CASH AR
2020-10-13 870-572-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J HELENA AR
2020-10-13 870-578-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J HARRISBURG AR
2020-10-13 870-641-9XXX 9000–9999Assigned HD CARRIER LLC 321J JONESBORO AR
2020-10-13 870-668-4XXX 4000–4999Assigned TERRA NOVA TELECOM INC. 145J CONCORD AR
2020-10-13 870-697-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J HICKORYRDG AR
2020-10-13 870-768-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J MORO AR
2020-10-13 870-838-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J BLYTHEVL AR
2020-10-13 870-886-8XXX 8000–8999Assigned TERRA NOVA TELECOM INC. 145J WALNUT RDG AR
2020-10-13 870-898-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J ASHDOWN AR
2020-10-12 870-282-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST CHARLES AR
2020-10-12 870-282-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST CHARLES AR
2020-10-09 870-372-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - AR 802C CLARENDON AR
2020-10-09 870-447-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LESLIE AR
2020-10-09 870-528-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 JESUP AR
2020-10-09 870-873-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMPHREY AR
2020-10-09 870-873-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMPHREY AR
2020-10-09 870-874-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F BLEVINS AR
2020-10-09 870-874-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F BLEVINS AR
2020-09-29 870-339-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F HUGHES AR
2020-09-21 870-618-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2020-09-21 870-618-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2020-09-21 870-618-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2020-09-21 870-618-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2020-09-21 870-618-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2020-09-21 870-618-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2020-09-21 870-618-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2020-09-21 870-618-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2020-09-21 870-618-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2020-09-21 870-618-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EL DORADO AR
2020-09-17 870-227-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F TRUMANN AR
2020-09-17 870-259-4XXX 4000–4999Assigned ONVOY, LLC - AR 348F KNOBEL AR
2020-09-17 870-259-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F KNOBEL AR
2020-09-17 870-276-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F SUCCESS AR
2020-09-17 870-276-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F SUCCESS AR
2020-09-17 870-335-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F PARAGOULD AR
2020-09-17 870-335-3XXX 3000–3999Assigned ONVOY, LLC - AR 348F PARAGOULD AR
2020-09-17 870-477-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F CASH AR
2020-09-17 870-477-9XXX 9000–9999Assigned ONVOY, LLC - AR 348F CASH AR
2020-09-17 870-493-7XXX 7000–7999Assigned ONVOY, LLC - AR 348F DELL AR
2020-09-17 870-493-8XXX 8000–8999Assigned ONVOY, LLC - AR 348F DELL AR
2020-09-17 870-521-1XXX 1000–1999Assigned ONVOY, LLC - AR 348F NEWARK AR
2020-09-17 870-521-2XXX 2000–2999Assigned ONVOY, LLC - AR 348F NEWARK AR
2020-09-17 870-558-5XXX 5000–5999Assigned ONVOY, LLC - AR 348F JONESBORO AR
2020-09-17 870-558-6XXX 6000–6999Assigned ONVOY, LLC - AR 348F JONESBORO 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.