NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

4 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 507
AERIAL COMMUNICATIONS, INC. 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
8X8, INC. 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
2021-05-28 507-551-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LACRESCENT MN
2021-05-25 507-260-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H BALATON MN
2021-05-25 507-318-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H ALBERT LEA MN
2021-05-25 507-363-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H OWATONNA MN
2021-05-25 507-470-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WINONA MN
2021-05-25 507-480-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H KIESTER MN
2021-05-25 507-500-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CALEDONIA MN
2021-05-25 507-501-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CHERRY GRV MN
2021-05-25 507-503-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ADAMS MN
2021-05-25 507-541-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H FULDA MN
2021-05-25 507-554-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LYLE MN
2021-05-25 507-564-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CHATFIELD MN
2021-05-25 507-568-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CLARKS GRV MN
2021-05-25 507-571-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H WASECA MN
2021-05-25 507-598-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H LEROY MN
2021-05-25 507-604-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H LEWISTON MN
2021-05-25 507-605-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BREWSTER MN
2021-05-25 507-606-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H AUSTIN MN
2021-05-25 507-608-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H HERON LAKE MN
2021-05-25 507-610-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H LAFAYETTE MN
2021-05-25 507-618-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H FAIRMONT MN
2021-05-25 507-619-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H FOUNTAIN MN
2021-05-25 507-620-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H WESTBROOK MN
2021-05-25 507-624-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BYRON MN
2021-05-25 507-636-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MOUNTAINLK MN
2021-05-25 507-650-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H NORTHFIELD MN
2021-05-25 507-652-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H KELLOGG MN
2021-05-25 507-656-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H WALDORF MN
2021-05-25 507-662-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H LAKEFIELD MN
2021-05-25 507-666-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H WORTHINGTN MN
2021-05-25 507-680-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H IVANHOE MN
2021-05-25 507-682-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H JANESVILLE MN
2021-05-25 507-693-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H MILLVILLE MN
2021-05-25 507-699-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H GLENVILLE MN
2021-05-25 507-704-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H ALTURA MN
2021-05-25 507-705-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H LAMBERTON MN
2021-05-25 507-707-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H LEOTA MN
2021-05-25 507-708-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H LEWISVILLE MN
2021-05-25 507-709-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H REDWOODFLS MN
2021-05-25 507-713-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H WILMONT MN
2021-05-25 507-715-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H JEFFERS MN
2021-05-25 507-716-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ROUND LAKE MN
2021-05-25 507-717-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H STORDEN MN
2021-05-25 507-757-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CANNON FLS MN
2021-05-25 507-771-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H TYLER MN
2021-05-25 507-782-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H FARIBAULT MN
2021-05-25 507-783-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H WINDOM MN
2021-05-25 507-790-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H BLOOMNPRRI MN
2021-05-25 507-797-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GIBBON MN
2021-05-25 507-799-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H EYOTA MN

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.