NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 815
VERSATEL LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 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
2019-08-08 815-270-3XXX 3000–3999Assigned ONVOY, LLC 224C ROSCOE IL
2019-08-08 815-270-6XXX 6000–6999Assigned ONVOY, LLC 224C ROSCOE IL
2019-08-08 815-336-3XXX 3000–3999Assigned ONVOY, LLC 224C COLETA IL
2019-08-08 815-384-1XXX 1000–1999Assigned ONVOY, LLC 224C CRESTON IL
2019-08-08 815-393-1XXX 1000–1999Assigned ONVOY, LLC 224C MONROE CTR IL
2019-08-08 815-453-4XXX 4000–4999Assigned ONVOY, LLC 224C ASHTON IL
2019-08-08 815-456-1XXX 1000–1999Assigned ONVOY, LLC 224C FRANKLIGRV IL
2019-08-08 815-522-1XXX 1000–1999Assigned ONVOY, LLC 224C KIRKLAND IL
2019-08-08 815-551-2XXX 2000–2999Assigned ONVOY, LLC 224C LANARK IL
2019-08-08 815-569-0XXX 0000–0999Assigned ONVOY, LLC 224C CAPRON IL
2019-08-08 815-569-5XXX 5000–5999Assigned ONVOY, LLC 224C CAPRON IL
2019-08-08 815-597-0XXX 0000–0999Assigned ONVOY, LLC 224C GARDENPRRI IL
2019-08-08 815-597-2XXX 2000–2999Assigned ONVOY, LLC 224C GARDENPRRI IL
2019-08-08 815-624-3XXX 3000–3999Assigned ONVOY, LLC 224C ROCKTON IL
2019-08-08 815-645-0XXX 0000–0999Assigned ONVOY, LLC 224C STILMANVLY IL
2019-08-08 815-645-9XXX 9000–9999Assigned ONVOY, LLC 224C STILMANVLY IL
2019-08-08 815-765-4XXX 4000–4999Assigned ONVOY, LLC 224C POPLAR GRV IL
2019-08-08 815-827-1XXX 1000–1999Assigned ONVOY, LLC 224C MAPLE PARK IL
2019-08-08 815-855-2XXX 2000–2999Assigned ONVOY, LLC 224C MILLEDGEVL IL
2019-08-08 815-857-8XXX 8000–8999Assigned ONVOY, LLC 224C AMBOY IL
2019-08-08 815-913-2XXX 2000–2999Assigned ONVOY, LLC 224C CHADWICK IL
2019-08-08 815-957-6XXX 6000–6999Assigned ONVOY, LLC 224C ROCKTON IL
2019-08-07 815-234-0XXX 0000–0999Assigned ONVOY, LLC 224C BYRON IL
2019-08-07 815-368-2XXX 2000–2999Assigned ONVOY, LLC 224C LOSTANT IL
2019-08-07 815-406-0XXX 0000–0999Assigned ONVOY, LLC 224C BYRON IL
2019-08-07 815-655-2XXX 2000–2999Assigned ONVOY, LLC 224C COAL CITY IL
2019-08-07 815-658-2XXX 2000–2999Assigned ONVOY, LLC 224C NEWARK IL
2019-08-07 815-783-2XXX 2000–2999Assigned ONVOY, LLC 224C GILMAN IL
2019-08-05 815-248-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DURAND IL
2019-08-02 815-604-6XXX 6000–6999Assigned ONVOY, LLC 224C BELVIDERE IL
2019-08-02 815-604-7XXX 7000–7999Assigned ONVOY, LLC 224C BELVIDERE IL
2019-08-02 815-658-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 NEWARK IL
2019-08-01 815-604-8XXX 8000–8999Assigned ONVOY, LLC 224C BELVIDERE IL
2019-08-01 815-948-4XXX 4000–4999Assigned MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 846F HOOPPOLE IL
2019-07-29 815-201-8XXX 8000–8999Assigned ONVOY, LLC 224C SHERIDAN IL
2019-07-29 815-269-9XXX 9000–9999Assigned ONVOY, LLC 224C DANFORTH IL
2019-07-29 815-339-3XXX 3000–3999Assigned ONVOY, LLC 224C GRANVILLE IL
2019-07-29 815-428-1XXX 1000–1999Assigned ONVOY, LLC 224C MARTINTON IL
2019-07-29 815-429-1XXX 1000–1999Assigned ONVOY, LLC 224C SHELDON IL
2019-07-29 815-435-6XXX 6000–6999Assigned ONVOY, LLC 224C BEAVERVL IL
2019-07-29 815-446-8XXX 8000–8999Assigned ONVOY, LLC 224C CEDARPOINT IL
2019-07-29 815-473-2XXX 2000–2999Assigned ONVOY, LLC 224C WOODLAND IL
2019-07-29 815-486-5XXX 5000–5999Assigned ONVOY, LLC 224C DONOVAN IL
2019-07-29 815-495-1XXX 1000–1999Assigned ONVOY, LLC 224C LELAND IL
2019-07-29 815-627-1XXX 1000–1999Assigned ONVOY, LLC 224C PAW PAW IL
2019-07-29 815-682-2XXX 2000–2999Assigned ONVOY, LLC 224C STOCKLAND IL
2019-07-29 815-771-7XXX 7000–7999Assigned ONVOY, LLC 224C ASHKUM IL
2019-07-29 815-781-8XXX 8000–8999Assigned ONVOY, LLC 224C CHEBANSE IL
2019-07-29 815-826-8XXX 8000–8999Assigned ONVOY, LLC 224C SOMONAUK IL
2019-07-29 815-884-4XXX 4000–4999Assigned ONVOY, LLC 224C EARLVILLE IL

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.