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
2018-07-12 815-422-1XXX 1000–1999Assigned TELNYX LLC 073H ST ANNE IL
2018-07-12 815-475-3XXX 3000–3999Assigned TELNYX LLC 073H PLATTVILLE IL
2018-07-12 815-783-0XXX 0000–0999Assigned TELNYX LLC 073H GILMAN IL
2018-07-10 815-314-9XXX 9000–9999Assigned TELNYX LLC 073H MANHATTAN IL
2018-07-10 815-373-9XXX 9000–9999Assigned TELNYX LLC 073H ELWOOD IL
2018-07-10 815-465-0XXX 0000–0999Assigned TELNYX LLC 073H GRANT PARK IL
2018-07-10 815-649-8XXX 8000–8999Assigned TELNYX LLC 073H GARDNER IL
2018-07-10 815-667-0XXX 0000–0999Assigned TELNYX LLC 073H UTICA IL
2018-07-10 815-755-8XXX 8000–8999Assigned TELNYX LLC 073H SENECA IL
2018-07-09 815-629-6XXX 6000–6999Assigned ONVOY, LLC 224C SHIRLAND IL
2018-07-09 815-957-5XXX 5000–5999Assigned ONVOY, LLC 224C ROCKTON IL
2018-07-09 815-974-5XXX 5000–5999Assigned ONVOY, LLC 224C HEBRON IL
2018-07-03 815-205-8XXX 8000–8999Assigned TELNYX LLC 073H COAL CITY IL
2018-07-03 815-242-9XXX 9000–9999Assigned TELNYX LLC 073H MINOOKA IL
2018-07-03 815-317-1XXX 1000–1999Assigned TELNYX LLC 073H CRESCENTCY IL
2018-07-03 815-324-8XXX 8000–8999Assigned TELNYX LLC 073H OTTAWA IL
2018-07-03 815-472-9XXX 9000–9999Assigned TELNYX LLC 073H MOMENCE IL
2018-07-03 815-560-4XXX 4000–4999Assigned TELNYX LLC 073H HARVARD IL
2018-07-02 815-240-2XXX 2000–2999Assigned ONVOY, LLC 224C ROCK CUT IL
2018-07-02 815-270-5XXX 5000–5999Assigned ONVOY, LLC 224C ROSCOE IL
2018-07-02 815-332-0XXX 0000–0999Assigned ONVOY, LLC 224C CHERRY VLY IL
2018-07-02 815-335-9XXX 9000–9999Assigned ONVOY, LLC 224C WINNEBAGO IL
2018-07-02 815-406-6XXX 6000–6999Assigned ONVOY, LLC 224C BYRON IL
2018-07-02 815-566-8XXX 8000–8999Assigned ONVOY, LLC 224C BELVIDERE IL
2018-07-02 815-569-6XXX 6000–6999Assigned ONVOY, LLC 224C CAPRON IL
2018-07-02 815-581-8XXX 8000–8999Assigned ONVOY, LLC 224C SPRING GRV IL
2018-07-02 815-597-5XXX 5000–5999Assigned ONVOY, LLC 224C GARDENPRRI IL
2018-07-02 815-645-5XXX 5000–5999Assigned ONVOY, LLC 224C STILMANVLY IL
2018-07-02 815-800-5XXX 5000–5999Assigned ONVOY, LLC 224C POPLAR GRV IL
2018-07-02 815-862-8XXX 8000–8999Assigned ONVOY, LLC 224C RICHMOND IL
2018-05-04 815-357-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SENECA IL
2018-04-30 815-240-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ROCK CUT IL
2018-04-30 815-503-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MENDOTA IL
2018-04-04 815-957-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ROCKTON IL
2018-04-03 815-420-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ROCKFORD IL
2018-03-08 815-618-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 FREEPORT IL
2018-03-02 815-400-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MORRISON IL
2018-02-23 815-564-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 STERLING IL
2018-02-20 815-418-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MANHATTAN IL
2018-02-07 815-718-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 STERLING IL
2018-01-23 815-692-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 FAIRBURY IL
2018-01-15 815-825-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 MALTA IL
2017-11-20 815-862-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 RICHMOND IL
2017-11-16 815-821-8XXX 8000–8999Assigned METROPCS, INC. 5562 FREEPORT IL
2017-10-24 815-650-0XXX 0000–0999Assigned METROPCS, INC. 5562 FREEPORT IL
2017-10-24 815-650-1XXX 1000–1999Assigned METROPCS, INC. 5562 FREEPORT IL
2017-10-13 815-201-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHERIDAN IL
2017-10-03 815-992-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 STREATOR IL
2017-09-28 815-375-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DE KALB IL
2017-09-08 815-913-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CHADWICK 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.