NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

2 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 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
2021-10-07 815-828-7XXX 7000–7999Assigned TERRA NOVA TELECOM INC. 145J MINOOKA IL
2021-09-30 815-640-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 OTTAWA IL
2021-09-28 815-572-2XXX 2000–2999Assigned TERRA NOVA TELECOM INC. 145J MARENGO IL
2021-09-17 815-247-0XXX 0000–0999Assigned ONVOY, LLC 224C SEWARD IL
2021-09-17 815-283-0XXX 0000–0999Assigned ONVOY, LLC 224C WATERMAN IL
2021-09-14 815-304-0XXX 0000–0999Assigned COMMIO, LLC 939H KANKAKEE IL
2021-09-14 815-304-1XXX 1000–1999Assigned COMMIO, LLC 939H KANKAKEE IL
2021-09-14 815-304-7XXX 7000–7999Assigned COMMIO, LLC 939H KANKAKEE IL
2021-09-14 815-304-8XXX 8000–8999Assigned COMMIO, LLC 939H KANKAKEE IL
2021-09-14 815-331-4XXX 4000–4999Assigned COMMIO, LLC 939H MCHENRY IL
2021-09-14 815-331-7XXX 7000–7999Assigned COMMIO, LLC 939H MCHENRY IL
2021-09-01 815-367-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WINSLOW IL
2021-09-01 815-821-0XXX 0000–0999Assigned UNITED STATES CELLULAR - IL 6265 FREEPORT IL
2021-08-02 815-613-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DIXON IL
2021-07-26 815-247-5XXX 5000–5999Assigned ONVOY, LLC 224C SEWARD IL
2021-07-14 815-454-9XXX 9000–9999Assigned ONVOY, LLC 224C SHEFFIELD IL
2021-07-14 815-629-4XXX 4000–4999Assigned ONVOY, LLC 224C SHIRLAND IL
2021-07-14 815-717-0XXX 0000–0999Assigned TERRA NOVA TELECOM INC. 145J NEW LENOX IL
2021-07-14 815-859-2XXX 2000–2999Assigned ONVOY, LLC 224C ROCHELLE IL
2021-07-14 815-859-3XXX 3000–3999Assigned ONVOY, LLC 224C ROCHELLE IL
2021-07-14 815-938-4XXX 4000–4999Assigned ONVOY, LLC 224C FORRESTON IL
2021-07-14 815-982-6XXX 6000–6999Assigned ONVOY, LLC 224C TAMPICO IL
2021-07-13 815-884-3XXX 3000–3999Assigned ONVOY, LLC 224C EARLVILLE IL
2021-06-30 815-596-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J MARENGO IL
2021-06-29 815-649-9XXX 9000–9999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 GARDNER IL
2021-06-22 815-208-8XXX 8000–8999Assigned METROPCS, INC. 5562 FULTON IL
2021-06-22 815-565-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SAVANNA IL
2021-06-22 815-906-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MT CARROLL IL
2021-06-09 815-247-3XXX 3000–3999Assigned ONVOY, LLC 224C SEWARD IL
2021-06-09 815-362-4XXX 4000–4999Assigned ONVOY, LLC 224C GERMAN VLY IL
2021-06-09 815-367-3XXX 3000–3999Assigned ONVOY, LLC 224C WINSLOW IL
2021-06-09 815-554-2XXX 2000–2999Assigned ONVOY, LLC 224C E DUBUQUE IL
2021-06-09 815-629-3XXX 3000–3999Assigned ONVOY, LLC 224C SHIRLAND IL
2021-06-07 815-771-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H ASHKUM IL
2021-06-03 815-290-6XXX 6000–6999Assigned IP HORIZON LLC 515J MINOOKA IL
2021-06-03 815-617-8XXX 8000–8999Assigned IP HORIZON LLC 515J OTTAWA IL
2021-06-02 815-367-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WINSLOW IL
2021-06-02 815-412-7XXX 7000–7999Assigned IP HORIZON LLC 515J FRANKFORT IL
2021-06-02 815-446-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CEDARPOINT IL
2021-06-02 815-615-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MENDOTA IL
2021-06-02 815-655-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H COAL CITY IL
2021-06-02 815-781-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CHEBANSE IL
2021-06-02 815-799-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MANLIUS IL
2021-06-02 815-918-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CLIFTON IL
2021-05-21 815-328-8XXX 8000–8999Assigned IP HORIZON LLC 515J LOCKPORT IL
2021-05-21 815-565-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SAVANNA IL
2021-05-21 815-676-9XXX 9000–9999Assigned IP HORIZON LLC 515J PLAINFIELD IL
2021-05-18 815-906-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MT CARROLL IL
2021-05-12 815-220-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J LA SALLE IL
2021-05-05 815-247-2XXX 2000–2999Assigned ONVOY, LLC 224C SEWARD IL

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.