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
2019-06-17 815-447-3XXX 3000–3999Assigned ONVOY, LLC 224C DEPUE IL
2019-06-17 815-447-5XXX 5000–5999Assigned ONVOY, LLC 224C DEPUE IL
2019-06-17 815-581-1XXX 1000–1999Assigned ONVOY, LLC 224C SPRING GRV IL
2019-06-17 815-581-9XXX 9000–9999Assigned ONVOY, LLC 224C SPRING GRV IL
2019-06-17 815-862-4XXX 4000–4999Assigned ONVOY, LLC 224C RICHMOND IL
2019-06-17 815-862-5XXX 5000–5999Assigned ONVOY, LLC 224C RICHMOND IL
2019-06-17 815-974-0XXX 0000–0999Assigned ONVOY, LLC 224C HEBRON IL
2019-06-17 815-974-1XXX 1000–1999Assigned ONVOY, LLC 224C HEBRON IL
2019-06-10 815-293-8XXX 8000–8999Assigned ONVOY, LLC 224C LOCKPORT IL
2019-06-10 815-293-9XXX 9000–9999Assigned ONVOY, LLC 224C LOCKPORT IL
2019-06-10 815-457-0XXX 0000–0999Assigned ONVOY, LLC 224C CISSNAPARK IL
2019-06-10 815-457-9XXX 9000–9999Assigned ONVOY, LLC 224C CISSNAPARK IL
2019-06-10 815-479-3XXX 3000–3999Assigned ONVOY, LLC 224C CRYSTAL LK IL
2019-06-10 815-479-4XXX 4000–4999Assigned ONVOY, LLC 224C CRYSTAL LK IL
2019-06-10 815-595-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 OREGON IL
2019-06-10 815-824-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SHABBONA IL
2019-06-10 815-839-2XXX 2000–2999Assigned ONVOY, LLC 224C KANKAKEE IL
2019-06-10 815-839-9XXX 9000–9999Assigned ONVOY, LLC 224C KANKAKEE IL
2019-06-10 815-893-2XXX 2000–2999Assigned ONVOY, LLC 224C CRYSTAL LK IL
2019-06-10 815-893-3XXX 3000–3999Assigned ONVOY, LLC 224C CRYSTAL LK IL
2019-04-23 815-283-2XXX 2000–2999Assigned ONVOY, LLC 224C WATERMAN IL
2019-04-23 815-283-8XXX 8000–8999Assigned ONVOY, LLC 224C WATERMAN IL
2019-04-11 815-551-0XXX 0000–0999Assigned ONVOY, LLC 224C LANARK IL
2019-04-08 815-580-0XXX 0000–0999Assigned ONVOY, LLC 224C CHERRY VLY IL
2019-03-05 815-766-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DE KALB IL
2019-02-21 815-991-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 SYCAMORE IL
2019-02-19 815-655-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 COAL CITY IL
2019-02-13 815-406-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BYRON IL
2019-01-31 815-615-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 MENDOTA IL
2018-12-17 815-800-0XXX 0000–0999Assigned ONVOY, LLC 224C POPLAR GRV IL
2018-12-03 815-205-9XXX 9000–9999Assigned ONVOY, LLC 224C COAL CITY IL
2018-12-03 815-372-7XXX 7000–7999Assigned METROPCS, INC. 5562 LOCKPORT IL
2018-12-03 815-605-2XXX 2000–2999Assigned ONVOY, LLC 224C GRANT PARK IL
2018-12-03 815-620-0XXX 0000–0999Assigned ONVOY, LLC 224C MINOOKA IL
2018-11-30 815-559-5XXX 5000–5999Assigned ONVOY, LLC 224C CHENOA IL
2018-11-28 815-249-2XXX 2000–2999Assigned ONVOY, LLC 224C GRANDRIDGE IL
2018-11-28 815-253-2XXX 2000–2999Assigned ONVOY, LLC 224C KEMPTON IL
2018-11-28 815-365-6XXX 6000–6999Assigned ONVOY, LLC 224C REDDICK IL
2018-11-28 815-368-6XXX 6000–6999Assigned ONVOY, LLC 224C LOSTANT IL
2018-11-28 815-452-8XXX 8000–8999Assigned ONVOY, LLC 224C TOLUCA IL
2018-11-28 815-567-5XXX 5000–5999Assigned ONVOY, LLC 224C CAMPUS IL
2018-11-28 815-635-6XXX 6000–6999Assigned ONVOY, LLC 224C CHATSWORTH IL
2018-11-28 815-647-6XXX 6000–6999Assigned ONVOY, LLC 224C CULLOM IL
2018-11-28 815-657-2XXX 2000–2999Assigned ONVOY, LLC 224C FORREST IL
2018-11-28 815-686-1XXX 1000–1999Assigned ONVOY, LLC 224C PIPER CITY IL
2018-11-28 815-688-6XXX 6000–6999Assigned ONVOY, LLC 224C STRAWN IL
2018-11-28 815-702-2XXX 2000–2999Assigned ONVOY, LLC 224C SAUNEMIN IL
2018-11-28 815-743-3XXX 3000–3999Assigned ONVOY, LLC 224C GRAYMONT IL
2018-11-28 815-796-6XXX 6000–6999Assigned ONVOY, LLC 224C FLANAGAN IL
2018-11-28 815-853-8XXX 8000–8999Assigned ONVOY, LLC 224C WENONA 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.