NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 773
ONVOY, LLC 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
2022-11-09 773-461-3XXX 3000–3999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2022-11-09 773-461-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2022-11-09 773-461-5XXX 5000–5999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2022-11-09 773-461-6XXX 6000–6999Assigned ONVOY, LLC 224C CHICGOZN02 IL
2022-10-21 773-461-1XXX 1000–1999Assigned TELNYX LLC 073H CHICGOZN02 IL
2022-10-10 773-257-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN06 IL
2022-09-01 773-461-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E CHICGOZN02 IL
2022-08-24 773-461-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2022-08-24 773-461-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2022-08-24 773-461-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CHICGOZN02 IL
2022-08-02 773-797-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHICGOZN05 IL
2022-07-27 773-676-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN05 IL
2022-07-26 773-487-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN07 IL
2022-07-26 773-788-3XXX 3000–3999Assigned ONVOY, LLC 224C CHICGOZN08 IL
2022-07-26 773-788-4XXX 4000–4999Assigned ONVOY, LLC 224C CHICGOZN08 IL
2022-07-26 773-873-5XXX 5000–5999Assigned ONVOY, LLC 224C CHICGOZN07 IL
2022-07-25 773-360-9XXX 9000–9999Assigned ONVOY, LLC 224C CHICGOZN04 IL
2022-07-25 773-648-7XXX 7000–7999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2022-07-25 773-648-8XXX 8000–8999Assigned ONVOY, LLC 224C CHICGOZN06 IL
2022-07-21 773-560-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2022-07-21 773-560-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2022-07-06 773-560-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN06 IL
2022-07-06 773-560-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN06 IL
2022-07-06 773-560-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN06 IL
2022-07-06 773-560-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN06 IL
2022-07-06 773-681-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN02 IL
2022-06-06 773-353-9XXX 9000–9999Assigned TERRA NOVA TELECOM INC. 145J CHICGOZN03 IL
2022-05-09 773-560-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2022-05-09 773-560-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2022-05-09 773-560-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2022-04-19 773-541-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN02 IL
2022-04-15 773-389-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN09 IL
2022-04-08 773-357-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J CHICGOZN11 IL
2022-02-14 773-435-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CHICGOZN04 IL
2021-12-29 773-408-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2021-12-29 773-408-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 CHICGOZN06 IL
2021-12-15 773-560-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 CHICGOZN06 IL
2021-12-08 773-309-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN05 IL
2021-12-08 773-309-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN05 IL
2021-12-08 773-413-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN05 IL
2021-12-08 773-413-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN05 IL
2021-12-08 773-446-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN06 IL
2021-12-08 773-446-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN06 IL
2021-12-08 773-516-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN02 IL
2021-12-08 773-654-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN02 IL
2021-12-08 773-754-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN02 IL
2021-12-08 773-765-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN02 IL
2021-12-08 773-854-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN05 IL
2021-12-08 773-906-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN11 IL
2021-12-08 773-922-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H CHICGOZN05 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.