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 616
NEW CINGULAR WIRELESS PCS, LLC - IL 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 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
2021-10-18 616-310-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C COOPERSVL MI
2021-10-18 616-326-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ROCKFORD MI
2021-10-18 616-358-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C CEDAR SPG MI
2021-10-18 616-358-8XXX 8000–8999Assigned ONVOY, LLCV - MI 543C CEDAR SPG MI
2021-10-18 616-483-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C DUTTON MI
2021-10-18 616-483-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C DUTTON MI
2021-10-18 616-626-7XXX 7000–7999Assigned ONVOY, LLCV - MI 543C BYRON CTR MI
2021-10-18 616-971-6XXX 6000–6999Assigned ONVOY, LLCV - MI 543C DUTTON MI
2021-10-12 616-341-3XXX 3000–3999Assigned TELNET WORLDWIDE, INC. 817J GRAND RPDS MI
2021-10-12 616-747-3XXX 3000–3999Assigned TELNET WORLDWIDE, INC. 817J ROCKFORD MI
2021-10-11 616-210-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ZEELAND MI
2021-10-11 616-341-0XXX 0000–0999Assigned TELNET WORLDWIDE, INC. 817J GRAND RPDS MI
2021-10-01 616-353-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E SAND LAKE MI
2021-09-27 616-343-7XXX 7000–7999Assigned METROPCS, INC. 5562 GREENVILLE MI
2021-09-17 616-699-9XXX 9000–9999Assigned SKYE TELECOM LLC DBA SKYETEL 622J GRAND RPDS MI
2021-09-16 616-766-0XXX 0000–0999Assigned COMMIO, LLC 939H BELDING MI
2021-09-16 616-766-1XXX 1000–1999Assigned COMMIO, LLC 939H BELDING MI
2021-09-16 616-766-9XXX 9000–9999Assigned COMMIO, LLC 939H BELDING MI
2021-09-10 616-779-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRATTAN MI
2021-09-03 616-315-3XXX 3000–3999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2021-09-03 616-315-4XXX 4000–4999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2021-09-03 616-315-5XXX 5000–5999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2021-09-03 616-315-6XXX 6000–6999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2021-09-03 616-315-7XXX 7000–7999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2021-09-03 616-315-8XXX 8000–8999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2021-09-03 616-315-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2021-09-03 616-341-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GRAND RPDS MI
2021-09-01 616-349-9XXX 9000–9999Assigned OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 2964 GRAND RPDS MI
2021-08-30 616-320-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2021-08-30 616-320-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2021-08-30 616-320-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2021-08-30 616-320-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GRAND RPDS MI
2021-08-27 616-868-1XXX 1000–1999Assigned TERRA NOVA TELECOM INC. 145J ALTO MI
2021-08-25 616-320-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-08-25 616-320-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-08-25 616-320-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-08-25 616-320-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-08-25 616-320-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-08-25 616-320-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-08-23 616-500-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E GRAND RPDS MI
2021-08-16 616-766-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J BELDING MI
2021-08-05 616-210-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 6003 ZEELAND MI
2021-08-05 616-465-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J GRAND RPDS MI
2021-07-28 616-693-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CLARKSVL MI
2021-07-21 616-324-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - MI 991E CASNOVIA MI
2021-07-21 616-348-6XXX 6000–6999Assigned FRACTEL, LLC 965H CALEDONIA MI
2021-07-21 616-758-6XXX 6000–6999Assigned FRACTEL, LLC 965H GRANDHAVEN MI
2021-07-20 616-314-4XXX 4000–4999Assigned ONVOY, LLCV - MI 543C ADA MI
2021-07-20 616-314-5XXX 5000–5999Assigned ONVOY, LLCV - MI 543C ADA MI
2021-07-19 616-266-0XXX 0000–0999Assigned ONVOY, LLCV - MI 543C TRUFANT MI

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.