NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

12 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 608
ONVOY, LLC - WI 6
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 4
NEW CINGULAR WIRELESS PCS, LLC - IL 1
AHOI 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
2022-05-25 608-453-7XXX 7000–7999Assigned TDS METROCOM, LLC 520K SUNPRAIRIE WI
2022-05-10 608-391-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 BOSCOBEL WI
2022-05-10 608-419-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PACKWAUKEE WI
2022-05-10 608-419-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PACKWAUKEE WI
2022-05-10 608-419-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PACKWAUKEE WI
2022-05-10 608-621-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2022-05-09 608-805-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C REEDSBURG WI
2022-05-09 608-805-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C REEDSBURG WI
2022-05-03 608-810-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 PORTAGE WI
2022-04-29 608-704-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WEST SALEM WI
2022-04-20 608-706-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 TOMAH WI
2022-04-19 608-761-5XXX 5000–5999Assigned VERNON COMMUNICATIONS COOPERATIVE 717E SENECA WI
2022-04-19 608-885-4XXX 4000–4999Assigned UNITED STATES CELLULAR - WI 6274 LANCASTER WI
2022-04-06 608-690-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2022-03-18 608-939-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J MONROE CTR WI
2022-03-18 608-995-5XXX 5000–5999Assigned TON80 COMMUNICATIONS, LLC 516J VERONA WI
2022-03-14 608-419-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PACKWAUKEE WI
2022-03-08 608-740-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J MADISON WI
2022-03-07 608-506-2XXX 2000–2999Assigned TECH COM, INC. - WI 2556 WONEWOC WI
2022-03-07 608-840-0XXX 0000–0999Assigned TON80 COMMUNICATIONS, LLC 516J MONTICELLO WI
2022-03-03 608-760-0XXX 0000–0999Assigned TON80 COMMUNICATIONS, LLC 516J TREMPEALEU WI
2022-03-03 608-869-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J LODI WI
2022-03-01 608-978-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J MARSHALL WI
2022-02-28 608-880-0XXX 0000–0999Assigned TON80 COMMUNICATIONS, LLC 516J WITWEN WI
2022-02-28 608-998-8XXX 8000–8999Assigned TON80 COMMUNICATIONS, LLC 516J VIOLA WI
2022-02-24 608-992-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J SABIN WI
2022-02-24 608-997-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J WAUNAKEE WI
2022-02-23 608-621-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MADISON WI
2022-02-23 608-773-0XXX 0000–0999Assigned MID-PLAINS TEL., INC. 0881 CROSS PL WI
2022-02-23 608-773-5XXX 5000–5999Assigned MID-PLAINS TEL., INC. 0881 CROSS PL WI
2022-02-23 608-773-8XXX 8000–8999Assigned MID-PLAINS TEL., INC. 0881 CROSS PL WI
2022-02-23 608-773-9XXX 9000–9999Assigned MID-PLAINS TEL., INC. 0881 CROSS PL WI
2022-02-17 608-878-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J STEUBEN WI
2022-02-17 608-908-9XXX 9000–9999Assigned TON80 COMMUNICATIONS, LLC 516J WAUMANDEE WI
2022-02-17 608-936-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J WAUZEKA WI
2022-02-17 608-945-4XXX 4000–4999Assigned TON80 COMMUNICATIONS, LLC 516J MOUNT ZION WI
2022-02-17 608-947-3XXX 3000–3999Assigned TON80 COMMUNICATIONS, LLC 516J LIBETYPOLE WI
2022-02-17 608-969-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J WIOTA WI
2022-02-08 608-671-2XXX 2000–2999Assigned UNITED STATES CELLULAR - WI 6274 BELOIT WI
2022-02-04 608-414-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MINERAL PT WI
2022-02-02 608-508-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C WESTFIELD WI
2022-02-01 608-499-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 HAZELGREEN WI
2022-02-01 608-590-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MADISON WI
2022-02-01 608-671-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 BELOIT WI
2022-02-01 608-690-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2022-01-31 608-816-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 LA CROSSE WI
2022-01-27 608-932-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J LA VALLE WI
2022-01-25 608-619-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 COONVALLEY WI
2022-01-25 608-679-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 STODDARD WI
2022-01-18 608-801-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F DE FOREST WI

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.