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
2022-01-14 608-506-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F WONEWOC WI
2022-01-14 608-913-7XXX 7000–7999Assigned TON80 COMMUNICATIONS, LLC 516J COCHRANE WI
2022-01-14 608-926-2XXX 2000–2999Assigned TON80 COMMUNICATIONS, LLC 516J ENDEAVOR WI
2022-01-14 608-942-6XXX 6000–6999Assigned TON80 COMMUNICATIONS, LLC 516J CAZENOVIA WI
2022-01-10 608-508-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC WI 7216 WESTFIELD WI
2022-01-07 608-607-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H JANESVILLE WI
2022-01-07 608-607-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H JANESVILLE WI
2021-12-14 608-502-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F EVANSVILLE WI
2021-12-14 608-601-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MCFARLAND WI
2021-12-14 608-621-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C MADISON WI
2021-12-14 608-621-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MADISON WI
2021-12-14 608-621-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C MADISON WI
2021-12-14 608-621-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C MADISON WI
2021-12-14 608-946-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F EDGERTON WI
2021-12-13 608-895-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-12-13 608-895-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-12-08 608-419-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 PACKWAUKEE WI
2021-12-08 608-860-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 LA CROSSE WI
2021-11-17 608-296-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C WESTFIELD WI
2021-11-17 608-979-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H VIROQUA WI
2021-11-12 608-502-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F EVANSVILLE WI
2021-11-12 608-601-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - WI 007F MCFARLAND WI
2021-11-12 608-714-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MERRIMAC WI
2021-11-08 608-746-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 JANESVILLE WI
2021-11-08 608-746-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 JANESVILLE WI
2021-11-05 608-336-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MONROE WI
2021-11-05 608-389-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BARABOO WI
2021-11-05 608-389-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BARABOO WI
2021-11-05 608-426-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MONROE WI
2021-11-05 608-454-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H OREGON WI
2021-11-05 608-454-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H OREGON WI
2021-11-05 608-706-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H TOMAH WI
2021-11-05 608-706-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H TOMAH WI
2021-11-05 608-810-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 PORTAGE WI
2021-11-03 608-300-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H BLANCHADVL WI
2021-11-03 608-384-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MINERAL PT WI
2021-11-03 608-384-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MINERAL PT WI
2021-11-03 608-401-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H MAZOMANIE WI
2021-11-03 608-401-9XXX 9000–9999Assigned ONVOY SPECTRUM, LLC 624H MAZOMANIE WI
2021-11-03 608-407-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H DODGEVILLE WI
2021-11-03 608-407-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H DODGEVILLE WI
2021-11-03 608-456-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H ORFORDVL WI
2021-11-03 608-456-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H ORFORDVL WI
2021-11-03 608-699-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H CAMBRIDGE 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.