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
2021-05-26 608-813-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H BLACKEARTH WI
2021-05-26 608-818-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H MONTELLO WI
2021-05-26 608-830-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H MIDDLETON WI
2021-05-26 608-862-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H ALBANY WI
2021-05-26 608-883-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H RICHMOND WI
2021-05-26 608-892-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H WARRENS WI
2021-05-26 608-912-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H DE FOREST WI
2021-05-26 608-925-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SOUTHWAYNE WI
2021-05-26 608-967-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HOLLANDALE WI
2021-05-26 608-975-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H BELLEVILLE WI
2021-05-26 608-979-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H VIROQUA WI
2021-05-14 608-730-9XXX 9000–9999Assigned HD CARRIER LLC 321J STOUGHTON WI
2021-05-11 608-315-3XXX 3000–3999Assigned METROPCS, INC. 5562 TOMAH WI
2021-05-07 608-739-0XXX 0000–0999Assigned TECH COM, INC. - WI 2556 MUSCODA WI
2021-05-04 608-300-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C BLANCHADVL WI
2021-05-04 608-408-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C BRIGGSVL WI
2021-05-04 608-408-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C BRIGGSVL WI
2021-05-04 608-420-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C ALBANY WI
2021-05-04 608-420-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C ALBANY WI
2021-05-04 608-493-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C MERRIMAC WI
2021-05-04 608-564-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C MONROE CTR WI
2021-05-04 608-583-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C LONE ROCK WI
2021-05-04 608-588-1XXX 1000–1999Assigned ONVOY, LLC - WI 225C SPG GREEN WI
2021-05-04 608-610-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C LIME RIDGE WI
2021-05-04 608-655-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C MARSHALL WI
2021-05-04 608-684-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C FOOTVILLE WI
2021-05-04 608-710-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C MADISON WI
2021-05-04 608-727-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C LOGANVILLE WI
2021-05-04 608-766-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C ELROY WI
2021-05-04 608-812-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C ARENA WI
2021-05-04 608-818-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C MONTELLO WI
2021-05-04 608-924-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C RIDGEWAY WI
2021-05-04 608-924-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C RIDGEWAY WI
2021-05-04 608-938-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C MONTICELLO WI
2021-05-04 608-967-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C HOLLANDALE WI
2021-05-03 608-486-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C BANGOR WI
2021-05-03 608-673-1XXX 1000–1999Assigned IP HORIZON LLC 515J MADISON WI
2021-04-29 608-568-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DICKEYVL WI
2021-04-28 608-717-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NO FREEDOM WI
2021-04-26 608-704-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WEST SALEM WI
2021-04-21 608-418-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALMA WI
2021-04-20 608-865-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 GALESVILLE WI
2021-04-15 608-710-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 MADISON WI
2021-04-13 608-707-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-04-13 608-707-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-04-13 608-707-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-04-13 608-707-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-04-13 608-722-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-04-13 608-722-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MADISON WI
2021-04-13 608-722-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MADISON 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.