NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

8 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 920
ONVOY, LLC - WI 3
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 2
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 1
T-MOBILE USA, INC. 1
INTRADO COMMUNICATIONS, 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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2021-05-25 920-877-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H HORTONVL WI
2021-05-25 920-878-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H NEW LONDON WI
2021-05-25 920-880-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H ALGOMA WI
2021-05-25 920-890-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H EGG HARBOR WI
2021-05-25 920-895-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H KEWAUNEE WI
2021-05-25 920-938-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SHIOCTON WI
2021-05-25 920-975-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H WAYSIDE WI
2021-05-25 920-990-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H RIPON WI
2021-05-13 920-808-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2021-05-13 920-808-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2021-05-13 920-808-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OSHKOSH WI
2021-05-11 920-374-5XXX 5000–5999Assigned METROPCS, INC. 5562 MANITOWOC WI
2021-05-11 920-374-7XXX 7000–7999Assigned METROPCS, INC. 5562 MANITOWOC WI
2021-05-08 920-601-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - WI 5489 WRIGHTSTN WI
2021-05-05 920-417-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2021-05-05 920-417-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2021-05-05 920-417-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2021-05-05 920-417-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2021-05-05 920-480-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2021-05-05 920-480-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2021-05-05 920-480-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2021-05-05 920-480-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2021-05-05 920-480-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2021-05-05 920-480-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY WI
2021-05-04 920-253-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C WATERTOWN WI
2021-05-04 920-276-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C THERESA WI
2021-05-04 920-276-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C THERESA WI
2021-05-04 920-298-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C TWO RIVERS WI
2021-05-04 920-443-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C REEDSVILLE WI
2021-05-04 920-447-0XXX 0000–0999Assigned ONVOY, LLC - WI 225C RANDOMLAKE WI
2021-05-04 920-463-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C RANDOLPH WI
2021-05-04 920-477-7XXX 7000–7999Assigned ONVOY, LLC - WI 225C EDEN WI
2021-05-04 920-477-9XXX 9000–9999Assigned ONVOY, LLC - WI 225C EDEN WI
2021-05-04 920-614-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C RIO WI
2021-05-04 920-624-3XXX 3000–3999Assigned ONVOY, LLC - WI 225C ST CLOUD WI
2021-05-04 920-697-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C TISCHMILLS WI
2021-05-04 920-741-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C BRUSSELS WI
2021-05-04 920-775-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C VALDERS WI
2021-05-04 920-775-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C VALDERS WI
2021-05-04 920-796-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C WHITELAW WI
2021-05-04 920-827-8XXX 8000–8999Assigned ONVOY, LLC - WI 225C NEWHOLSTEN WI
2021-05-04 920-852-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C ROSENDALE WI
2021-05-04 920-881-5XXX 5000–5999Assigned ONVOY, LLC - WI 225C ST NAZIANZ WI
2021-05-04 920-881-6XXX 6000–6999Assigned ONVOY, LLC - WI 225C ST NAZIANZ WI
2021-05-04 920-935-2XXX 2000–2999Assigned ONVOY, LLC - WI 225C PICKETT WI
2021-05-04 920-937-4XXX 4000–4999Assigned ONVOY, LLC - WI 225C OAKFIELD WI
2021-05-03 920-480-1XXX 1000–1999Assigned IP HORIZON LLC 515J GREEN BAY WI
2021-04-27 920-769-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 6508 MANITOWOC WI
2021-04-22 920-842-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SURING WI
2021-04-21 920-384-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GREEN BAY 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.