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 330
ONVOY, LLC - OH 2
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
2005-06-27 330-470-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 NO CANTON OH
2005-06-25 330-261-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2005-06-23 330-980-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WARREN OH
2005-06-23 330-980-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WARREN OH
2005-06-23 330-984-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 WARREN OH
2005-06-21 330-294-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2005-06-21 330-294-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2005-06-21 330-294-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2005-06-21 330-313-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CANTON OH
2005-06-17 330-622-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2005-06-16 330-423-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2005-06-14 330-259-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 YOUNGSTOWN OH
2005-06-14 330-259-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 YOUNGSTOWN OH
2005-06-10 330-259-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J YOUNGSTOWN OH
2005-06-10 330-259-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J YOUNGSTOWN OH
2005-06-10 330-622-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2005-06-08 330-313-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 CANTON OH
2005-06-08 330-622-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2005-06-07 330-435-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K CRESTON OH
2005-06-07 330-526-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K NO CANTON OH
2005-06-07 330-529-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K MANCHESTR OH
2005-06-07 330-563-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K GREENSBURG OH
2005-06-07 330-624-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K BURBANK OH
2005-06-07 330-756-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K BEACH CITY OH
2005-06-01 330-556-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NEWPHLDLPH OH
2005-06-01 330-556-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NEWPHLDLPH OH
2005-05-27 330-564-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2005-05-26 330-234-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WOOSTER OH
2005-05-25 330-294-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AKRON OH
2005-05-20 330-261-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2005-05-20 330-313-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 CANTON OH
2005-05-20 330-766-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WARREN OH
2005-05-19 330-401-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEWPHLDLPH OH
2005-05-19 330-473-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 MILLERSBG OH
2005-05-18 330-441-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MEDINA OH
2005-05-18 330-591-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MEDINA OH
2005-05-18 330-631-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AKRON OH
2005-05-18 330-631-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AKRON OH
2005-05-18 330-631-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AKRON OH
2005-05-18 330-631-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AKRON OH
2005-05-18 330-631-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AKRON OH
2005-05-18 330-631-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AKRON OH
2005-05-17 330-326-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 WINDHAM OH
2005-05-12 330-519-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 YOUNGSTOWN OH
2005-05-10 330-596-6XXX 6000–6999Assigned OHIO BELL TEL CO 9321 ALLIANCE OH
2005-05-10 330-596-7XXX 7000–7999Assigned OHIO BELL TEL CO 9321 ALLIANCE OH
2005-05-05 330-872-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 NEWTON FLS OH
2005-04-22 330-622-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 AKRON OH
2005-04-20 330-236-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH 7443 MASSILLON OH
2005-04-20 330-401-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OH 6025 NEWPHLDLPH OH

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.