NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 630
ONVOY, LLC 1
EXIANT COMMUNICATIONS LLC 1
BANDWIDTH.COM CLEC, LLC - IL 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
2011-01-26 630-283-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROSELLE IL
2011-01-24 630-426-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K LOMBARD IL
2011-01-21 630-429-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-01-21 630-429-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-01-21 630-429-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-01-21 630-429-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-01-21 630-429-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-01-21 630-429-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-01-20 630-283-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROSELLE IL
2011-01-20 630-449-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AURORA IL
2011-01-14 630-360-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2011-01-14 630-360-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2011-01-14 630-360-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2011-01-14 630-360-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2011-01-13 630-210-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K NAPERVILLE IL
2011-01-13 630-601-4XXX 4000–4999Assigned ONVOY, LLC 224C HINSDALE IL
2011-01-13 630-601-5XXX 5000–5999Assigned ONVOY, LLC 224C HINSDALE IL
2011-01-12 630-210-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2011-01-11 630-441-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2011-01-11 630-441-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2011-01-10 630-423-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 AURORA IL
2011-01-06 630-796-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DOWNERSGRV IL
2011-01-03 630-480-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WHEATON IL
2010-12-28 630-946-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NAPERVILLE IL
2010-12-20 630-708-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E YORKVILLE IL
2010-12-17 630-796-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J DOWNERSGRV IL
2010-12-03 630-318-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BIG ROCK IL
2010-12-03 630-358-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E KANEVILLE IL
2010-12-03 630-448-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELBURN IL
2010-12-03 630-474-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GLEN ELLYN IL
2010-12-03 630-506-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E AURORA IL
2010-12-03 630-909-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WHEATON IL
2010-11-22 630-501-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2010-11-22 630-501-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2010-11-22 630-501-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2010-11-22 630-501-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2010-11-10 630-537-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J HINSDALE IL
2010-11-09 630-657-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J WARRENVL IL
2010-11-03 630-824-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DOWNERSGRV IL
2010-11-01 630-506-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E AURORA IL
2010-11-01 630-537-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HINSDALE IL
2010-11-01 630-708-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E YORKVILLE IL
2010-10-27 630-397-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J GENEVA IL
2010-10-27 630-506-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AURORA IL
2010-10-27 630-599-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LOMBARD IL
2010-10-27 630-948-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BENSENVL IL
2010-10-21 630-473-1XXX 1000–1999Assigned ONVOY, LLC 224C W CHICAGO IL
2010-10-21 630-473-2XXX 2000–2999Assigned ONVOY, LLC 224C W CHICAGO IL
2010-10-19 630-506-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-19 630-506-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AURORA IL

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.