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
2011-08-22 630-441-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2011-08-22 630-442-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2011-08-19 630-296-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LEMONT IL
2011-08-19 630-359-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELMHURST IL
2011-08-19 630-423-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E AURORA IL
2011-08-17 630-478-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-08-17 630-478-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-08-17 630-501-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-08-17 630-501-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-08-16 630-488-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ST CHARLES IL
2011-08-15 630-423-3XXX 3000–3999Assigned ONVOY, LLC 224C AURORA IL
2011-08-15 630-581-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J HINSDALE IL
2011-08-10 630-520-6XXX 6000–6999Assigned ONVOY, LLC 224C W CHICAGO IL
2011-08-08 630-423-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 AURORA IL
2011-08-02 630-474-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GLEN ELLYN IL
2011-08-02 630-687-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NAPERVILLE IL
2011-07-27 630-449-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-07-27 630-538-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SUGARGROVE IL
2011-07-25 630-442-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DOWNERSGRV IL
2011-07-22 630-412-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BENSENVL IL
2011-07-20 630-687-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NAPERVILLE IL
2011-07-19 630-600-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-07-19 630-600-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-07-19 630-600-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-07-19 630-835-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-07-19 630-835-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-07-19 630-835-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-07-18 630-385-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E YORKVILLE IL
2011-07-18 630-791-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WARRENVL IL
2011-07-14 630-442-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2011-07-08 630-687-6XXX 6000–6999Assigned ACCESS ONE, INC. - IL 5447 NAPERVILLE IL
2011-07-06 630-478-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-07-06 630-478-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-07-06 630-478-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K ELMHURST IL
2011-07-06 630-930-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2011-06-29 630-473-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2011-06-29 630-537-7XXX 7000–7999Assigned ONVOY, LLC 224C HINSDALE IL
2011-06-24 630-791-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WARRENVL IL
2011-06-16 630-506-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-06-09 630-449-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K AURORA IL
2011-06-07 630-473-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E W CHICAGO IL
2011-06-07 630-474-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GLEN ELLYN IL
2011-06-07 630-478-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELMHURST IL
2011-06-07 630-731-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-06-07 630-731-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-06-07 630-731-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-06-07 630-731-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-06-07 630-731-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-06-07 630-731-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2011-06-02 630-449-5XXX 5000–5999Assigned ONVOY, LLC 224C 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.