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
2005-09-30 630-478-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELMHURST IL
2005-09-30 630-503-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELGIN IL
2005-09-30 630-503-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELGIN IL
2005-09-29 630-361-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ITASCA IL
2005-09-29 630-812-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LOMBARD IL
2005-09-29 630-812-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LOMBARD IL
2005-09-28 630-607-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J ELMHURST IL
2005-09-22 630-345-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 GENEVA IL
2005-09-20 630-659-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K ST CHARLES IL
2005-09-19 630-303-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K NAPERVILLE IL
2005-09-08 630-809-8XXX 8000–8999Assigned METROPCS, INC. 5562 AURORA IL
2005-09-08 630-864-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2005-09-08 630-903-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2005-09-07 630-230-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HINSDALE IL
2005-09-07 630-358-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 KANEVILLE IL
2005-09-07 630-549-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ST CHARLES IL
2005-08-26 630-550-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BARTLETT IL
2005-08-26 630-809-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2005-08-25 630-562-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 W CHICAGO IL
2005-08-24 630-517-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WHEATON IL
2005-08-18 630-444-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ST CHARLES IL
2005-08-18 630-907-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C AURORA IL
2005-08-15 630-270-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 AURORA IL
2005-08-15 630-395-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DOWNERSGRV IL
2005-08-15 630-427-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DOWNERSGRV IL
2005-08-10 630-743-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2005-08-10 630-743-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2005-08-10 630-945-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ST CHARLES IL
2005-08-10 630-947-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 AURORA IL
2005-08-01 630-239-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BATAVIA IL
2005-08-01 630-239-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BATAVIA IL
2005-08-01 630-239-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BATAVIA IL
2005-08-01 630-270-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2005-08-01 630-496-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BENSENVL IL
2005-08-01 630-496-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BENSENVL IL
2005-08-01 630-677-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 GENEVA IL
2005-07-27 630-261-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LOMBARD IL
2005-07-20 630-216-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BIG ROCK IL
2005-07-20 630-216-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 BIG ROCK IL
2005-07-20 630-230-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 HINSDALE IL
2005-07-20 630-230-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 HINSDALE IL
2005-07-20 630-230-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 HINSDALE IL
2005-07-20 630-468-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 HINSDALE IL
2005-07-20 630-468-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 HINSDALE IL
2005-07-20 630-468-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 HINSDALE IL
2005-07-20 630-658-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WARRENVL IL
2005-07-20 630-658-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WARRENVL IL
2005-07-20 630-658-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WARRENVL IL
2005-07-20 630-946-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 NAPERVILLE IL
2005-07-20 630-995-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 NAPERVILLE 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.