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
2006-05-03 630-246-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BARTLETT IL
2006-04-28 630-384-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K WHEATON IL
2006-04-28 630-446-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K GLEN ELLYN IL
2006-04-28 630-754-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C LEMONT IL
2006-04-28 630-994-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K ROSELLE IL
2006-04-25 630-864-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2006-04-21 630-445-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NAPERVILLE IL
2006-04-19 630-396-4XXX 4000–4999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 LOMBARD IL
2006-04-19 630-447-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WARRENVL IL
2006-04-17 630-445-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 NAPERVILLE IL
2006-04-12 630-864-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NAPERVILLE IL
2006-04-12 630-864-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NAPERVILLE IL
2006-04-04 630-206-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 W CHICAGO IL
2006-04-04 630-270-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2006-04-04 630-274-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BENSENVL IL
2006-04-04 630-386-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 W CHICAGO IL
2006-03-29 630-270-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AURORA IL
2006-03-29 630-270-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AURORA IL
2006-03-22 630-991-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DOWNERSGRV IL
2006-03-15 630-560-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HINSDALE IL
2006-03-15 630-560-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HINSDALE IL
2006-03-14 630-398-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BARTLETT IL
2006-03-14 630-398-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BARTLETT IL
2006-03-14 630-401-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2006-03-14 630-401-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2006-03-09 630-625-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C ITASCA IL
2006-03-09 630-797-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C ST CHARLES IL
2006-03-09 630-809-1XXX 1000–1999Assigned METROPCS, INC. 5562 AURORA IL
2006-03-08 630-457-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C GENEVA IL
2006-03-08 630-937-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C BATAVIA IL
2006-03-08 630-948-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BENSENVL IL
2006-03-08 630-974-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C HINSDALE IL
2006-02-24 630-956-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2006-02-24 630-956-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2006-02-24 630-956-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2006-02-14 630-809-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2006-02-14 630-956-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2006-02-09 630-389-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BATAVIA IL
2006-02-08 630-453-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NAPERVILLE IL
2006-02-08 630-453-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NAPERVILLE IL
2006-02-08 630-453-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NAPERVILLE IL
2006-02-08 630-633-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 LEMONT IL
2006-02-08 630-633-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 LEMONT IL
2006-02-08 630-633-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 LEMONT IL
2006-02-08 630-633-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 LEMONT IL
2006-02-08 630-633-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 LEMONT IL
2006-02-08 630-685-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 LEMONT IL
2006-02-08 630-785-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LOMBARD IL
2006-02-03 630-206-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C W CHICAGO IL
2006-02-03 630-659-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ST CHARLES 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.