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
2005-01-13 630-398-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARTLETT IL
2005-01-13 630-398-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BARTLETT IL
2005-01-13 630-433-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2005-01-13 630-456-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WHEATON IL
2005-01-13 630-550-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BARTLETT IL
2005-01-12 630-786-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K DOWNERSGRV IL
2005-01-11 630-748-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 LOMBARD IL
2005-01-06 630-559-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2005-01-04 630-396-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K LOMBARD IL
2005-01-03 630-405-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2005-01-03 630-405-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2005-01-03 630-433-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2004-12-17 630-379-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2004-12-17 630-618-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-12-16 630-278-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2004-12-16 630-278-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2004-12-16 630-883-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELGIN IL
2004-12-13 630-618-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K AURORA IL
2004-12-10 630-405-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AURORA IL
2004-12-10 630-405-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AURORA IL
2004-12-10 630-405-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AURORA IL
2004-12-10 630-786-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K DOWNERSGRV IL
2004-12-09 630-433-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2004-12-02 630-324-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DOWNERSGRV IL
2004-12-02 630-748-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LOMBARD IL
2004-11-30 630-749-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2004-11-18 630-618-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J AURORA IL
2004-11-17 630-618-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 AURORA IL
2004-11-17 630-618-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-11-16 630-729-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K DOWNERSGRV IL
2004-11-16 630-967-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K DOWNERSGRV IL
2004-11-16 630-967-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K DOWNERSGRV IL
2004-11-11 630-415-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2004-11-10 630-303-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-11-10 630-580-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J WHEATON IL
2004-11-10 630-618-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AURORA IL
2004-11-05 630-618-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-11-02 630-625-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J ITASCA IL
2004-10-26 630-874-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K DOWNERSGRV IL
2004-10-21 630-517-1XXX 1000–1999Assigned ILLINOIS BELL TEL CO 9329 WHEATON IL
2004-10-19 630-873-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LOMBARD IL
2004-10-15 630-618-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-10-15 630-618-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-10-15 630-618-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-10-14 630-995-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 NAPERVILLE IL
2004-10-13 630-233-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K BARTLETT IL
2004-10-13 630-239-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K BATAVIA IL
2004-10-13 630-315-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K WHEATON IL
2004-10-13 630-348-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K GLEN ELLYN IL
2004-10-13 630-358-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K KANEVILLE 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.