NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

3 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
2004-04-28 630-849-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-04-16 630-310-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DOWNERSGRV IL
2004-04-08 630-299-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-04-07 630-458-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ELMHURST IL
2004-03-25 630-299-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-03-15 630-639-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 W CHICAGO IL
2004-03-09 630-339-6XXX 6000–6999Assigned METROPCS, INC. 5562 ROSELLE IL
2004-03-09 630-392-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-03-09 630-615-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-03-09 630-615-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-03-09 630-615-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-03-09 630-615-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-03-09 630-825-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2004-03-09 630-825-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2004-03-09 630-825-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2004-03-09 630-825-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2004-03-07 630-299-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J AURORA IL
2004-02-25 630-229-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-02-25 630-723-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-02-20 630-621-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-02-20 630-779-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-02-20 630-779-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-02-20 630-779-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-02-20 630-779-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-02-20 630-779-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-02-17 630-379-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2004-02-17 630-392-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K NAPERVILLE IL
2004-02-17 630-392-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-17 630-392-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-17 630-440-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 W CHICAGO IL
2004-02-16 630-310-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K DOWNERSGRV IL
2004-02-16 630-485-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J ST CHARLES IL
2004-02-16 630-626-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ITASCA IL
2004-02-13 630-392-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-392-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-687-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-687-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-687-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-687-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-13 630-687-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-02-06 630-523-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2004-02-06 630-523-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ROSELLE IL
2004-02-04 630-523-2XXX 2000–2999Assigned METROPCS, INC. 5562 ROSELLE IL
2004-01-28 630-607-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2004-01-28 630-607-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2004-01-28 630-723-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-01-27 630-687-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2004-01-21 630-392-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-01-21 630-392-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-01-21 630-392-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.