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
2003-01-02 630-592-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELMHURST IL
2002-12-20 630-338-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ST CHARLES IL
2002-12-19 630-243-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LEMONT IL
2002-12-19 630-246-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BARTLETT IL
2002-12-19 630-282-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LOMBARD IL
2002-12-19 630-297-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DOWNERSGRV IL
2002-12-19 630-364-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 NAPERVILLE IL
2002-12-19 630-518-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AURORA IL
2002-12-09 630-607-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2002-12-09 630-699-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2002-12-09 630-699-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2002-11-19 630-715-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST CHARLES IL
2002-11-19 630-715-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST CHARLES IL
2002-11-15 630-699-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2002-11-15 630-699-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2002-11-15 630-699-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2002-11-15 630-699-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2002-11-15 630-699-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2002-11-04 630-343-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 LEMONT IL
2002-10-31 630-699-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2002-10-31 630-699-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2002-10-31 630-699-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 NAPERVILLE IL
2002-10-16 630-657-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 WARRENVL IL
2002-09-30 630-273-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J PLANO IL
2002-09-26 630-468-4XXX 4000–4999Assigned ILLINOIS BELL TEL CO 9329 HINSDALE IL
2002-09-26 630-570-3XXX 3000–3999Assigned ILLINOIS BELL TEL CO 9329 HINSDALE IL
2002-09-26 630-570-8XXX 8000–8999Assigned ILLINOIS BELL TEL CO 9329 HINSDALE IL
2002-09-13 630-532-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J ELMHURST IL
2002-09-12 630-523-1XXX 1000–1999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 ROSELLE IL
2002-09-10 630-301-5XXX 5000–5999Assigned ILLINOIS BELL TEL CO 9329 AURORA IL
2002-09-10 630-301-6XXX 6000–6999Assigned ILLINOIS BELL TEL CO 9329 AURORA IL
2002-08-27 630-882-8XXX 8000–8999Assigned ILLINOIS BELL TEL CO 9329 YORKVILLE IL
2002-08-21 630-344-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K WHEATON IL
2002-08-16 630-590-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HINSDALE IL
2002-08-16 630-590-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HINSDALE IL
2002-08-01 630-544-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J NAPERVILLE IL
2002-07-23 630-821-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WARRENVL IL
2002-07-23 630-821-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WARRENVL IL
2002-05-24 630-862-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 AURORA IL
2002-05-24 630-862-3XXX 3000–3999Assigned ILLINOIS BELL TEL CO 9329 AURORA IL
2002-05-23 630-760-3XXX 3000–3999Assigned ILLINOIS BELL TEL CO 9329 ITASCA IL
2002-05-23 630-760-4XXX 4000–4999Assigned ILLINOIS BELL TEL CO 9329 ITASCA IL
2002-05-16 630-390-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 DOWNERSGRV IL
2002-05-16 630-706-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 HINSDALE IL
2002-05-06 630-313-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 GENEVA IL
2002-05-06 630-345-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 GENEVA IL
2002-04-17 630-385-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J YORKVILLE IL
2002-04-17 630-636-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J OSWEGO IL
2002-03-15 630-391-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SUGARGROVE IL
2001-11-08 630-301-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 AURORA 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.