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
2005-02-23 630-657-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WARRENVL IL
2005-02-22 630-361-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ITASCA IL
2005-02-22 630-496-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K BENSENVL IL
2005-02-17 630-806-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2005-02-15 630-457-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GENEVA IL
2005-02-15 630-503-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K ELGIN IL
2005-02-14 630-246-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BARTLETT IL
2005-02-14 630-870-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 AURORA IL
2005-02-10 630-589-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2005-02-08 630-590-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HINSDALE IL
2005-02-07 630-524-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ST CHARLES IL
2005-02-03 630-409-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SUGARGROVE IL
2005-02-03 630-621-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 W CHICAGO IL
2005-02-02 630-687-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 NAPERVILLE IL
2005-02-02 630-981-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2005-02-02 630-981-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2005-01-27 630-233-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K BARTLETT IL
2005-01-27 630-313-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K GENEVA IL
2005-01-27 630-338-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K ST CHARLES IL
2005-01-27 630-433-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K ELMHURST IL
2005-01-27 630-639-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2005-01-27 630-818-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K W CHICAGO IL
2005-01-26 630-225-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K WARRENVL IL
2005-01-26 630-228-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K ITASCA IL
2005-01-26 630-239-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K BATAVIA IL
2005-01-26 630-273-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K PLANO IL
2005-01-26 630-303-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 NAPERVILLE IL
2005-01-26 630-339-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K ROSELLE IL
2005-01-26 630-343-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K LEMONT IL
2005-01-26 630-344-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K WHEATON IL
2005-01-26 630-348-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K GLEN ELLYN IL
2005-01-26 630-358-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K KANEVILLE IL
2005-01-26 630-379-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2005-01-26 630-383-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K OSWEGO IL
2005-01-26 630-385-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K YORKVILLE IL
2005-01-26 630-387-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K ELBURN IL
2005-01-26 630-391-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K SUGARGROVE IL
2005-01-26 630-427-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K DOWNERSGRV IL
2005-01-26 630-451-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K BENSENVL IL
2005-01-26 630-517-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WHEATON IL
2005-01-26 630-818-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2005-01-26 630-957-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2005-01-26 630-957-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2005-01-25 630-243-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LEMONT IL
2005-01-25 630-246-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BARTLETT IL
2005-01-25 630-413-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HINSDALE IL
2005-01-25 630-592-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELMHURST IL
2005-01-25 630-948-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BENSENVL IL
2005-01-13 630-229-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2005-01-13 630-303-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 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.