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
2010-10-19 630-506-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-19 630-506-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-19 630-946-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K NAPERVILLE IL
2010-10-08 630-504-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BARTLETT IL
2010-10-07 630-796-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DOWNERSGRV IL
2010-10-06 630-486-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-06 630-486-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-06 630-486-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-06 630-486-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-06 630-486-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-06 630-486-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-06 630-486-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-06 630-486-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2010-10-01 630-233-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARTLETT IL
2010-10-01 630-410-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LEMONT IL
2010-10-01 630-439-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROSELLE IL
2010-10-01 630-465-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SUGARGROVE IL
2010-10-01 630-501-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 ELMHURST IL
2010-10-01 630-501-3XXX 3000–3999Assigned ILLINOIS BELL TEL CO 9329 ELMHURST IL
2010-10-01 630-765-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WHEATON IL
2010-09-03 630-332-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PLANO IL
2010-09-03 630-360-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2010-09-03 630-360-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2010-09-03 630-454-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BATAVIA IL
2010-09-03 630-765-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WHEATON IL
2010-09-02 630-465-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2010-09-02 630-465-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2010-09-02 630-465-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2010-09-02 630-465-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2010-09-01 630-478-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELMHURST IL
2010-09-01 630-486-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J AURORA IL
2010-09-01 630-855-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BARTLETT IL
2010-08-25 630-808-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2010-08-24 630-580-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J WHEATON IL
2010-08-23 630-332-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J PLANO IL
2010-08-20 630-601-1XXX 1000–1999Assigned ONVOY, LLC 224C HINSDALE IL
2010-08-20 630-953-5XXX 5000–5999Assigned ONVOY, LLC 224C LOMBARD IL
2010-08-19 630-656-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LOMBARD IL
2010-08-18 630-538-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SUGARGROVE IL
2010-08-18 630-538-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SUGARGROVE IL
2010-08-18 630-850-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HINSDALE IL
2010-08-13 630-560-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HINSDALE IL
2010-08-12 630-296-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LEMONT IL
2010-08-12 630-447-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WARRENVL IL
2010-08-11 630-733-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BIG ROCK IL
2010-08-11 630-733-3XXX 3000–3999Assigned ONVOY, LLC 224C BIG ROCK IL
2010-08-11 630-733-4XXX 4000–4999Assigned ONVOY, LLC 224C BIG ROCK IL
2010-08-11 630-733-5XXX 5000–5999Assigned ONVOY, LLC 224C BIG ROCK IL
2010-08-11 630-733-6XXX 6000–6999Assigned ONVOY, LLC 224C BIG ROCK IL
2010-08-11 630-733-7XXX 7000–7999Assigned ONVOY, LLC 224C BIG ROCK 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.