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
2004-08-20 630-201-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-08-20 630-201-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-08-13 630-259-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K ROSELLE IL
2004-08-09 630-313-5XXX 5000–5999Assigned ONVOY, LLC 224C GENEVA IL
2004-08-09 630-333-4XXX 4000–4999Assigned ONVOY, LLC 224C ELMHURST IL
2004-08-09 630-348-2XXX 2000–2999Assigned ONVOY, LLC 224C GLEN ELLYN IL
2004-08-09 630-384-1XXX 1000–1999Assigned ONVOY, LLC 224C WHEATON IL
2004-08-09 630-389-1XXX 1000–1999Assigned ONVOY, LLC 224C BATAVIA IL
2004-08-09 630-396-3XXX 3000–3999Assigned ONVOY, LLC 224C LOMBARD IL
2004-08-09 630-485-4XXX 4000–4999Assigned ONVOY, LLC 224C ST CHARLES IL
2004-08-09 630-596-5XXX 5000–5999Assigned ONVOY, LLC 224C NAPERVILLE IL
2004-08-09 630-657-1XXX 1000–1999Assigned ONVOY, LLC 224C WARRENVL IL
2004-08-09 630-701-1XXX 1000–1999Assigned ONVOY, LLC 224C AURORA IL
2004-08-09 630-957-4XXX 4000–4999Assigned ONVOY, LLC 224C W CHICAGO IL
2004-08-05 630-580-4XXX 4000–4999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 WHEATON IL
2004-08-05 630-639-4XXX 4000–4999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 W CHICAGO IL
2004-08-05 630-715-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST CHARLES IL
2004-08-04 630-547-4XXX 4000–4999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 GLEN ELLYN IL
2004-08-04 630-701-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J AURORA IL
2004-08-03 630-991-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DOWNERSGRV IL
2004-08-03 630-991-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DOWNERSGRV IL
2004-08-03 630-991-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DOWNERSGRV IL
2004-08-03 630-991-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DOWNERSGRV IL
2004-08-03 630-991-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DOWNERSGRV IL
2004-07-30 630-415-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2004-07-30 630-532-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ELMHURST IL
2004-07-30 630-701-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-07-26 630-324-4XXX 4000–4999Assigned ONVOY, LLC 224C DOWNERSGRV IL
2004-07-26 630-468-1XXX 1000–1999Assigned ONVOY, LLC 224C HINSDALE IL
2004-07-26 630-754-8XXX 8000–8999Assigned ONVOY, LLC 224C LEMONT IL
2004-07-20 630-338-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ST CHARLES IL
2004-07-20 630-701-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 AURORA IL
2004-07-13 630-696-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-07-13 630-696-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-07-13 630-696-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-07-13 630-696-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NAPERVILLE IL
2004-07-09 630-456-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WHEATON IL
2004-07-09 630-550-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BARTLETT IL
2004-07-09 630-639-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 W CHICAGO IL
2004-07-08 630-883-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J ELGIN IL
2004-07-06 630-310-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2004-07-06 630-310-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DOWNERSGRV IL
2004-07-01 630-621-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-07-01 630-621-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-07-01 630-621-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-07-01 630-639-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-07-01 630-639-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-07-01 630-639-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-07-01 630-639-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 W CHICAGO IL
2004-06-23 630-723-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 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.