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
2013-07-05 630-286-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 HINSDALE IL
2013-07-05 630-480-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WHEATON IL
2013-06-25 630-283-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J ROSELLE IL
2013-06-21 630-519-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LOMBARD IL
2013-06-17 630-538-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2013-06-13 630-940-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 ST CHARLES IL
2013-06-05 630-447-3XXX 3000–3999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WARRENVL IL
2013-06-05 630-480-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WHEATON IL
2013-06-04 630-474-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GLEN ELLYN IL
2013-06-04 630-477-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BENSENVL IL
2013-06-04 630-919-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J ITASCA IL
2013-05-31 630-519-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J LOMBARD IL
2013-05-31 630-861-5XXX 5000–5999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HINSDALE IL
2013-05-29 630-463-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GENEVA IL
2013-05-29 630-538-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2013-05-29 630-538-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 SUGARGROVE IL
2013-05-23 630-521-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 BENSENVL IL
2013-05-23 630-521-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 BENSENVL IL
2013-05-22 630-402-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 GENEVA IL
2013-05-22 630-489-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LOMBARD IL
2013-05-22 630-489-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LOMBARD IL
2013-05-22 630-597-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WHEATON IL
2013-05-22 630-597-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WHEATON IL
2013-05-22 630-597-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WHEATON IL
2013-05-22 630-597-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WHEATON IL
2013-05-17 630-489-1XXX 1000–1999Assigned ONVOY, LLC 224C LOMBARD IL
2013-05-17 630-489-4XXX 4000–4999Assigned ONVOY, LLC 224C LOMBARD IL
2013-05-17 630-489-5XXX 5000–5999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E LOMBARD IL
2013-05-02 630-581-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HINSDALE IL
2013-05-02 630-581-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HINSDALE IL
2013-04-26 630-791-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WARRENVL IL
2013-04-25 630-723-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J AURORA IL
2013-04-16 630-332-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 PLANO IL
2013-04-09 630-463-1XXX 1000–1999Assigned IP HORIZON LLC 515J GENEVA IL
2013-04-04 630-394-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E KANEVILLE IL
2013-04-04 630-394-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E KANEVILLE IL
2013-04-03 630-332-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PLANO IL
2013-04-03 630-332-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E PLANO IL
2013-04-03 630-365-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ELBURN IL
2013-04-03 630-387-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ELBURN IL
2013-04-03 630-509-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BENSENVL IL
2013-04-03 630-509-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E BENSENVL IL
2013-04-03 630-523-0XXX 0000–0999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ROSELLE IL
2013-04-03 630-523-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E ROSELLE IL
2013-04-03 630-534-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GLEN ELLYN IL
2013-04-03 630-534-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E GLEN ELLYN IL
2013-04-03 630-538-7XXX 7000–7999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E SUGARGROVE IL
2013-04-03 630-538-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E SUGARGROVE IL
2013-04-03 630-576-1XXX 1000–1999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E LOMBARD IL
2013-04-03 630-576-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E LOMBARD 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.