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 847
ONVOY, LLC 2
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
2011-07-22 847-447-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E FRANKLINPK IL
2011-07-22 847-752-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GRAYSLAKE IL
2011-07-21 847-713-1XXX 1000–1999Assigned ONVOY, LLC 224C BARRINGTON IL
2011-07-20 847-410-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SKOKIE IL
2011-07-20 847-423-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SKOKIE IL
2011-07-20 847-748-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HIGHLANDPK IL
2011-07-20 847-748-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HIGHLANDPK IL
2011-07-18 847-250-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ITASCA IL
2011-07-13 847-906-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WILMETTE IL
2011-07-12 847-440-2XXX 2000–2999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E EVANSTON IL
2011-07-11 847-868-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EVANSTON IL
2011-07-07 847-798-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARTLETT IL
2011-07-06 847-979-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K ELK GROVE IL
2011-06-24 847-796-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J LAKEZURICH IL
2011-06-13 847-454-7XXX 7000–7999Assigned ONVOY, LLC 224C ARLIGTNHTS IL
2011-06-10 847-252-0XXX 0000–0999Assigned ACCESS ONE, INC. - IL 5447 ROSELLE IL
2011-06-10 847-979-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J ELK GROVE IL
2011-06-09 847-423-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SKOKIE IL
2011-06-08 847-893-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BARTLETT IL
2011-06-07 847-264-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ELK GROVE IL
2011-06-07 847-281-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LIBERTYVL IL
2011-06-07 847-503-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GLENVIEW IL
2011-06-07 847-796-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LAKEZURICH IL
2011-06-07 847-796-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LAKEZURICH IL
2011-06-07 847-865-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WAUCONDA IL
2011-06-02 847-521-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-06-02 847-521-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2011-05-23 847-728-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WILMETTE IL
2011-05-19 847-268-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PARK RIDGE IL
2011-05-19 847-495-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E WHEELING IL
2011-05-19 847-790-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E NORTHBROOK IL
2011-05-19 847-807-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROSELLE IL
2011-05-19 847-807-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROSELLE IL
2011-05-19 847-807-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ROSELLE IL
2011-05-12 847-440-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 EVANSTON IL
2011-05-11 847-250-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E ITASCA IL
2011-05-11 847-861-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HIGHLANDPK IL
2011-05-11 847-986-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GRAYSLAKE IL
2011-05-06 847-260-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E FRANKLINPK IL
2011-05-06 847-440-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E EVANSTON IL
2011-05-06 847-440-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E EVANSTON IL
2011-05-06 847-496-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PALATINE IL
2011-05-06 847-496-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PALATINE IL
2011-05-06 847-780-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HIGHLANDPK IL
2011-05-04 847-380-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ROSELLE IL
2011-04-29 847-564-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-04-29 847-664-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-04-29 847-664-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-04-29 847-790-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2011-04-28 847-418-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK 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.