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 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
2005-02-07 847-348-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 PALATINE IL
2005-02-07 847-829-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CARY IL
2005-02-07 847-847-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LAKEZURICH IL
2005-02-02 847-939-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 PARK RIDGE IL
2005-02-02 847-939-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 PARK RIDGE IL
2005-01-30 847-348-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 PALATINE IL
2005-01-30 847-598-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ROSELLE IL
2005-01-26 847-268-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 PARK RIDGE IL
2005-01-26 847-621-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K ELK GROVE IL
2005-01-26 847-775-9XXX 9000–9999Assigned METROPCS, INC. 5562 WAUKEGAN IL
2005-01-26 847-787-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K BENSENVL IL
2005-01-26 847-929-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SKOKIE IL
2005-01-26 847-999-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WINNETKA IL
2005-01-25 847-448-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 EVANSTON IL
2005-01-25 847-457-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LAKEFOREST IL
2005-01-25 847-737-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 FRANKLINPK IL
2005-01-25 847-984-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LIBERTYVL IL
2005-01-19 847-235-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K LAKEFOREST IL
2005-01-17 847-613-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HALF DAY IL
2005-01-14 847-620-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BARRINGTON IL
2005-01-14 847-693-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2005-01-14 847-852-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BARRINGTON IL
2005-01-10 847-932-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K LIBERTYVL IL
2004-12-21 847-915-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ALGONQUIN IL
2004-12-17 847-693-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2004-12-15 847-656-9XXX 9000–9999Assigned FIRST COMMUNICATIONS, LLC 460K NORTHBROOK IL
2004-12-14 847-348-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K PALATINE IL
2004-12-14 847-386-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K WINNETKA IL
2004-12-14 847-512-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K WILMETTE IL
2004-12-14 847-861-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K HIGHLANDPK IL
2004-12-02 847-666-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ARLIGTNHTS IL
2004-12-02 847-693-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WAUKEGAN IL
2004-12-02 847-849-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 NORTHBROOK IL
2004-12-02 847-960-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ALGONQUIN IL
2004-11-16 847-485-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 PALATINE IL
2004-11-11 847-242-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K GLENCOE IL
2004-11-11 847-307-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K LAKEZURICH IL
2004-11-11 847-443-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K FOX LAKE IL
2004-11-11 847-497-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K PISTAKHLDS IL
2004-11-11 847-603-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K ANTIOCH IL
2004-11-11 847-693-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K WAUKEGAN IL
2004-11-11 847-693-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2004-11-11 847-993-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K PARK RIDGE IL
2004-11-10 847-693-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2004-11-10 847-849-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2004-11-10 847-849-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 NORTHBROOK IL
2004-11-09 847-852-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BARRINGTON IL
2004-11-03 847-261-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K FRANKLINPK IL
2004-11-03 847-377-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K WAUKEGAN IL
2004-11-03 847-388-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K MUNDELEIN 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.