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
2004-11-03 847-474-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K CARY IL
2004-11-03 847-613-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K HALF DAY IL
2004-11-03 847-666-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K ARLIGTNHTS IL
2004-11-02 847-859-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J EVANSTON IL
2004-10-21 847-610-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ROSELLE IL
2004-10-20 847-273-4XXX 4000–4999Assigned FIRST COMMUNICATIONS, LLC 460K ROSELLE IL
2004-10-20 847-461-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GLENCOE IL
2004-10-19 847-321-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-10-18 847-666-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-10-18 847-666-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-10-15 847-779-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K SKOKIE IL
2004-10-14 847-871-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 ELK GROVE IL
2004-10-08 847-592-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J ROSELLE IL
2004-10-08 847-594-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2004-10-08 847-915-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2004-10-07 847-693-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2004-10-06 847-464-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 PLATO CTR IL
2004-10-06 847-890-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-09-28 847-406-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2004-09-27 847-890-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-09-23 847-348-4XXX 4000–4999Assigned RCN TELECOM SERVICES OF ILLINIOS, INC. - IL 8702 PALATINE IL
2004-09-23 847-371-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K LIBERTYVL IL
2004-09-23 847-586-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 DUNDEE IL
2004-09-23 847-716-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WINNETKA IL
2004-09-22 847-613-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 HALF DAY IL
2004-09-22 847-613-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 HALF DAY IL
2004-09-21 847-273-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K ROSELLE IL
2004-09-20 847-325-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K WHEELING IL
2004-09-20 847-457-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K LAKEFOREST IL
2004-09-20 847-613-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K HALF DAY IL
2004-09-16 847-430-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J PARK RIDGE IL
2004-09-16 847-716-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J WINNETKA IL
2004-09-16 847-756-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 BARRINGTON IL
2004-09-16 847-890-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-09-14 847-787-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BENSENVL IL
2004-09-13 847-871-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ELK GROVE IL
2004-09-10 847-775-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WAUKEGAN IL
2004-09-03 847-713-8XXX 8000–8999Assigned FIRST COMMUNICATIONS, LLC 460K BARRINGTON IL
2004-09-03 847-719-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LAKEZURICH IL
2004-09-03 847-847-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K LAKEZURICH IL
2004-08-26 847-241-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PALATINE IL
2004-08-26 847-241-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J PALATINE IL
2004-08-26 847-241-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PALATINE IL
2004-08-26 847-241-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PALATINE IL
2004-08-26 847-241-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PALATINE IL
2004-08-26 847-241-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PALATINE IL
2004-08-26 847-241-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PALATINE IL
2004-08-24 847-261-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K FRANKLINPK IL
2004-08-24 847-379-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K ZION IL
2004-08-24 847-386-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K WINNETKA 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.