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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2004-04-30 847-270-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ROUND LAKE IL
2004-04-30 847-393-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J MUNDELEIN IL
2004-04-30 847-416-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 WAUCONDA IL
2004-04-30 847-443-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 FOX LAKE IL
2004-04-30 847-462-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 CARY IL
2004-04-30 847-469-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WAUCONDA IL
2004-04-30 847-497-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 PISTAKHLDS IL
2004-04-30 847-603-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ANTIOCH IL
2004-04-30 847-665-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 GRAYSLAKE IL
2004-04-30 847-847-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LAKEZURICH IL
2004-04-30 847-915-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ALGONQUIN IL
2004-04-30 847-986-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J GRAYSLAKE IL
2004-04-27 847-410-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SKOKIE IL
2004-04-14 847-378-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ELK GROVE IL
2004-04-14 847-709-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ELK GROVE IL
2004-04-14 847-890-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ARLIGTNHTS IL
2004-04-14 847-890-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ARLIGTNHTS IL
2004-04-01 847-580-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K DEERFIELD IL
2004-03-25 847-406-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2004-03-17 847-636-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-03-17 847-636-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-03-17 847-636-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-03-12 847-403-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WHEELING IL
2004-03-09 847-213-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K SKOKIE IL
2004-03-09 847-586-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K DUNDEE IL
2004-03-09 847-586-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K DUNDEE IL
2004-03-02 847-307-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LAKEZURICH IL
2004-02-27 847-890-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-02-25 847-850-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WHEELING IL
2004-02-16 847-892-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GLENCOE IL
2004-02-16 847-961-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HUNTLEY IL
2004-02-13 847-929-5XXX 5000–5999Assigned FIRST COMMUNICATIONS, LLC 460K SKOKIE IL
2004-02-13 847-929-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K SKOKIE IL
2004-02-12 847-770-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-02-12 847-770-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-02-12 847-770-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NORTHBROOK IL
2004-02-04 847-941-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WHEELING IL
2004-01-29 847-385-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-01-29 847-754-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2004-01-21 847-613-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HALF DAY IL
2004-01-16 847-264-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ELK GROVE IL
2004-01-16 847-434-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ELK GROVE IL
2004-01-16 847-434-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ELK GROVE IL
2004-01-16 847-621-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 ELK GROVE IL
2004-01-16 847-631-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ELK GROVE IL
2004-01-12 847-636-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J DESPLAINES IL
2004-01-08 847-227-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-01-08 847-460-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IL 6333 DESPLAINES IL
2004-01-02 847-539-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DESPLAINES IL
2004-01-02 847-789-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 DESPLAINES 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.