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
2004-01-02 847-954-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DESPLAINES IL
2003-12-25 847-416-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WAUCONDA IL
2003-12-25 847-453-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HAMPSHIRE IL
2003-12-25 847-629-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 FOX LAKE IL
2003-12-23 847-434-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J ELK GROVE IL
2003-12-23 847-930-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ELGIN IL
2003-12-23 847-930-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ELGIN IL
2003-12-23 847-930-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELGIN IL
2003-12-22 847-592-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J ROSELLE IL
2003-12-19 847-276-9XXX 9000–9999Assigned METROPCS, INC. 5562 HALF DAY IL
2003-12-19 847-307-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LAKEZURICH IL
2003-12-19 847-415-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HALF DAY IL
2003-12-19 847-876-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 HALF DAY IL
2003-12-05 847-748-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 HIGHLANDPK IL
2003-12-01 847-350-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J BENSENVL IL
2003-11-26 847-592-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ROSELLE IL
2003-11-18 847-770-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J NORTHBROOK IL
2003-11-13 847-754-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2003-11-04 847-406-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2003-11-04 847-406-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2003-10-31 847-268-9XXX 9000–9999Assigned PAETEC ITEL, LLC 829J PARK RIDGE IL
2003-10-31 847-462-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J CARY IL
2003-10-31 847-915-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2003-10-31 847-915-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2003-10-31 847-915-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALGONQUIN IL
2003-10-31 847-961-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUNTLEY IL
2003-10-29 847-213-7XXX 7000–7999Assigned ILLINOIS BELL TEL CO 9329 SKOKIE IL
2003-10-29 847-213-8XXX 8000–8999Assigned ILLINOIS BELL TEL CO 9329 SKOKIE IL
2003-10-10 847-789-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 DESPLAINES IL
2003-10-07 847-231-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GRAYSLAKE IL
2003-10-06 847-665-2XXX 2000–2999Assigned ILLINOIS BELL TEL CO 9329 GRAYSLAKE IL
2003-09-11 847-376-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DESPLAINES IL
2003-09-11 847-376-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DESPLAINES IL
2003-09-11 847-493-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DESPLAINES IL
2003-09-11 847-544-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 DESPLAINES IL
2003-09-11 847-627-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 DESPLAINES IL
2003-09-11 847-627-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 DESPLAINES IL
2003-09-08 847-627-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J DESPLAINES IL
2003-08-06 847-201-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ROUND LAKE IL
2003-08-06 847-430-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J PARK RIDGE IL
2003-08-04 847-754-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ARLIGTNHTS IL
2003-08-04 847-852-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 BARRINGTON IL
2003-08-04 847-930-6XXX 6000–6999Assigned FIRST COMMUNICATIONS, LLC 460K ELGIN IL
2003-07-31 847-415-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J HALF DAY IL
2003-07-30 847-201-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ROUND LAKE IL
2003-07-30 847-268-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 PARK RIDGE IL
2003-07-30 847-379-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ZION IL
2003-07-30 847-393-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 MUNDELEIN IL
2003-07-30 847-457-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LAKEFOREST IL
2003-07-30 847-462-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 CARY 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.