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
2005-12-29 847-497-1XXX 1000–1999Assigned ACCESS ONE, INC. - IL 5447 PISTAKHLDS IL
2005-12-29 847-499-7XXX 7000–7999Assigned ACCESS ONE, INC. - IL 5447 WHEELING IL
2005-12-29 847-512-9XXX 9000–9999Assigned ACCESS ONE, INC. - IL 5447 WILMETTE IL
2005-12-29 847-579-6XXX 6000–6999Assigned ACCESS ONE, INC. - IL 5447 HIGHLANDPK IL
2005-12-29 847-745-6XXX 6000–6999Assigned ACCESS ONE, INC. - IL 5447 SKOKIE IL
2005-12-29 847-886-5XXX 5000–5999Assigned ACCESS ONE, INC. - IL 5447 ROUND LAKE IL
2005-12-29 847-932-0XXX 0000–0999Assigned ACCESS ONE, INC. - IL 5447 LIBERTYVL IL
2005-12-27 847-596-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WAUKEGAN IL
2005-12-14 847-499-3XXX 3000–3999Assigned ONVOY, LLC 224C WHEELING IL
2005-12-14 847-725-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 ELK GROVE IL
2005-12-13 847-242-7XXX 7000–7999Assigned ACCESS ONE, INC. - IL 5447 GLENCOE IL
2005-12-13 847-282-9XXX 9000–9999Assigned ACCESS ONE, INC. - IL 5447 DEERFIELD IL
2005-12-13 847-448-4XXX 4000–4999Assigned ACCESS ONE, INC. - IL 5447 EVANSTON IL
2005-12-13 847-717-8XXX 8000–8999Assigned ACCESS ONE, INC. - IL 5447 ELGIN IL
2005-12-13 847-893-2XXX 2000–2999Assigned ACCESS ONE, INC. - IL 5447 BARTLETT IL
2005-12-09 847-454-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2005-12-09 847-454-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 ARLIGTNHTS IL
2005-12-08 847-238-7XXX 7000–7999Assigned ACCESS ONE, INC. - IL 5447 BENSENVL IL
2005-12-08 847-385-2XXX 2000–2999Assigned ACCESS ONE, INC. - IL 5447 ARLIGTNHTS IL
2005-12-08 847-493-8XXX 8000–8999Assigned ACCESS ONE, INC. - IL 5447 DESPLAINES IL
2005-12-08 847-594-3XXX 3000–3999Assigned ACCESS ONE, INC. - IL 5447 ALGONQUIN IL
2005-12-08 847-783-1XXX 1000–1999Assigned ACCESS ONE, INC. - IL 5447 DUNDEE IL
2005-11-23 847-242-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GLENCOE IL
2005-11-23 847-327-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 LIBERTYVL IL
2005-11-23 847-386-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WINNETKA IL
2005-11-23 847-386-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WINNETKA IL
2005-11-18 847-905-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 EVANSTON IL
2005-11-15 847-626-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SKOKIE IL
2005-11-15 847-859-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 EVANSTON IL
2005-11-03 847-728-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WILMETTE IL
2005-11-02 847-386-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WINNETKA IL
2005-10-21 847-649-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J DUNDEE IL
2005-10-12 847-235-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LAKEFOREST IL
2005-10-12 847-235-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LAKEFOREST IL
2005-10-12 847-235-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LAKEFOREST IL
2005-10-12 847-663-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SKOKIE IL
2005-10-12 847-810-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LAKEFOREST IL
2005-10-10 847-961-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 HUNTLEY IL
2005-10-10 847-961-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 HUNTLEY IL
2005-10-07 847-405-3XXX 3000–3999Assigned FIRST COMMUNICATIONS, LLC 460K DEERFIELD IL
2005-10-05 847-531-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ELGIN IL
2005-10-05 847-531-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ELGIN IL
2005-10-05 847-531-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 ELGIN IL
2005-10-05 847-892-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GLENCOE IL
2005-10-05 847-892-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GLENCOE IL
2005-10-03 847-231-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 GRAYSLAKE IL
2005-09-30 847-213-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SKOKIE IL
2005-09-30 847-423-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SKOKIE IL
2005-09-30 847-850-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WHEELING IL
2005-09-30 847-941-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 WHEELING 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.