NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

2 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 815
VERSATEL LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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
2012-06-12 815-681-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E OGLESBY IL
2012-06-07 815-705-1XXX 1000–1999Assigned FIRST COMMUNICATIONS, LLC 460K MORRIS IL
2012-06-07 815-705-2XXX 2000–2999Assigned FIRST COMMUNICATIONS, LLC 460K MORRIS IL
2012-06-07 815-705-7XXX 7000–7999Assigned FIRST COMMUNICATIONS, LLC 460K MORRIS IL
2012-06-06 815-320-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J NEW LENOX IL
2012-05-25 815-570-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SANDWICH IL
2012-05-24 815-507-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2012-05-23 815-331-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J MCHENRY IL
2012-05-23 815-716-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J STERLING IL
2012-05-17 815-553-6XXX 6000–6999Assigned CLEAR RATE COMMUNICATIONS, LLC 046L JOLIET IL
2012-05-09 815-782-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PLAINFIELD IL
2012-05-01 815-517-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 DE KALB IL
2012-05-01 815-580-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 CHERRY VLY IL
2012-05-01 815-618-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 FREEPORT IL
2012-04-24 815-269-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DANFORTH IL
2012-04-24 815-339-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E GRANVILLE IL
2012-04-24 815-682-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E STOCKLAND IL
2012-04-09 815-518-6XXX 6000–6999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COAL CITY IL
2012-04-09 815-518-9XXX 9000–9999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COAL CITY IL
2012-04-09 815-709-4XXX 4000–4999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COAL CITY IL
2012-04-09 815-709-8XXX 8000–8999Assigned PEERLESS NETWORK OF ILLINOIS, LLC - IL 063E COAL CITY IL
2012-04-05 815-267-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J PLAINFIELD IL
2012-04-05 815-513-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J MORRIS IL
2012-04-05 815-944-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MOMENCE IL
2012-04-02 815-733-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E PLAINFIELD IL
2012-04-02 815-888-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - IL 7136 ROCHELLE IL
2012-04-02 815-900-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MCHENRY IL
2012-03-20 815-357-4XXX 4000–4999Assigned ONVOY, LLC 224C SENECA IL
2012-03-19 815-428-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MARTINTON IL
2012-03-08 815-435-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BEAVERVL IL
2012-03-06 815-650-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 FREEPORT IL
2012-02-29 815-900-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J MCHENRY IL
2012-02-15 815-496-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 SHERIDAN IL
2012-02-13 815-581-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SPRING GRV IL
2012-02-07 815-448-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MAZON IL
2012-02-07 815-486-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DONOVAN IL
2012-02-07 815-792-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HARDING IL
2012-02-07 815-862-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E RICHMOND IL
2012-02-07 815-923-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E UNION IL
2012-02-03 815-534-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - IL 6115 FRANKFORT IL
2012-01-24 815-448-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J MAZON IL
2012-01-20 815-558-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ROCKFORD IL
2012-01-20 815-780-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E LA SALLE IL
2012-01-04 815-390-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E BRAIDWOOD IL
2011-12-27 815-287-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E VERONA IL
2011-12-27 815-374-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E DWIGHT IL
2011-12-27 815-648-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E HEBRON IL
2011-12-27 815-770-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IL 7196 HARVARD IL
2011-12-16 815-889-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E MILFORD IL
2011-12-13 815-357-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - IL 984E SENECA 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.