AS18563 — CGINET-01

AS18563 announces 15 IPv4 prefixes covering 17,408 addresses and 1 IPv6 prefixes.

About this network

CGINET-01 is the autonomous system for CGI Inc., a major global IT and business consulting firm.

What it's used for

• The address space carries internal corporate infrastructure, evidenced by netnames like CGI-GLOBAL-2, CGI-BLK-3, and CGI-GIS-ONT-2, as well as reverse DNS entries pointing to cognicase.net and cgitmsmdc.ca.
• With 17,408 IPv4 addresses announced across 19 prefixes and only 5 observed neighbours, the ratio indicates a large internal corporate estate rather than a transit or access network.

Notable

• Registrants are consistent with the announcer, primarily listing CGI Inc., with some blocks registered to CGI Group and CGI GIS Telecom MDC.
• The address inventory is finely subdivided into numerous /23 and /24 blocks, reflecting site-by-site segmentation typical of a large multinational corporation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 64.86.140.0/23
• 64.254.0.0/20
• 64.254.16.0/21
• 64.254.24.0/23
• 64.254.27.0/24
• 64.254.28.0/22
• 66.110.6.0/23
• 128.129.34.0/23
• 128.129.38.0/23
• 128.129.40.0/21
• 128.129.48.0/20
• 159.18.53.0/24
• 159.18.220.0/23
• 204.107.153.0/24
• 207.245.13.0/24
• 2620:10:8000::/44

Upstream networks

• AS6461 Zayo Bandwidth
• AS21949 Beanfield Technologies Inc.
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS577 Bell Canada

Downstream networks

• AS397681 CGI Inc.

Adjacent networks

• AS6461 Zayo Bandwidth
• AS21949 Beanfield Technologies Inc.
• AS6453 TATA COMMUNICATIONS (AMERICA) INC
• AS397681 CGI Inc.
• AS577 Bell Canada