CGI INC.

CGI Inc.
Data as of 2026-08-16
GLEIF verified
Complete entity footprint
7 linked clusters · 338 netblocks · 490,872 IPv4 addresses · 20 IPv6 prefixes
This organisation's clusters combined by evidence — shared GLEIF corporate family — not name similarity, so genuinely different organisations that share a name are excluded.
View the full entity page →
LEI
549300WSRCZY73ZG3090
Registered name
CGI INC.
Jurisdiction
CA-QC
Ultimate parent
No parent on file in GLEIF
Cluster stats
Netblocks66 · 222,636 IPv4 addresses
IPv6 2 prefixes (largest 2600:b800::/28)
Registered in Canada (50) · United States (5) · United Kingdom (5) · Czechia (3) · France (3) · LT (1)
All fragments 833 blocks across 53 clusters
Cluster ID222391797
RegistryAFRINIC
Owner jurisdictionCA-QC
Customersfind customers using this network →
Evidence & provenance ?
Attribution GLEIF legal-entity match
Legal identityLEI 549300WSRCZY73ZG3090
Shared handles clustered on 26 shared RIR contact/maintainer handles
Registry names 6 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works · report an issue

Footprint over time

8 weekly snapshots · JSON
72 +30 netblocks since 2026-07-05
2026-07-05 peak 72 2026-08-16

IP Ranges (66)

showing 50 of 66 — see all — ⬇ export CSV
CIDR Org name Registry Status Confidence
64.86.140.0/23 CGI Inc. BGP ANNOUNCED ● high
64.254.0.0/19 CGI Inc. ARIN DIRECT ALLOCATION ● high
64.254.6.0/23 CGI Inc. BGP ANNOUNCED ● high
64.254.10.0/24 CGI Inc. BGP ANNOUNCED ● high
64.254.11.0/24 CGI Inc. BGP ANNOUNCED ● high
64.254.21.0/24 CGI Inc. BGP ANNOUNCED ● high
64.254.24.0/24 CGI Inc. BGP ANNOUNCED ● high
64.254.28.0/23 CGI Inc. BGP ANNOUNCED ● high
64.254.30.0/23 CGI Inc. BGP ANNOUNCED ● high
66.110.6.0/23 CGI Inc. BGP ANNOUNCED ● high
128.129.0.0/16 CGI Inc. ARIN DIRECT ALLOCATION ● high
128.129.34.0/23 CGI Inc. BGP ANNOUNCED ● high
128.129.36.0/23 CGI Inc. BGP ANNOUNCED ● high
128.129.38.0/23 CGI Inc. BGP ANNOUNCED ● high
128.129.40.0/21 CGI Inc. BGP ANNOUNCED ● high
128.129.48.0/20 CGI Inc. BGP ANNOUNCED ● high
142.101.0.0/16 CGI Inc. ARIN DIRECT ALLOCATION ● high
159.18.53.0/24 CGI Inc. BGP ANNOUNCED ● high
159.18.220.0/23 CGI Inc. BGP ANNOUNCED ● high
162.70.0.0/16 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.94.40.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.135.40.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.135.41.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.135.42.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.135.43.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.88.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.89.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.90.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.91.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.92.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.93.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.94.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.95.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.96.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.97.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.98.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
192.219.99.0/24 CGI Inc. BGP ANNOUNCED ● high
198.168.2.0/24 CGI Inc. BGP ANNOUNCED ● high
198.168.4.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
198.252.128.0/22 CGI Inc. ARIN DIRECT ALLOCATION ● high
199.84.55.0 – 199.84.60.255 CGI Inc. ARIN DIRECT ALLOCATION ● high
199.202.91.0/24 CGI Inc. BGP ANNOUNCED ● high
204.19.102.0/23 CGI Inc. ARIN DIRECT ALLOCATION ● high
204.83.165.0/24 CGI Inc. BGP ANNOUNCED ● high
204.107.153.0/24 CGI Inc. BGP ANNOUNCED ● high
204.209.113.0/24 CGI Inc. BGP ANNOUNCED ● high
204.239.175.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
205.151.164.0/24 CGI Inc. ARIN DIRECT ALLOCATION ● high
205.207.1.0 – 205.207.23.255 CGI Inc. ARIN DIRECT ALLOCATION ● high
207.245.13.0/24 CGI Inc. BGP ANNOUNCED ● high

IPv6 ranges (2)

CIDR
2600:b800::/28
2620:10:8000::/44

Domains hosted in this network

what's this?
cgi.com

Corporate group (7 confirmed entities)

+160 additional unconfirmed candidates not shown — full list (JSON)

Network trust

what's this?
RPKI hygiene: D how networks compare →
34.7% of checked blocks have valid RPKI ROA coverage (25 of 72)
Possible discrepancies (1)

These blocks are registered to CGI Inc. but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

213.235.145.0/24 /24 authorized for AS25512 — CD-Telematika a.s.

NIC Handles

AS11568 AS18563 AS397681 CDA158-ARIN CDA158-ARIN CDT-MNT CEGETEL-ENTREPRISES CGIGR-2 CGIINC CW-EUROPE-GSOC DMT1-AFRINIC DUMY-RIPE +14 more