COGNIZANT WORLDWIDE LIMITED
Cognizant Worldwide Limited
GLEIF verified
Complete entity footprint
2 linked clusters ·
8 netblocks ·
2,052 IPv4 addresses
This organisation's clusters combined by evidence —
shared GLEIF corporate family
— not name similarity, so genuinely different organisations that share a name are excluded.
LEI
549300GJ1JDHE2NVYV13
Registered name
COGNIZANT WORLDWIDE LIMITED
Jurisdiction
Ultimate parent
COGNIZANT TECHNOLOGY SOLUTIONS CORPORATION
5493006IEVQEFQO40L83
Cluster stats
| Netblocks | 7 · 2,045 IPv4 addresses |
| Cluster ID | 210044737 |
| Registry | BGP |
| Owner jurisdiction | GB |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 549300GJ1JDHE2NVYV13 |
| Shared handles | clustered on 8 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
11
0 netblocks since 2026-07-05
2026-07-05
peak 11
2026-07-19
IP Ranges (7)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 185.9.172.0/23 | Cognizant Worldwide Limited | BGP | ANNOUNCED | ● high |
| 185.9.174.0/23 | Cognizant Worldwide Limited | BGP | ANNOUNCED | ● high |
| 2a03:4cc0::/32 | Cognizant Worldwide Limited | BGP | ANNOUNCED | ● high |
| 185.9.172.0/22 | Cognizant Worldwide Limited | RIPE | ALLOCATED PA | ● low |
| 2a00:2381:193::/48 | COGNIZANT-WORLDWIDE | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a00:2381:2100::/48 | COGNIZANT-WORLDWIDE | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a03:4cc0::/32 | Cognizant Worldwide Limited | RIPE | ALLOCATED-BY-RIR | ● low |
Corporate group (2 confirmed entities)
+2 additional unconfirmed candidates not shown — full list (JSON)Network trust
what's this?
RPKI hygiene: D
how networks compare →
28.6%
of checked blocks have valid RPKI ROA coverage
(2 of 7)
Possible discrepancies (2)
These blocks are registered to Cognizant Worldwide Limited 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.
| 2a00:2381:193::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
| 2a00:2381:2100::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
NIC Handles
AS199569
BTNET-MNT
DUMY-RIPE
DUMY-RIPE
ORG-CTSU1-RIPE
RIPE-NCC-HM-MNT
cognizant-dc-eu-mnt
cognizant-dc-eu-mnt