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WorldIP.io
Autonomous System

AS16751

Open Text Corporation

Announced IPs
12,800
CIDR prefixes
19
ASN
AS16751

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

69/100
Moderate
How this score is built

Experimental · trust-vectors model v1.3.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
143.172.0.0/20 4.1K
1.7%
Open Text Corporation US — —
149.235.224.0/21 2.0K
99.1%
Open Text Corporation GB — —
129.84.0.0/22 1.0K
9.7%
Open Text Corporation US — —
204.90.140.0/22 1.0K
1.2%
Open Text Corporation US — —
129.84.0.0/23 512
1.2%
Open Text Corporation CA Ontario Cambridge
129.84.2.0/23 512
18.2%
Open Text Corporation US — —
129.84.8.0/23 512
7.6%
Open Text Corporation US — —
129.84.88.0/23 512
1.2%
Open Text Corporation US — —
149.235.230.0/23 512
99.2%
Open Text Corporation US — —
204.90.140.0/23 512
1.6%
Open Text Corporation US — —
204.90.144.0/23 512
0.0%
Open Text Corporation US — —
129.84.4.0/24 256
1.6%
Open Text Corporation US — —
129.84.6.0/24 256
0.0%
Open Text Corporation US — —
129.84.10.0/24 256
0.0%
Open Text Corporation US — —
129.84.13.0/24 256
2.3%
Open Text Corporation US — —
129.84.14.0/24 256
7.0%
Open Text Corporation US — —
129.84.16.0/24 256
3.1%
Open Text Corporation US — —
129.84.88.0/24 256
1.2%
Open Text Corporation CA — —
129.84.89.0/24 256
1.2%
Open Text Corporation US — —
142.75.253.0/24 256
0.0%
Open Text Corporation CA — —
149.235.224.0/24 256
99.2%
Open Text Corporation US — —
149.235.225.0/24 256
98.8%
Open Text Corporation GB — —
149.235.226.0/24 256
99.2%
Open Text Corporation US — —
149.235.227.0/24 256
98.8%
Open Text Corporation GB — —
149.235.228.0/24 256
99.2%
Open Text Corporation GB — —
149.235.229.0/24 256
99.2%
Open Text Corporation US — —
149.235.241.0/24 256
99.2%
Open Text Corporation GB — —
149.235.254.0/24 256
99.2%
Open Text Corporation GB — —
199.71.120.0/24 256
25.0%
Open Text Corporation CA Ontario Kitchener
204.90.142.0/24 256
0.0%
Open Text Corporation US — —
204.138.115.0/24 256
87.1%
Open Text Corporation CA — —
205.211.178.0/24 256
68.0%
Open Text Corporation CA — —
142.75.253.0/25 128
0.0%
Open Text Corporation US — —
142.75.253.128/25 128
0.0%
Open Text Corporation CA — —
204.90.143.128/25 128
1.6%
Open Text Corporation CA — —
204.90.143.64/26 64
1.6%
Open Text Corporation CA — —
204.90.143.0/27 32
3.1%
Open Text Corporation US — —
204.90.143.48/28 16
0.0%
Open Text Corporation CA — —
204.90.143.32/29 8
0.0%
Open Text Corporation US — —
204.90.143.40/29 8
0.0%
Open Text Corporation CA — —

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS16751 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
142.75.253.0/24 32,469 2026-11-13 15:23:20
129.84.8.0/23 32,456 2026-11-13 15:23:16
129.84.88.0/24 32,452 2026-11-13 15:23:16
129.84.16.0/24 32,446 2026-11-13 15:23:16
129.84.1.0/24 32,409 2026-11-13 15:23:16
129.84.10.0/24 32,404 2026-11-13 15:23:16
149.235.241.0/24 27,472 2026-11-13 15:23:23
149.235.224.0/21 27,432 2026-11-13 15:23:23
129.84.4.0/24 27,405 2026-11-13 15:23:16
149.235.254.0/24 27,255 2026-11-13 15:23:23
129.84.0.0/24 17,730 2026-11-13 15:23:16
204.138.115.0/24 17,700 2026-11-13 15:23:16
143.172.8.0/21 17,490 2026-11-13 15:23:16
129.84.89.0/24 17,488 2026-11-13 15:23:16
129.84.14.0/24 17,484 2026-11-13 15:23:16
129.84.13.0/24 17,467 2026-11-13 15:23:16
129.84.6.0/24 17,464 2026-11-13 15:23:16
129.84.2.0/23 17,463 2026-11-13 15:23:16
143.172.0.0/21 17,410 2026-11-13 15:23:16
205.211.178.0/24 17,218 2026-11-13 15:23:16
204.90.142.0/23 16,849 2026-11-13 15:23:16
204.90.141.0/24 16,797 2026-11-13 15:23:16
204.90.144.0/23 16,783 2026-11-13 15:23:16
204.90.140.0/22 16,687 2026-11-13 15:24:01
204.90.143.0/24 16,665 2026-11-13 15:23:16
199.71.120.0/24 15,353 2026-11-13 15:23:56
149.235.230.0/24 5,967 2026-07-13 06:46:22

Frequently Asked Questions

What is AS16751?

AS16751 is an Autonomous System Number assigned to Open Text Corporation. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS16751 announce?

AS16751 announces 12.8K IPv4 addresses distributed across 19 routed CIDR prefixes. The network is registered in Canada.

Who operates AS16751?

AS16751 is operated by Open Text Corporation. The organization is based in Canada. You can view all IP ranges and related ASNs on the organization page.

What country is AS16751 registered in?

AS16751 is registered in Canada. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-11-13 15:39:04 UTC
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