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Autonomous System

AS16751

Open Text Corporation

Announced IPs
12,544
CIDR prefixes
18
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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
143.172.0.0/20 4.1K
1.4%
Open Text Corporation US
149.235.224.0/21 2.0K
89.8%
Open Text Corporation GB
129.84.0.0/22 1.0K
8.3%
Open Text Corporation US
204.90.140.0/22 1.0K
0.9%
Open Text Corporation US
129.84.0.0/23 512
0.0%
Open Text Corporation CA Ontario Cambridge
129.84.8.0/23 512
7.4%
Open Text Corporation US
129.84.88.0/23 512
1.0%
Open Text Corporation US
149.235.230.0/23 512
0.0%
Open Text Corporation US
204.90.144.0/23 512
0.0%
Open Text Corporation US
129.84.3.0/24 256
0.0%
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
6.6%
Open Text Corporation US
129.84.16.0/24 256
2.7%
Open Text Corporation US
142.75.253.0/24 256
0.0%
Open Text Corporation CA
149.235.224.0/24 256
0.0%
Open Text Corporation US
149.235.225.0/24 256
0.0%
Open Text Corporation GB
149.235.226.0/24 256
0.0%
Open Text Corporation US
149.235.227.0/24 256
0.0%
Open Text Corporation GB
149.235.228.0/24 256
0.0%
Open Text Corporation GB
149.235.229.0/24 256
0.0%
Open Text Corporation US
149.235.241.0/24 256
87.9%
Open Text Corporation GB
149.235.254.0/24 256
88.7%
Open Text Corporation GB
199.71.120.0/24 256
19.9%
Open Text Corporation CA Ontario Kitchener
204.138.115.0/24 256
63.7%
Open Text Corporation CA
205.211.178.0/24 256
55.1%
Open Text Corporation CA
129.84.2.128/25 128
0.0%
Open Text Corporation US
129.84.14.128/25 128
0.0%
Open Text Corporation CA
129.84.16.0/25 128
0.0%
Open Text Corporation US
149.235.254.128/25 128
0.0%
Open Text Corporation GB
129.84.2.0/26 64
0.0%
Open Text Corporation US
129.84.14.0/26 64
0.0%
Open Text Corporation US
129.84.16.192/26 64
0.0%
Open Text Corporation CA
149.235.254.64/26 64
0.0%
Open Text Corporation GB
129.84.14.96/27 32
0.0%
Open Text Corporation CA
129.84.16.160/27 32
0.0%
Open Text Corporation CA
149.235.254.0/27 32
0.0%
Open Text Corporation DE
149.235.254.32/27 32
0.0%
Open Text Corporation GB
129.84.2.80/28 16
0.0%
Open Text Corporation US
129.84.14.80/28 16
0.0%
Open Text Corporation US
129.84.16.144/28 16
0.0%
Open Text Corporation CA
129.84.2.64/29 8
0.0%
Open Text Corporation US
129.84.2.96/29 8
0.0%
Open Text Corporation US
129.84.14.72/29 8
0.0%
Open Text Corporation US
129.84.16.128/29 8
0.0%
Open Text Corporation CA
129.84.2.72/30 4
0.0%
Open Text Corporation US
129.84.2.76/30 4
0.0%
Open Text Corporation CA
129.84.2.108/30 4
0.0%
Open Text Corporation US
129.84.2.116/30 4
0.0%
Open Text Corporation US
129.84.2.120/30 4
0.0%
Open Text Corporation US
129.84.14.68/30 4
0.0%
Open Text Corporation US
129.84.16.136/30 4
0.0%
Open Text Corporation CA
129.84.16.140/30 4
0.0%
Open Text Corporation US
129.84.2.104/31 2
0.0%
Open Text Corporation US
129.84.2.112/31 2
0.0%
Open Text Corporation US
129.84.2.124/31 2
0.0%
Open Text Corporation CA
129.84.2.126/31 2
0.0%
Open Text Corporation US
129.84.14.64/31 2
0.0%
Open Text Corporation US
129.84.2.106 1
0.0%
Open Text Corporation US
129.84.2.107 1
0.0%
Open Text Corporation CA
129.84.2.114 1
0.0%
Open Text Corporation CA
129.84.2.115 1
0.0%
Open Text Corporation US
129.84.14.66 1
0.0%
Open Text Corporation US
129.84.14.67 1
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
149.235.241.0/24 8,750 2026-07-25 03:40:48
149.235.224.0/21 8,710 2026-07-25 03:40:48
149.235.254.0/24 8,670 2026-07-25 03:40:48
204.90.143.0/24 8,610 2026-07-25 03:46:25
204.90.142.0/23 6,943 2026-07-25 03:46:25
204.90.141.0/24 6,941 2026-07-25 03:46:25
204.90.144.0/23 6,937 2026-07-25 03:46:25
204.90.140.0/22 6,929 2026-07-25 03:46:25
149.235.230.0/24 5,967 2026-07-13 06:46:22
129.84.0.0/24 4,642 2026-07-25 03:39:38
204.138.115.0/24 4,616 2026-07-25 03:39:38
129.84.14.0/24 4,606 2026-07-25 03:39:38
129.84.6.0/24 4,602 2026-07-25 03:39:38
129.84.2.0/23 4,601 2026-07-25 03:39:38
129.84.89.0/24 4,600 2026-07-25 03:39:38
129.84.13.0/24 4,600 2026-07-25 03:39:38
143.172.8.0/21 4,588 2026-07-25 03:39:38
129.84.16.0/24 4,581 2026-07-25 03:39:38
129.84.88.0/24 4,578 2026-07-25 03:39:38
143.172.0.0/21 4,578 2026-07-25 03:39:38
205.211.178.0/24 4,576 2026-07-25 03:39:38
129.84.8.0/23 4,571 2026-07-25 03:39:38
129.84.1.0/24 4,570 2026-07-25 03:39:38
129.84.10.0/24 4,560 2026-07-25 03:39:38
142.75.253.0/24 4,417 2026-07-25 03:39:38
199.71.120.0/24 4,374 2026-07-25 03:45:38

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 12.5K IPv4 addresses distributed across 18 routed CIDR prefixes. The network is registered in United States.

Who operates AS16751?

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

What country is AS16751 registered in?

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

Last updated: 2026-07-25 04:25:31 UTC
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