Contact us
Free tools · IP address lookup

IP address 51.89.129.173

51.89.129.173 is flagged by our threat intelligence: high risk with a threat score of 83 out of 100, last listed 2026-10-21, announced by AS16276 in France. Free lookup: which feeds carry it, what it is listed for, and its network block.

Free tier: 5 live checks per day, per IP. Need volume or the API? See API access. See the addresses we currently flag.

Any IPv4 or IPv6 address. Private and reserved ranges are explained, but never sent to outside sources.

Threat intelligence verdict

High risk

Last listed 2026-10-21
83 / 100

51.89.129.173 is carried by public threat-intelligence feeds that we aggregate and distribute to the networks we protect. High risk. Carried by 4 public blocklists.

Threat score
83 out of 100
Confidence
100%
Severity
alert
Feeds carrying it
4
Last listed
2026-10-21

A listing describes what an address has been seen doing, not who owns it today. Addresses change hands, and a shared host can be listed for one customer's traffic. If this is your address and the listing is wrong, the feeds that carry it run their own delisting process.

Address profile

51.89.129.173

IPv4 · Public address
Public

Ordinary routable internet space, allocated by a regional internet registry to a network operator. The reputation of an address like this is worth checking: it can belong to a hosting provider, a company, a home connection or a mobile network, and its history travels with it.

Announced by AS16276 · OVH
Network registered in 🇫🇷 France
Decimal
861503917
Hexadecimal
0x335981AD
Binary
00110011.01011001.10000001.10101101
Reverse DNS name
173.129.89.51.in-addr.arpa
As IPv6
::ffff:51.89.129.173

The networks around it

The /24 around it 51.89.129.0/24 51.89.129.0 to 51.89.129.255 256 addresses
The /16 51.89.0.0/16 51.89.0.0 to 51.89.255.255 65,536 addresses
The /8 51.0.0.0/8 51.0.0.0 to 51.255.255.255 16,777,216 addresses

Checking 51.89.129.173 against our threat intelligence and the public registries…

Want the full picture and an API?

Our Threat Intelligence service returns real-time verdicts, fleet sightings and JSON for automation.