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IP address 51.15.176.55

51.15.176.55 is flagged by our threat intelligence: known malicious with a threat score of 85 out of 100, last listed 2026-10-21, announced by AS12876 in France. Free lookup: which feeds carry it, what it is listed for, and its network block.

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

Threat intelligence verdict

Known malicious

Last listed 2026-10-21
85 / 100

51.15.176.55 is carried by public threat-intelligence feeds that we aggregate and distribute to the networks we protect. Known malicious. Carried by a public blocklist.

Threat score
85 out of 100
Confidence
55%
Severity
alert
Feeds carrying it
1
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

51.15.176.55

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 AS12876 · Online SAS
Network registered in 🇫🇷 France
Decimal
856666167
Hexadecimal
0x330FB037
Binary
00110011.00001111.10110000.00110111
Reverse DNS name
55.176.15.51.in-addr.arpa
As IPv6
::ffff:51.15.176.55

The networks around it

The /24 around it 51.15.176.0/24 51.15.176.0 to 51.15.176.255 256 addresses
The /16 51.15.0.0/16 51.15.0.0 to 51.15.255.255 65,536 addresses
The /8 51.0.0.0/8 51.0.0.0 to 51.255.255.255 16,777,216 addresses

Checking 51.15.176.55 against our threat intelligence and the public registries…

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