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CIDR Range

77.237.204.0/24

Addresses
256
256
Sub-ranges
30+
within this block
PTR Density
100.0%
256 of 256 IPs have PTR

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.

76/100
Moderate
How this score is built

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

Ranges inside 77.237.204.0/24

CIDRIPsOrganizationASNCountry
77.237.204.128/25 128 TON Total optical Networks AG AS12387 CH
77.237.204.128/25 128 TON Total optical Networks AG AS12387 CH
77.237.204.128/25 128 TON Total optical Networks AG AS12387 CH
77.237.204.64/26 64 TON Total optical Networks AG AS12387 CH
77.237.204.64/26 64 TON Total optical Networks AG AS12387 CH
77.237.204.64/26 64 TON Total optical Networks AG AS12387 CH
77.237.204.32/27 32 TON Total optical Networks AG AS12387 LI
77.237.204.32/27 32 TON Total optical Networks AG AS12387 CH
77.237.204.0/27 32 TON Total optical Networks AG AS12387 CH
77.237.204.0/28 16 TON Total optical Networks AG AS12387 CH
77.237.204.0/28 16 TON Total optical Networks AG AS12387 CH
77.237.204.48/28 16 TON Total optical Networks AG AS12387 CH
77.237.204.16/29 8 TON Total optical Networks AG AS12387 CH
77.237.204.16/29 8 TON Total optical Networks AG AS12387 CH
77.237.204.44/30 4 TON Total optical Networks AG AS12387 CH
77.237.204.24/30 4 TON Total optical Networks AG AS12387 CH
77.237.204.24/30 4 TON Total optical Networks AG AS12387 CH
77.237.204.36/30 4 TON Total optical Networks AG AS12387 CH
77.237.204.42/31 2 TON Total optical Networks AG AS12387 CH
77.237.204.28/31 2 TON Total optical Networks AG AS12387 CH
77.237.204.34/31 2 TON Total optical Networks AG AS12387 CH
77.237.204.28/31 2 TON Total optical Networks AG AS12387 CH
77.237.204.41/32 1 TON Total optical Networks AG AS12387 CH
77.237.204.30/32 1 TON Total optical Networks AG AS12387 CH
77.237.204.30/32 1 TON Total optical Networks AG AS12387 LI
77.237.204.31/32 1 TON Total optical Networks AG AS12387 CH
77.237.204.31/32 1 TON Total optical Networks AG AS12387 CH
77.237.204.32/32 1 TON Total optical Networks AG AS12387 CH
77.237.204.33/32 1 TON Total optical Networks AG AS12387 LI
77.237.204.40/32 1 TON Total optical Networks AG AS12387 LI

First and last addresses in 77.237.204.0/24

77.237.204.0/24 runs from 77.237.204.0 to 77.237.204.255.

First 16
Last 16

Not announced as an exact prefix — covered by the announced supernet 77.237.192.0/19.

Announced prefix
Origin AS
Announcement samples
13,365
Last seen
2026-11-13 08:23:17

Frequently Asked Questions

What is 77.237.204.0/24?

77.237.204.0/24 is a CIDR network block containing 256 IPv4 addresses (from 77.237.204.0 to 77.237.204.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 77.237.204.0/24 network?

The 77.237.204.0/24 range is allocated to TON Total optical Networks AG and announced via AS12387 from Switzerland.

How many IP addresses are in 77.237.204.0/24?

77.237.204.0/24 contains exactly 256 usable IPv4 addresses. A /24 prefix length means 256 addresses are covered by this single routing entry.

Last updated: 2026-11-13 08:54:05 UTC
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