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CIDR Range

195.81.0.0/18

16.4K IPs /18 GTT Communications Inc. AS3257 United States RIPE
Addresses
16,384
16.4K
IP Range
195.81.0.0
→ 195.81.63.255
Sub-ranges
50+
within this block
PTR Density
9.1%
1.5K of 16.4K 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.

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 →

Ranges inside 195.81.0.0/18

CIDRIPsOrganizationASNCountry
195.81.16.0/20 4.1K GTT Communications Inc. AS3257 IT
195.81.0.0/21 2.0K GTT Communications Inc. AS3257 DE
195.81.24.0/21 2.0K GTT Communications Inc. AS3257 US
195.81.8.0/22 1.0K GTT Communications Inc. AS3257 US
195.81.48.0/22 1.0K GTT Communications Inc. AS3257 US
195.81.48.0/22 1.0K GTT Communications Inc. AS3257 IT
195.81.0.0/22 1.0K GTT Communications Inc. AS3257 IT
195.81.16.0/22 1.0K GTT Communications Inc. AS3257 US
195.81.40.0/22 1.0K GTT Communications Inc. AS3257 DE
195.81.8.0/22 1.0K GTT Communications Inc. AS3257 IT
195.81.0.0/22 1.0K GTT Communications Inc. AS3257 US
195.81.56.0/23 512 GTT Communications Inc. AS3257 US
195.81.34.0/23 512 GTT Communications Inc. AS3257 ES
195.81.14.0/23 512 GTT Communications Inc. AS3257 US
195.81.46.0/23 512 GTT Communications Inc. AS3257 IT
195.81.46.0/23 512 GTT Communications Inc. AS3257 US
195.81.14.0/23 512 GTT Communications Inc. AS3257 IT
195.81.14.0/23 512 GTT Communications Inc. AS3257 DE
195.81.46.0/23 512 GTT Communications Inc. AS3257 DE
195.81.24.0/23 512 GTT Communications Inc. AS3257 DE
195.81.54.0/23 512 GTT Communications Inc. AS3257 US
195.81.52.0/23 512 GTT Communications Inc. AS3257 ES
195.81.50.0/23 512 GTT Communications Inc. AS3257 FR
195.81.18.0/23 512 GTT Communications Inc. AS3257 DE
195.81.56.0/23 512 GTT Communications Inc. AS3257 IT
195.81.60.0/23 512 GTT Communications Inc. AS3257 IT
195.81.60.0/23 512 GTT Communications Inc. AS3257 US
195.81.8.0/23 512 GTT Communications Inc. AS3257 DE
195.81.6.0/23 512 GTT Communications Inc. AS3257 US
195.81.54.0/23 512 GTT Communications Inc. AS3257 IT
195.81.6.0/23 512 GTT Communications Inc. AS3257 IT
195.81.38.0/23 512 GTT Communications Inc. AS3257 IT

First and last addresses in 195.81.0.0/18

195.81.0.0/18 runs from 195.81.0.0 to 195.81.63.255.

First 16
195.81.0.0 195.81.0.1 195.81.0.2 195.81.0.3 195.81.0.4 195.81.0.5 195.81.0.6 195.81.0.7 195.81.0.8 195.81.0.9 195.81.0.10 195.81.0.11 195.81.0.12 195.81.0.13 195.81.0.14 195.81.0.15
Last 16
195.81.63.240 195.81.63.241 195.81.63.242 195.81.63.243 195.81.63.244 195.81.63.245 195.81.63.246 195.81.63.247 195.81.63.248 195.81.63.249 195.81.63.250 195.81.63.251 195.81.63.252 195.81.63.253 195.81.63.254 195.81.63.255

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 195.81.0.0/16.

Announced prefix
195.81.0.0/16
Origin AS
AS3257
⚠ 2 origins (MOAS)
Announcement samples
9,339
Last seen
2026-11-13 09:19:44
Origins seen: AS3257 · 9,339 AS286 · 1

Frequently Asked Questions

What is 195.81.0.0/18?

195.81.0.0/18 is a CIDR network block containing 16,384 IPv4 addresses (from 195.81.0.0 to 195.81.63.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 195.81.0.0/18 network?

The 195.81.0.0/18 range is allocated to GTT Communications Inc. and announced via AS3257 from United States.

Last updated: 2026-11-13 09:39:05 UTC
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