CIDR Range

217.15.104.0/21

2.0K IPs /21 GO p.l.c. AS15735 Malta RIPE

Addresses

2,048

2.0K

IP Range

217.15.104.0

→ 217.15.111.255

Sub-ranges

within this block

PTR Density

3.7%

76 of 2.0K 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.

80/100

Trusted

How this score is built

Baseline (neutral) 65
Long-established allocation (26y) +6
Has a reverse-DNS (PTR) record +5
Enterprise allocation +4
Trust score 80 / 100

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

Geolocation

First and last addresses in 217.15.104.0/21

217.15.104.0/21 runs from 217.15.104.0 to 217.15.111.255.

First 16

217.15.104.0 217.15.104.1 217.15.104.2 217.15.104.3 217.15.104.4 217.15.104.5 217.15.104.6 217.15.104.7 217.15.104.8 217.15.104.9 217.15.104.10 217.15.104.11 217.15.104.12 217.15.104.13 217.15.104.14 217.15.104.15

Last 16

217.15.111.240 217.15.111.241 217.15.111.242 217.15.111.243 217.15.111.244 217.15.111.245 217.15.111.246 217.15.111.247 217.15.111.248 217.15.111.249 217.15.111.250 217.15.111.251 217.15.111.252 217.15.111.253 217.15.111.254 217.15.111.255

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 217.15.96.0/20.

Announced prefix

217.15.96.0/20

Origin AS

AS15735

Announcement samples

21,006

Last seen

2026-11-06 01:53:46

Frequently Asked Questions

What is 217.15.104.0/21?

217.15.104.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 217.15.104.0 to 217.15.111.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 217.15.104.0/21 network?

The 217.15.104.0/21 range is allocated to GO p.l.c. and announced via AS15735 from Malta.

Last updated: 2026-11-06 02:39:05 UTC