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CIDR Range

131.103.72.0/21

2.0K IPs /21 HostRoyale Technologies Pvt Ltd AS203020 United States ARIN
Addresses
2,048
2.0K
IP Range
131.103.72.0
→ 131.103.79.255
Sub-ranges
0+
within this block
PTR Density
0.0%
0 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.

75/100
Moderate
How this score is built

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

Geolocation

First and last addresses in 131.103.72.0/21

131.103.72.0/21 runs from 131.103.72.0 to 131.103.79.255.

First 16
131.103.72.0 131.103.72.1 131.103.72.2 131.103.72.3 131.103.72.4 131.103.72.5 131.103.72.6 131.103.72.7 131.103.72.8 131.103.72.9 131.103.72.10 131.103.72.11 131.103.72.12 131.103.72.13 131.103.72.14 131.103.72.15
Last 16
131.103.79.240 131.103.79.241 131.103.79.242 131.103.79.243 131.103.79.244 131.103.79.245 131.103.79.246 131.103.79.247 131.103.79.248 131.103.79.249 131.103.79.250 131.103.79.251 131.103.79.252 131.103.79.253 131.103.79.254 131.103.79.255

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 131.103.64.0/19.

Announced prefix
131.103.64.0/19
Origin AS
AS203020
Announcement samples
92,779
Last seen
2026-10-27 14:26:12

RIR Ownership History

Atom feed ⇲

Allocation changes captured from regional internet registry (RIR) delegation files, re-imported every six hours.

Date Event From To
2026-05-10 New Allocation — US

Frequently Asked Questions

What is 131.103.72.0/21?

131.103.72.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 131.103.72.0 to 131.103.79.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 131.103.72.0/21 network?

The 131.103.72.0/21 range is allocated to HostRoyale Technologies Pvt Ltd and announced via AS203020 from United States.

Last updated: 2026-10-27 14:24:05 UTC
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