CIDR Range

103.131.64.0/23

512 IPs /23 DE-CORP AS63989 Thailand APNIC

Addresses

512

IP Range

103.131.64.0

→ 103.131.65.255

Sub-ranges

within this block

PTR Density

99.0%

507 of 512 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.

73/100

Moderate

How this score is built

Baseline (neutral) 65
Has a reverse-DNS (PTR) record +5
Established allocation (8y) +3
Trust score 73 / 100

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

Ranges inside 103.131.64.0/23

CIDR	IPs	Organization	ASN	Country
103.131.64.0/24	256	DE-CORP	AS63989	US
103.131.64.0/24	256	DE-CORP	AS63989	TH
103.131.64.0/24	256	DE-CORP	AS63989	US
103.131.65.0/24	256	DE-CORP	AS63989	TH
103.131.65.0/24	256	DE-CORP	AS63989	TH
103.131.65.0/24	256	DE-CORP	AS63989	SG

First and last addresses in 103.131.64.0/23

103.131.64.0/23 runs from 103.131.64.0 to 103.131.65.255.

First 16

103.131.64.0 103.131.64.1 103.131.64.2 103.131.64.3 103.131.64.4 103.131.64.5 103.131.64.6 103.131.64.7 103.131.64.8 103.131.64.9 103.131.64.10 103.131.64.11 103.131.64.12 103.131.64.13 103.131.64.14 103.131.64.15

Last 16

103.131.65.240 103.131.65.241 103.131.65.242 103.131.65.243 103.131.65.244 103.131.65.245 103.131.65.246 103.131.65.247 103.131.65.248 103.131.65.249 103.131.65.250 103.131.65.251 103.131.65.252 103.131.65.253 103.131.65.254 103.131.65.255

Frequently Asked Questions

What is 103.131.64.0/23?

103.131.64.0/23 is a CIDR network block containing 512 IPv4 addresses (from 103.131.64.0 to 103.131.65.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 103.131.64.0/23 network?

The 103.131.64.0/23 range is allocated to DE-CORP and announced via AS63989 from Thailand.

Last updated: 2026-11-06 14:39:06 UTC