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CIDR Range

42.62.40.0/21

2.0K IPs /21 IDC, China Telecommunications Corporation AS23724 China APNIC
Addresses
2,048
2.0K
IP Range
42.62.40.0
→ 42.62.47.255
Sub-ranges
0+
within this block
PTR Density
0.9%
19 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.

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 →

Geolocation

First and last addresses in 42.62.40.0/21

42.62.40.0/21 runs from 42.62.40.0 to 42.62.47.255.

First 16
42.62.40.0 42.62.40.1 42.62.40.2 42.62.40.3 42.62.40.4 42.62.40.5 42.62.40.6 42.62.40.7 42.62.40.8 42.62.40.9 42.62.40.10 42.62.40.11 42.62.40.12 42.62.40.13 42.62.40.14 42.62.40.15
Last 16
42.62.47.240 42.62.47.241 42.62.47.242 42.62.47.243 42.62.47.244 42.62.47.245 42.62.47.246 42.62.47.247 42.62.47.248 42.62.47.249 42.62.47.250 42.62.47.251 42.62.47.252 42.62.47.253 42.62.47.254 42.62.47.255

BGP Routing

Live BGP anomalies →

This block is announced in BGP, observed across our RIPE RIS collectors.

Announced prefix
42.62.40.0/21
Origin AS
AS23724
⚠ 2 origins (MOAS)
Announcement samples
27,783
Last seen
2026-10-27 22:14:33
Origins seen: AS23724 · 27,783 AS9808 · 76

Frequently Asked Questions

What is 42.62.40.0/21?

42.62.40.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 42.62.40.0 to 42.62.47.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 42.62.40.0/21 network?

The 42.62.40.0/21 range is allocated to IDC, China Telecommunications Corporation and announced via AS23724 from China.

Last updated: 2026-10-27 22:39:05 UTC
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