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CIDR Range

113.61.112.0/21

Addresses
2,048
2.0K
Sub-ranges
0+
within this block
PTR Density
99.2%
2.0K 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

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

Geolocation

First and last addresses in 113.61.112.0/21

113.61.112.0/21 runs from 113.61.112.0 to 113.61.119.255.

First 16
Last 16

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

Announced prefix
Origin AS
Announcement samples
14,157
Last seen
2026-10-27 15:21:16

Frequently Asked Questions

What is 113.61.112.0/21?

113.61.112.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 113.61.112.0 to 113.61.119.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 113.61.112.0/21 network?

The 113.61.112.0/21 range is allocated to JCOM Co., Ltd. and announced via AS4721 from Japan.

Last updated: 2026-10-27 15:39:06 UTC
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