Skip to main content
WorldIP.io
CIDR Range

87.243.120.0/21

Addresses
2,048
2.0K
Sub-ranges
0+
within this block
PTR Density
99.6%
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 87.243.120.0/21

87.243.120.0/21 runs from 87.243.120.0 to 87.243.127.255.

First 16
Last 16

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

Announced prefix
Origin AS
Announcement samples
37,945
Last seen
2026-10-27 19:24:04

Frequently Asked Questions

What is 87.243.120.0/21?

87.243.120.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 87.243.120.0 to 87.243.127.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 87.243.120.0/21 network?

The 87.243.120.0/21 range is allocated to Vivacom Bulgaria EAD and announced via AS8866 from Bulgaria.

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