CIDR Range

51.89.15.0/28

16 IPs /28 OVH SAS AS16276 United Kingdom RIPE

Addresses

IP Range

51.89.15.0

→ 51.89.15.15

Sub-ranges

within this block

PTR Density

87.5%

14 of 16 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.

76/100

Moderate

How this score is built

Baseline (neutral) 65
Long-established allocation (33y) +6
Has a reverse-DNS (PTR) record +5
Trust score 76 / 100

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

Geolocation

All 16 IP addresses in 51.89.15.0/28

51.89.15.0 51.89.15.1 51.89.15.2 51.89.15.3 51.89.15.4 51.89.15.5 51.89.15.6 51.89.15.7 51.89.15.8 51.89.15.9 51.89.15.10 51.89.15.11 51.89.15.12 51.89.15.13 51.89.15.14 51.89.15.15

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 51.89.0.0/16.

Announced prefix

51.89.0.0/16

Origin AS

AS16276

Announcement samples

21,525

Last seen

2026-07-18 11:34:49

Frequently Asked Questions

What is 51.89.15.0/28?

51.89.15.0/28 is a CIDR network block containing 16 IPv4 addresses (from 51.89.15.0 to 51.89.15.15). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 51.89.15.0/28 network?

The 51.89.15.0/28 range is allocated to OVH SAS and announced via AS16276 from United Kingdom.

How many IP addresses are in 51.89.15.0/28?

51.89.15.0/28 contains exactly 16 usable IPv4 addresses. A /28 prefix length means 16 addresses are covered by this single routing entry.

Last updated: 2026-07-18 11:40:32 UTC