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CIDR Range

158.51.78.0/25

128 IPs /25 Sharktech AS209604 Bulgaria ARIN
Addresses
128
128
IP Range
158.51.78.0
→ 158.51.78.127
Sub-ranges
0+
within this block
PTR Density
0.8%
1 of 128 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.

58/100
Caution
How this score is built

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

Geolocation

All 128 IP addresses in 158.51.78.0/25

158.51.78.0 158.51.78.1 158.51.78.2 158.51.78.3 158.51.78.4 158.51.78.5 158.51.78.6 158.51.78.7 158.51.78.8 158.51.78.9 158.51.78.10 158.51.78.11 158.51.78.12 158.51.78.13 158.51.78.14 158.51.78.15 158.51.78.16 158.51.78.17 158.51.78.18 158.51.78.19 158.51.78.20 158.51.78.21 158.51.78.22 158.51.78.23 158.51.78.24 158.51.78.25 158.51.78.26 158.51.78.27 158.51.78.28 158.51.78.29 158.51.78.30 158.51.78.31 158.51.78.32 158.51.78.33 158.51.78.34 158.51.78.35 158.51.78.36 158.51.78.37 158.51.78.38 158.51.78.39 158.51.78.40 158.51.78.41 158.51.78.42 158.51.78.43 158.51.78.44 158.51.78.45 158.51.78.46 158.51.78.47 158.51.78.48 158.51.78.49 158.51.78.50 158.51.78.51 158.51.78.52 158.51.78.53 158.51.78.54 158.51.78.55 158.51.78.56 158.51.78.57 158.51.78.58 158.51.78.59 158.51.78.60 158.51.78.61 158.51.78.62 158.51.78.63 158.51.78.64 158.51.78.65 158.51.78.66 158.51.78.67 158.51.78.68 158.51.78.69 158.51.78.70 158.51.78.71 158.51.78.72 158.51.78.73 158.51.78.74 158.51.78.75 158.51.78.76 158.51.78.77 158.51.78.78 158.51.78.79 158.51.78.80 158.51.78.81 158.51.78.82 158.51.78.83 158.51.78.84 158.51.78.85 158.51.78.86 158.51.78.87 158.51.78.88 158.51.78.89 158.51.78.90 158.51.78.91 158.51.78.92 158.51.78.93 158.51.78.94 158.51.78.95 158.51.78.96 158.51.78.97 158.51.78.98 158.51.78.99 158.51.78.100 158.51.78.101 158.51.78.102 158.51.78.103 158.51.78.104 158.51.78.105 158.51.78.106 158.51.78.107 158.51.78.108 158.51.78.109 158.51.78.110 158.51.78.111 158.51.78.112 158.51.78.113 158.51.78.114 158.51.78.115 158.51.78.116 158.51.78.117 158.51.78.118 158.51.78.119 158.51.78.120 158.51.78.121 158.51.78.122 158.51.78.123 158.51.78.124 158.51.78.125 158.51.78.126 158.51.78.127

BGP Routing

Live BGP anomalies →

Not announced as an exact prefix — covered by the announced supernet 158.51.78.0/24.

Announced prefix
158.51.78.0/24
Origin AS
AS36369
⚠ 3 origins (MOAS)
Announcement samples
3,211
Last seen
2026-06-30 13:17:19
Origins seen: AS36369 · 3,211 AS209604 · 2,674 AS46844 · 1,637

Frequently Asked Questions

What is 158.51.78.0/25?

158.51.78.0/25 is a CIDR network block containing 128 IPv4 addresses (from 158.51.78.0 to 158.51.78.127). CIDR notation combines an IP address with a prefix length to define a range of addresses.

Who owns the 158.51.78.0/25 network?

The 158.51.78.0/25 range is allocated to Sharktech and announced via AS209604 from Bulgaria.

How many IP addresses are in 158.51.78.0/25?

158.51.78.0/25 contains exactly 128 usable IPv4 addresses. A /25 prefix length means 128 addresses are covered by this single routing entry.

Last updated: 2026-07-19 21:10:33 UTC
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