Addresses
512
512
Sub-ranges
20+
within this block
PTR Density
47.1%
241 of 512 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 v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 51.83.178.0/23
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 51.83.178.0/24 | 256 | OVH SAS | AS16276 | FR |
| 51.83.178.0/24 | 256 | OVH SAS | AS16276 | FR |
| 51.83.179.128/25 | 128 | OVH SAS | AS16276 | FR |
| 51.83.179.128/25 | 128 | OVH SAS | AS16276 | FR |
| 51.83.179.64/26 | 64 | OVH SAS | AS16276 | FR |
| 51.83.179.64/26 | 64 | OVH SAS | AS16276 | FR |
| 51.83.179.32/27 | 32 | OVH SAS | AS16276 | FR |
| 51.83.179.32/27 | 32 | OVH SAS | AS16276 | FR |
| 51.83.179.0/28 | 16 | OVH SAS | AS16276 | FR |
| 51.83.179.0/28 | 16 | OVH SAS | AS16276 | FR |
| 51.83.179.24/29 | 8 | OVH SAS | AS16276 | FR |
| 51.83.179.24/29 | 8 | OVH SAS | AS16276 | FR |
| 51.83.179.20/30 | 4 | OVH SAS | AS16276 | FR |
| 51.83.179.20/30 | 4 | OVH SAS | AS16276 | FR |
| 51.83.179.18/31 | 2 | OVH SAS | AS16276 | FR |
| 51.83.179.18/31 | 2 | OVH SAS | AS16276 | FR |
| 51.83.179.17/32 | 1 | OVH SAS | AS16276 | FR |
| 51.83.179.17/32 | 1 | OVH SAS | AS16276 | FR |
| 51.83.179.16/32 | 1 | OVH SAS | AS16276 | PL |
| 51.83.179.16/32 | 1 | OVH SAS | AS16276 | FR |
Geolocation
First 256 of 512 IP addresses in 51.83.178.0/23
51.83.178.0
51.83.178.1
51.83.178.2
51.83.178.3
51.83.178.4
51.83.178.5
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51.83.178.254
51.83.178.255
+ 256 more (range too large to list inline)
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 51.83.0.0/16.
Announced prefix
Origin AS
Announcement samples
44,344
Last seen
2026-07-23 21:24:28
Frequently Asked Questions
What is 51.83.178.0/23?
51.83.178.0/23 is a CIDR network block containing 512 IPv4 addresses (from 51.83.178.0 to 51.83.179.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 51.83.178.0/23 network?
The 51.83.178.0/23 range is allocated to OVH SAS and announced via AS16276 from France.
Last updated: 2026-07-23 21:25:31 UTC
