Addresses
65,536
65.5K
Sub-ranges
18+
within this block
PTR Density
0.0%
1 of 65.5K 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.
73/100
Moderate
How this score is built
- Baseline (neutral) 65
- Has a reverse-DNS (PTR) record +5
- Established allocation (14y) +3
- Trust score 73 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 5.137.0.0/16
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 5.137.128.0/18 | 16.4K | Rostelecom | AS12389 | RU |
| 5.137.192.0/19 | 8.2K | Rostelecom | AS12389 | RU |
| 5.137.96.0/19 | 8.2K | Rostelecom | AS12389 | RU |
| 5.137.64.0/19 | 8.2K | Rostelecom | AS12389 | RU |
| 5.137.0.0/20 | 4.1K | Rostelecom | AS12389 | RU |
| 5.137.224.0/20 | 4.1K | Rostelecom | AS12389 | RU |
| 5.137.112.0/20 | 4.1K | Rostelecom | AS12389 | RU |
| 5.137.96.0/20 | 4.1K | Rostelecom | AS12389 | RU |
| 5.137.80.0/20 | 4.1K | Rostelecom | AS12389 | RU |
| 5.137.64.0/20 | 4.1K | Rostelecom | AS12389 | RU |
| 5.137.48.0/20 | 4.1K | Rostelecom | AS12389 | RU |
| 5.137.32.0/20 | 4.1K | Rostelecom | AS12389 | RU |
| 5.137.16.0/20 | 4.1K | Rostelecom | AS12389 | RU |
| 5.137.240.0/20 | 4.1K | Rostelecom | AS12389 | RU |
| 5.137.56.0/21 | 2.0K | Rostelecom | AS12389 | RU |
| 5.137.48.0/21 | 2.0K | Rostelecom | AS12389 | RU |
| 5.137.224.0/21 | 2.0K | Rostelecom | AS12389 | RU |
| 5.137.232.0/21 | 2.0K | Rostelecom | AS12389 | RU |
Geolocation
First 256 of 65,536 IP addresses in 5.137.0.0/16
5.137.0.0
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+ 65.3K more (range too large to list inline)
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 5.136.0.0/13.
Announced prefix
Origin AS
Announcement samples
27,196
Last seen
2026-07-24 02:28:05
Frequently Asked Questions
What is 5.137.0.0/16?
5.137.0.0/16 is a CIDR network block containing 65,536 IPv4 addresses (from 5.137.0.0 to 5.137.255.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 5.137.0.0/16 network?
The 5.137.0.0/16 range is allocated to Rostelecom and announced via AS12389 from Russia.
Last updated: 2026-07-24 02:40:31 UTC
