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.
- Baseline (neutral) 65
- Long-established allocation (17y) +6
- Has a reverse-DNS (PTR) record +5
- Isp allocation +5
- Trust score 81 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Geolocation
All 2 IP addresses in 183.91.16.12/31
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 183.91.16.0/22.
Frequently Asked Questions
What is 183.91.16.12/31?
183.91.16.12/31 is a CIDR network block containing 2 IPv4 addresses (from 183.91.16.12 to 183.91.16.13). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 183.91.16.12/31 network?
The 183.91.16.12/31 range is allocated to CMC Telecom Infrastructure Company and announced via AS45903 from Vietnam.
How many IP addresses are in 183.91.16.12/31?
183.91.16.12/31 contains exactly 2 usable IPv4 addresses. A /31 prefix length means 2 addresses are covered by this single routing entry.
