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 (38y) +6
- Has a reverse-DNS (PTR) record +5
- Isp allocation +5
- Trust score 81 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
Geolocation
All 2 IP addresses in 129.250.3.248/31
BGP Routing
Live BGP anomalies →Not announced as an exact prefix — covered by the announced supernet 129.250.0.0/16.
RIR Ownership History
Atom feed ⇲Allocation changes captured from regional internet registry (RIR) delegation files, re-imported every six hours.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | New Allocation | — | US |
Frequently Asked Questions
What is 129.250.3.248/31?
129.250.3.248/31 is a CIDR network block containing 2 IPv4 addresses (from 129.250.3.248 to 129.250.3.249). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 129.250.3.248/31 network?
The 129.250.3.248/31 range is allocated to NTT America, Inc. and announced via AS2914 from United States.
How many IP addresses are in 129.250.3.248/31?
129.250.3.248/31 contains exactly 2 usable IPv4 addresses. A /31 prefix length means 2 addresses are covered by this single routing entry.
