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
- Forward-confirmed reverse DNS (FCrDNS) +10
- Long-established allocation (30y) +6
- Not on any threat blocklist +5
- Isp allocation +5
- Trust score 91 / 100
Experimental · trust-vectors model v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- sv203183080134.extlink.co.jp
- Forward-confirmed (FCrDNS)
- ✓ Confirmed
- PTR TTL
- 38400 s
- Reverse DNS last checked
- 2026-10-07 23:29 UTC
- Forward DNS last checked
- 2026-10-07 23:29 UTC
Forward DNS records for sv203183080134.extlink.co.jp
| Type | Value | Priority | TTL |
|---|---|---|---|
| A | 203.183.80.134 | — | 7200s |
| MX | sv203183080134.extlink.co.jp | 10 | — |
| TXT | v=spf1 a mx ~all | — | — |
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Domains hosted
as of 2026-10-04 UTC1
Registrable domains (like example.com) with at least one name resolving to this IP — counted once a week from issued.live's DNS snapshot.
Domain data provided by issued.live — for full details visit https://issued.live/pricing
Network Allocation for 203.183.80.134
- CIDR range
- 203.183.80.0/20
- IP range (int)
- 3,417,788,416 — 3,417,792,511
- Prefix length
- /20
- Organization
- IDC Frontier Inc.
- ASN
- AS4694
- ASN name
- IDC Frontier Inc.
- Location
- Japan
- Coordinates
- 35.690000, 139.690000
- Accuracy radius
- 500 km
- Regional Internet Registry
- APNIC
- Allocated
- 1996-04-11
- Data source(s)
- maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
- Last updated
- 2026-10-08 08:49:28
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
Frequently Asked Questions
Who owns 203.183.80.134?
203.183.80.134 is allocated to IDC Frontier Inc. (AS4694), registered in Japan.
Where is 203.183.80.134 located?
The geolocation for 203.183.80.134 maps to Japan based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.
What network is 203.183.80.134 on?
203.183.80.134 belongs to the 203.183.80.0/20 network block announced by AS4694. This range contains 4,096 addresses.
Does 203.183.80.134 have a reverse DNS record?
Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.
Neighbors
Other addresses in the same /24.
