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CIDR
/18 · 16.4K IPs
ASN
Mitsubishi Electric Information Network Corporation
Reverse DNS
No PTR record
Blocklisted
Checking…
Scanning blocklists

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.

81/100
Trusted
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

Network Allocation for 203.178.91.148

CIDR range
203.178.64.0/18
IP range (int)
3,417,456,640 — 3,417,473,023
Prefix length
/18
Organization
Mitsubishi Electric Information Network Corporation
ASN
AS4680
ASN name
Mitsubishi Electric Information Network Corporation
Location
Japan
Coordinates
35.690000, 139.690000
Accuracy radius
500 km
Regional Internet Registry
APNIC
Allocated
1996-04-11
Data source(s)
maxmind_asn, ipinfo_lite, maxmind_city, maxmind_country
Last updated
2026-07-09 00:21:20

Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.

Announced prefix
Origin AS
Announcement samples
14,386
Last seen
2026-07-28 04:49:52

Frequently Asked Questions

Who owns 203.178.91.148?

203.178.91.148 is allocated to Mitsubishi Electric Information Network Corporation (AS4680), registered in Japan.

Where is 203.178.91.148 located?

The geolocation for 203.178.91.148 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 203.178.91.148 on?

203.178.91.148 belongs to the 203.178.64.0/18 network block announced by AS4680. This range contains 16,384 addresses.

Does 203.178.91.148 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.

Related

Last updated: 2026-07-28 04:59:53 UTC
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