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CIDR
/23 · 512 IPs
ASN
ARTERIA Networks Corporation
Reverse DNS
221x248x242x179.ap221.ftth.ucom.ne.jp
Last scanned 4 hr ago
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.

86/100
Trusted
How this score is built

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

DNS records

Reverse DNS (PTR)
221x248x242x179.ap221.ftth.ucom.ne.jp
Forward-confirmed (FCrDNS)
✓ Confirmed
PTR TTL
3600 s
Reverse DNS last checked
2026-07-26 18:02 UTC
Forward DNS last checked
2026-07-26 18:02 UTC

Forward DNS records for 221x248x242x179.ap221.ftth.ucom.ne.jp

TypeValuePriorityTTL
A 221.248.242.179 172800s
every IP & sub-domain we've seen under this domain

Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.

Network Allocation for 221.248.242.179

CIDR range
221.248.242.0/23
IP range (int)
3,724,079,616 — 3,724,080,127
Prefix length
/23
Organization
ARTERIA Networks Corporation
ASN
AS17506
ASN name
ARTERIA Networks Corporation
Location
Chiba, Chiba, Japan
Coordinates
35.602900, 140.118700
Accuracy radius
5 km
Postal code
260-0021
Regional Internet Registry
APNIC
Allocated
2003-08-07
Data source(s)
maxmind_city, maxmind_country, maxmind_asn, ipinfo_lite
Last updated
2026-07-21 04:10:44

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

Announced prefix
Origin AS
Announcement samples
10,112
Last seen
2026-07-26 21:45:18

Frequently Asked Questions

Who owns 221.248.242.179?

221.248.242.179 is allocated to ARTERIA Networks Corporation (AS17506), registered in Chiba, Japan.

Where is 221.248.242.179 located?

The geolocation for 221.248.242.179 maps to Chiba, 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 221.248.242.179 on?

221.248.242.179 belongs to the 221.248.242.0/23 network block announced by AS17506. This range contains 512 addresses.

Does 221.248.242.179 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: 2026-07-26 22:22:24 UTC
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