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CIDR
/21 · 2.0K IPs
ASN
NTT DOCOMO BUSINESS,Inc.
Reverse DNS
i220-221-144-210.s99.a049.ap.plala.or.jp
Last scanned 1 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.

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 220.221.144.210

CIDR range
220.221.144.0/21
IP range (int)
3,705,507,840 — 3,705,509,887
Prefix length
/21
Organization
NTT DOCOMO BUSINESS, Inc.
ASN
AS4713
ASN name
NTT DOCOMO BUSINESS,Inc.
Location
Sakura, Chiba, Japan
Coordinates
35.713400, 140.231200
Accuracy radius
50 km
Postal code
285-0021
Regional Internet Registry
APNIC
Allocated
2003-02-10
Data source(s)
maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
Last updated
2026-08-18 04:58:21

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

Announced prefix
Origin AS
Announcement samples
8,076
Last seen
2026-09-02 20:11:15

Frequently Asked Questions

Who owns 220.221.144.210?

220.221.144.210 is allocated to NTT DOCOMO BUSINESS, Inc. (AS4713), registered in Sakura, Japan.

Where is 220.221.144.210 located?

The geolocation for 220.221.144.210 maps to Sakura, 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 220.221.144.210 on?

220.221.144.210 belongs to the 220.221.144.0/21 network block announced by AS4713. This range contains 2,048 addresses.

Does 220.221.144.210 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: 2026-09-02 20:55:59 UTC
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