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InternetData
IPv4 address

103.255.20.40

An address in Tokyo, Japan, used by 308-1 Hayatochonai Kirishimashi, announced by NTT PC Communications, Inc. (AS2514). Of our anonymity, network and service databases, it is in Hosting IP.

8 of 22 address-keyed databases hold it

Summary
Location
Tokyo, Japan
Company
308-1 Hayatochonai Kirishimashi
Prefix
103.255.20.0/22
Hostname
smtp40.mail.20.255.103.in-addr.arpa
Registered to
529 3-12 Yotuya Shinjuku-ku, Tokyo
Network type
ISP
Anycast
No

Anonymity

Whether the address hides someone else: a VPN, Tor, a relay, a proxy pool, or a hosting range.

1 of 8 hold it
Confidence
medium
Last seen
2026-10-17

Ownership

Who holds the address: the AS announcing it, the registry record, the abuse contact and its name in DNS.

5 of 6 hold it
Company
308-1 Hayatochonai Kirishimashi
Type
Business
Registered in
Japan
AS number
AS2514
Name
NTT PC Communications, Inc.
Prefix
103.255.20.0/22
RPKI
not found
Type
ISP
Domain
nttpc.co.jp
Registered in
Japan
Name
529 3-12 Yotuya Shinjuku-ku, Tokyo
Handle
SYSTEMSUPPORT
Status
ASSIGNED NON-PORTABLE
Registry
apnic
Domain
103.in-addr.arpa
Name
ABUSE SYSTEMSUPPORT
Address
529 3-12 Yotuya Shinjuku-ku, Tokyo, JAPAN
Network
103.255.20.32-103.255.20.47
Hostname
smtp40.mail.20.255.103.in-addr.arpa
Not seen inIP RWHOIS

Geolocation

Where the address is, and what that place uses.

2 of 2 hold it
City
Tokyo
Region
Tokyo
Postal code
100-0001
Country
Japan
Continent
Asia
Timezone
Asia/Tokyo

Network

What kind of network it is on: a mobile carrier, an anycast service, a CDN edge.

0 of 3 hold it

Services

What our own internet-wide measurement found listening on it.

0 of 3 hold it
00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.

01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.