Data as of Nov 10, 2026
Autonomous system

AS131893

RICOH Company, Ltd.

Announces 5,632 addresses in 22 prefixes. None of it is anonymizer space.

Type
Business
JP

Announced prefixes

Arrived
PrefixTypeHolderRPKI
133.139.18.0/24
since Mar 2015
BusinessJapan Network Information Center
133.139.19.0/24
since Oct 2016
BusinessJapan Network Information Center
133.139.20.0/24
since Dec 2016
BusinessJapan Network Information Center
133.139.21.0/24
since Oct 2016
BusinessJapan Network Information Center
133.139.25.0/24
since Oct 2016
BusinessJapan Network Information Center
133.139.34.0/24
since Oct 2016
BusinessJapan Network Information Center
133.139.44.0/24
since Oct 2016
BusinessJapan Network Information Center
133.139.45.0/24
since Oct 2016
BusinessJapan Network Information Center
133.139.55.0/24
since Oct 2016
BusinessJapan Network Information Center
133.139.70.0/24
since Dec 2016
BusinessJapan Network Information Center
133.139.71.0/24
since Dec 2016
BusinessJapan Network Information Center
133.139.72.0/24
since Jun 2023
BusinessJapan Network Information Center
133.139.74.0/24
since Jun 2025
BusinessJapan Network Information Center
133.139.77.0/24
since Jun 2025
BusinessJapan Network Information Center
133.139.88.0/24
since Jan 2017
BusinessJapan Network Information Center
133.139.94.0/24
since Jun 2023
BusinessJapan Network Information Center
133.139.109.0/24
since Jan 2017
BusinessJapan Network Information Center
133.139.114.0/24
since Jan 2017
BusinessJapan Network Information Center
133.139.241.0/24
since Aug 2017
BusinessJapan Network Information Center
133.139.242.0/24
since Aug 2017
BusinessJapan Network Information Center
133.139.248.0/24
since Apr 2019
BusinessJapan Network Information Center
210.173.216.0/24
since Jun 2019
BusinessJapan Network Information Center

Network & history

Routing patterns

How its announcements have moved

Arrivals

Year each prefix's current origin began announcing it