Data as of Nov 13, 2026

133.31.0.0/16

9 residential-proxy exits · 30 days

Tokyo University of Science · space held by Japan Network Information Center

Announcement

this exact prefix

No RPKI

Announced by

AS55390

Type

Business

Residential-proxy exits

Proxy exits

0.01% of its addresses · 30 days

Spread

6 of 256

/24s with at least one exit

Providers

selling exits here

Oct 14, 2026 – Nov 12, 2026

Exits seen per day

611 observations

/24s with the most always-on exits

/24	Always-on exits	Proxy exits
133.31.18.0/24	0	2
133.31.23.0/24	0	2
133.31.89.0/24	0	2
133.31.87.0/24	0	1
133.31.197.0/24	0	1
133.31.219.0/24	0	1

Proxy providers listing exits

BottingTools
Byteful
EnigmaProxy
FLEETPROXY
FloppyData
NovaProxy
Proxiware
ProxyEmpire
ProxyRack
RainProxy
Shifter
VantageProxies
ZENPROXY_PREMIUM

Announcements

More specific

Announcements inside

Prefix	Origin	Type	Proxy exits	Holder	RPKI
133.31.0.0/17 since Nov 2020	AS55390	Business	7	Japan Network Information Center
133.31.128.0/17 since Nov 2020	AS55390	Business	2	Japan Network Information Center

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern: Stable
First seen: May 2005
Current origin since: Dec 2010 · 16 yr
Origin networks: 3
Last change of origin: Dec 2010

Recorded history

History

Handoffs: 2