Home / Prefixes / 2001:df0:cf::/48

2001:df0:cf::/48 No ROA

Tokyo University of Science · Updated 21.10.2026 22:14 UTC
Announced IPv6 AS55390 Tokyo University of Science JP Japan

Network Information

Prefix
2001:df0:cf::/48
Network Description:
—
Address range
2001:df0:cf:: – 2001:df0:cf:ffff:ffff:ffff:ffff:ffff
Size
65,536 × /64
Origin AS
AS55390 Tokyo University of Science
AS path
AS208972AS9121AS2497AS2907AS2907AS2907AS55390
Paths seen
1
RPKI
No ROA
Location
JP Japan
First seen
21.10.2026

RPKI ROAs

No ROA covers this prefix.
None in the routing table.
None in the routing table.
PrefixOrigin ASDescriptionLocationRPKI
133.31.0.0/16 AS55390 Japan Network Information Center JP Matsudo No ROA
133.31.0.0/17 AS55390 Japan Network Information Center JP Matsudo No ROA
133.31.128.0/17 AS55390 Japan Network Information Center JP Katsushika No ROA

Origin AS

Details →
AS
AS55390
Name
Tokyo University of Science
Prefixes
3 IPv4 · 1 IPv6
Peers
1 (1 Upstreams)

Approximate location

GeoLite2

External links

RIPEstat bgp.tools Hurricane Electric IRR Explorer Looking Glass JSON API