AS5721 National Defense University
AS5721 (NDU-NET) is registered to National Defense University in US. It originates 2 prefixes in the global routing table.
2
IPv4 prefixes
0
IPv6 prefixes
512
IPv4 addresses
0%
RPKI valid
Registration
Who holds AS5721
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
AS number
AS5721
Handle
NDU-NET
Organization
National Defense University
Country
US
ASPA
None published
Routing
What AS5721 announces
Prefixes originated by AS5721 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
IPv4 prefixes
2
IPv6 prefixes
0
IPv4 addresses
512 (2 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
2
ROAs naming AS5721
0
With an IRR route object
0 0%
Prefixes
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
Neighbors
Who AS5721 is reached through
The AS just before AS5721 in the paths our looking glass collectors hold, for 2 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.