ResearchRouting table, RPKI, IRR & looking glass

AS3949 NTT America, Inc.

AS3949 (NTTA-3946) is registered to NTT America, Inc. in US. It originates 48 prefixes in the global routing table.

47
IPv4 prefixes
1
IPv6 prefixes
15,100
IPv4 addresses
83%
RPKI valid

Who holds AS3949

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS3949
Handle
NTTA-3946
Organization
NTT America, Inc.
Country
US
ASPA
None published

What AS3949 announces

Prefixes originated by AS3949 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
47
IPv6 prefixes
1
IPv4 addresses
15,100 (58 /24s)
RPKI valid
40 83%
RPKI invalid
0
RPKI not found
8
ROAs naming AS3949
675
With an IRR route object
48 100%

Who AS3949 is reached through

The AS just before AS3949 in the paths our looking glass collectors hold, for 48 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.