ResearchRouting table, RPKI, IRR & looking glass

AS2576 U. S. Department of Transportation

AS2576 (DOT-AS) is registered to U. S. Department of Transportation in US. It originates 53 prefixes in the global routing table.

20
IPv4 prefixes
33
IPv6 prefixes
268,800
IPv4 addresses
0%
RPKI valid
Registration

Who holds AS2576

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

AS number
AS2576
Handle
DOT-AS
Organization
U. S. Department of Transportation
Country
US
ASPA
None published
Routing

What AS2576 announces

Prefixes originated by AS2576 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
20
IPv6 prefixes
33
IPv4 addresses
268,800 (1,050 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
53
ROAs naming AS2576
1
With an IRR route object
13 24%
Prefixes

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (20)
152.119.0.0/16152.120.0.0/16152.122.0.0/16169.135.0.0/16199.79.176.0/24199.79.177.0/24199.79.178.0/24199.79.179.0/24199.79.180.0/24204.68.194.0/23204.68.194.0/24204.68.195.0/24204.68.196.0/23204.68.202.0/24204.69.250.0/23204.69.252.0/24204.86.184.0/21204.86.192.0/23204.152.44.0/23204.238.19.0/24
IPv6 (33)
2001:19e8::/482001:19e8:1::/482001:19e8:2::/482001:19e8:a::/482001:19e8:d::/482001:19e8:e::/482001:19e8:d1::/482001:19e8:d2::/482001:19e8:d3::/482001:19e8:d4::/482001:19e8:d5::/482001:19e8:d6::/482001:19e8:d7::/482001:19e8:d8::/482001:19e8:d9::/482001:19e8:da::/482001:19e8:f0::/482001:19e8:f1::/482001:19e8:f2::/482001:19e8:f3::/482001:19e8:f4::/482001:19e8:f5::/482001:19e8:f6::/482001:19e8:f7::/482001:19e8:f8::/482001:19e8:f9::/482001:19e8:fa::/482001:19e8:fb::/482001:19e8:220::/442001:19e8:230::/442001:19e8:260::/442001:19e8:1002::/482001:19e8:1003::/48

RPKI valid   RPKI invalid   no ROA covers it

Neighbors

Who AS2576 is reached through

The AS just before AS2576 in the paths our looking glass collectors hold, for 53 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS13979 ATT-IPFR 53
IRR

Routing registry objects

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

Route objects with origin AS2576: LEVEL3 16

as-sets that list AS2576 (1)
AS-GBLX
Tools

Check AS2576 live

ASN lookup and WHOISRPKI validatorASPA validatorIRR lookup