ResearchRouting table, RPKI, IRR & looking glass

AS19851 Doylestown Hospital

AS19851 (DOYLESTOWN-HOSPITAL) is registered to Doylestown Hospital in US. It originates 1 prefix in the global routing table.

1
IPv4 prefixes
0
IPv6 prefixes
256
IPv4 addresses
0%
RPKI valid

Who holds AS19851

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

AS number
AS19851
Handle
DOYLESTOWN-HOSPITAL
Organization
Doylestown Hospital
Country
US
ASPA
None published

What AS19851 announces

Prefixes originated by AS19851 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
1
IPv6 prefixes
0
IPv4 addresses
256 (1 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
1
ROAs naming AS19851
0
With an IRR route object
0 0%

Announced prefixes

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

IPv4 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS19851 is reached through

The AS just before AS19851 in the paths our looking glass collectors hold, for 1 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.