ResearchRouting table, RPKI, IRR & looking glass

AS31770 Ann & Robert H. Lurie Children's Hospital of Chicago

AS31770 (CMMC-I2) is registered to Ann & Robert H. Lurie Children's Hospital of Chicago in US. It originates 9 prefixes in the global routing table.

9
IPv4 prefixes
0
IPv6 prefixes
2,304
IPv4 addresses
0%
RPKI valid

Who holds AS31770

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

AS number
AS31770
Handle
CMMC-I2
Organization
Ann & Robert H. Lurie Children's Hospital of Chicago
Country
US
ASPA
None published

What AS31770 announces

Prefixes originated by AS31770 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
9
IPv6 prefixes
0
IPv4 addresses
2,304 (9 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
9
ROAs naming AS31770
0
With an IRR route object
7 77%

Announced prefixes

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

Who AS31770 is reached through

The AS just before AS31770 in the paths our looking glass collectors hold, for 9 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.

Sourceas-nameMaintained by
RADBSGAS-31770MAINT-AS1828

Route objects with origin AS31770: RADB 8

as-sets that list AS31770 (9)