ResearchRouting table, RPKI, IRR & looking glass

AS22644 Thomas Jefferson University Hospitals, Inc.

AS22644 (TJUH) is registered to Thomas Jefferson University Hospitals, Inc. in US. It originates 22 prefixes in the global routing table.

5
IPv4 prefixes
17
IPv6 prefixes
61,440
IPv4 addresses
100%
RPKI valid

Who holds AS22644

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

AS number
AS22644
Handle
TJUH
Organization
Thomas Jefferson University Hospitals, Inc.
Country
US
ASPA
None published

What AS22644 announces

Prefixes originated by AS22644 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
5
IPv6 prefixes
17
IPv4 addresses
61,440 (240 /24s)
RPKI valid
22 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS22644
2
With an IRR route object
5 22%

Who AS22644 is reached through

The AS just before AS22644 in the paths our looking glass collectors hold, for 22 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
ARINASN-TJUHMNT-TJUH-1

Route objects with origin AS22644: RADB 6 · ARIN 4

as-sets that list AS22644 (7)