ResearchRouting table, RPKI, IRR & looking glass

AS4354 UNIVERSAL HEALTH SERVICES

AS4354 (ERM-026) is registered to UNIVERSAL HEALTH SERVICES in US. It originates 1 prefix in the global routing table.

1
IPv4 prefixes
0
IPv6 prefixes
256
IPv4 addresses
100%
RPKI valid

Who holds AS4354

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

AS number
AS4354
Handle
ERM-026
Organization
UNIVERSAL HEALTH SERVICES
Country
US
ASPA
None published

What AS4354 announces

Prefixes originated by AS4354 in the routing table our collectors hold (kept current as routes change), 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
1 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS4354
1
With an IRR route object
1 100%

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 AS4354 buys transit from

Inferred from the AS paths in the RouteViews tables and our own collectors’ feeds, refreshed every 4 hours, most-seen first. 2 upstreams.

Who buys transit from AS4354

None seen: AS4354 does not appear to provide transit to anyone.

Routing registry objects

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

Sourceas-nameMaintained by
ALTDBENERNOCMAINT-TOWARDEX
RADBSOUTH_TEXAS_HEALTH_SYSTEM-UHSMAINT-RR

Route objects with origin AS4354: ALTDB 1 · ARIN 1 · LEVEL3 1 · RADB 1

as-sets that list AS4354 (4)