AS11874 — COLUMBUSREGIONALHOSPIAL
AS11874 announces 1 IPv4 prefixes covering 256 addresses and 0 IPv6 prefixes.
About this network
COLUMBUSREGIONALHOSPIAL (the misspelling is the registry's, not ours) is the enterprise AS of Columbus Regional Hospital, the not-for-profit regional medical centre at 2400 E. 17th Street in Columbus, Indiana. It is a single-prefix enterprise network, not a service provider.
What it's used for
Hospital-side enterprise connectivity: the AS exists so the hospital can hold its own address space and multi-home it rather than depend on a single ISP's routing. RIS sees exactly one prefix, 205.196.15.0/24 (256 addresses), and two observed neighbours. That neighbour count is the whole story of the network's role. A carrier peers with hundreds to thousands of ASes; a two-neighbour AS is an end site buying transit from a couple of upstreams for redundancy.
Notable
- The /24 is registered in ARIN to Columbus Regional Hospital itself, matching the AS holder exactly. Self-registered space announced by its own registrant is the cleanest possible signal that this is a real operator running its own network, with nothing leased, brokered, or resold.
- ARIN records the AS number as registered in 2012, so despite the low five-digit number this is reissued space, not an early-internet allocation. Nothing about this network is a relic; it is a modern hospital IT department that happened to draw a recycled ASN.
Interesting
Most hospitals of this size never run BGP at all. One that does is usually protecting a specific externally-reachable dependency: a patient portal, a payer link, or clinician remote access that cannot tolerate an ISP outage.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 205.196.15.0/24
Upstream networks
Adjacent networks
Routing security
- RPKI: 0 valid, 0 invalid and 1 not-found announcements; 0 ROAs.
- ASPA: none published.
- IRR: 100% of announcements registered; 3 route objects.
- Listed in as-sets: AS-11874, AS-19009-ASSOCIATED, AS-HURRICANE, AS-TRANSROUTE-SPEC, AS11550:AS-CUSTOMERS, AS7332:AS-LIGHTBOUND-CUST.
awaiting query
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