asn.dev

Autonomous system

AS40856 SBL-ASN - Sarah Bush Lincoln Health Center

Unclassified ARIN

IPv4 addresses 256 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly US
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Sarah Bush Lincoln Health Center

United States of America · AI-generated

healthcare business hospital internal

The AS handle SBL-ASN is held by Sarah Bush Lincoln Health Center.

What it's used for

  • The address space carries internal hospital infrastructure, evidenced by the netname SBLHS and reverse DNS entries like sarah-bush-66-116-63-64.consolidated.net.
  • The network announces a single IPv4 prefix, 66.116.63.0/24, comprising 256 addresses, with 2 observed routing neighbours.
  • Traffic from this AS consists of internal communications and services for the 145-bed regional hospital located in Mattoon, Illinois.

Notable

  • The RDAP registrant SBLHS aligns with the AS holder name, confirming the space is directly managed by the health center.
  • The inventory consists of a single /24 block, indicating a small, self-contained corporate estate rather than a multi-site or transit network.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS5742Fidium58
AS30036Mediacom Communications Corp1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-02, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 256 addresses IPv6 0 prefixes

CountryNamePrefixes
USUnited States of America1

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS40856
Registry name
SBL-ASN
Registrant
Sarah Bush Lincoln Health Center
Abuse contact
iss@sblhs.org
Registered
2025-06-20
Last changed
2025-06-20
Allocation
assigned

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 1 with no ROA
ROAs
0 authorising AS40856
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS40856

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 448 networks and 1,851 prefixes, as published 2026-11-03. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check