Home ASN LookupAS15118

AS15118 SIUMED - Southern Illinois University - School of Medicine

🇺🇸

ARINassignedASPA Published

Announced Prefixes (BGP)

3total

3 IPv40 IPv6

IPv4 Addresses

Allocated (RIR)0

Announced (BGP)6,144

IPv6 Addresses

Allocated (RIR)7.9×10²⁸

Announced (BGP)0

Prefix Limit (IPv4)

Prefix Limit (IPv6)

Country

🇺🇸 US

RIR

ARIN

Status

assigned

Allocated

2000-03-22

Announced Prefixes

(BGP)3

Prefix	RPKI	IRR	Last Seen
131.230.224.0/20	Valid	ARINOther IRR	2026-10-11
131.230.228.0/22	Valid	ARINOther IRR	2026-10-11
131.230.236.0/22	Valid	ARINOther IRR	2026-10-11

Allocated Prefixes

(RIR)1

Prefix	Country	RIR	Status
2604:360::/32	🇺🇸 US	ARIN	allocated

All 3 announced prefixes of AS15118 →

Upstream Providers(3)

ASN	Name
AS6325	🇺🇸ILLINOIS-CENTURY - Illinois Century Network
AS15119	🇺🇸SOUTHERN-ILLINOIS-UNIVERSITY - Southern Illinois University Carbondale
AS62943	🇺🇸AS62943-BLUEBIRD-NETWORK - Missouri Network Alliance, LLC

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS15118 hands its own prefixes to: transit providers, or peers at an exchange.

AS62943Missouri Network Alliance2
AS6325Illinois Century Network1

ASPA

Published3 upstreams, 0 downstreams

Authorized Upstream Providers

AS6325 AS15119 AS62943

Expires 2026-10-12

View full ASPA details →

External Links

ARIN Whois RIPEstat

Learn more

What is an ASN?Autonomous systems, ASN ranges and how they are assigned
RPKI and route origin validationWhat the RPKI badges on the prefix list mean
How to run an ASPA checkVerify the upstream providers listed above
IPv4 transfers in the ARIN regionMonthly volume and the latest registry transfers
ASN data in AI agents and SIEMMCP server and API integrations

API

Open

GEThttps://api.ipctl.io/v1/asn/15118

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/15118" | jq