Check-Host.cc

Autonomous System

AS9 · Carnegie Mellon University

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Announced IPs
134k
IPv4
IPv4 Prefixes
IPv6 Prefixes
Hosted Domains
604
resolve into this AS
Peers
Customers

AS Profile

AS Name
Carnegie Mellon University
AS Type
Scope
Not Disclosed
RIR
ARIN
Country
US
Allocated
1984-04-17

RPKI Validity

Total ROAs
40
Valid Prefixes
NotFound
Announced (BGP)
RPKI Coverage

Geographic Footprint

Countries where this AS's scanned IPs are geolocated, by open-IP count.

US
270

Top Open Ports

Most common open ports across IPs in this AS (last 30 days).

Port Open IPs
22 41
80 41
443 28
111 20
25 17
110 13
995 8
79 8
13 7
21 7
8080 6
5000 6
993 5
7000 5
113 5

Upstreams

Tier-1 / transit-free network

CAIDA AS-Relationships sees no upstream transit provider for this ASN — either a tier-1 carrier, a settlement-free routing arrangement, or an ASN that peers privately. Tier-1s like AS174, AS3356, AS6939 also show empty here.