Check-Host.cc

Autonomous System

AS21818

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

Announced IPs
3,072
IPv4
IPv4 Prefixes
2
IPv6 Prefixes
1
Hosted Domains
7
resolve into this AS
Peers
Customers

AS Profile

AS Name
AS Type
RIR
ARIN
Country
US
Allocated
2001-06-26

RPKI Validity

Total ROAs
10
Valid Prefixes
2
NotFound
1
Announced (BGP)
3
RPKI Coverage
66.7%

Geographic Footprint

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

US
36

Top Open Ports

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

Port Open IPs
5101 6
8443 4
161 3
443 3
80 2
53 1
1194 1
1723 1
4443 1

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.