Check-Host.cc

Autonomous System

AS21951

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

Announced IPs
2,048
IPv4
IPv4 Prefixes
2
IPv6 Prefixes
1
Hosted Domains
12
resolve into this AS
Peers
Customers

AS Profile

AS Name
AS Type
RIR
ARIN
Country
US
Allocated
2001-07-17

RPKI Validity

Total ROAs
Valid Prefixes
NotFound
3
Announced (BGP)
3
RPKI Coverage
0%

Geographic Footprint

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

US
14

Top Open Ports

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

Port Open IPs
80 4
443 2
6000 1
6667 1
7778 1
8090 1
40000 1
8649 1
8765 1
8800 1
8883 1
50000 1
10911 1
9001 1
17000 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.