Check-Host.cc

Autonomous System

AS1921 · RcodeZero Anycast DNS

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

Announced IPs
2,816
IPv4
IPv4 Prefixes
11
IPv6 Prefixes
11
Hosted Domains
9
resolve into this AS
Peers
644
Customers
3

AS Profile

AS Name
RcodeZero Anycast DNS
AS Type
Content
Scope
Global
Traffic
1-5Gbps
IRR AS-SET
AS-RCODEZERO
RIR
RIPE NCC
Country
AT
Allocated
1993-09-01

RPKI Validity

Total ROAs
252
Valid Prefixes
20
NotFound
2
Announced (BGP)
22
RPKI Coverage
90.9%

Geographic Footprint

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

DE
135
AT
32
SE
10

Top Open Ports

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

Port Open IPs
53 44