ResearchRouting table, RPKI, IRR & looking glass

AS21233 Atlas Business Group of Companies Ltd

AS21233 (ASN-C2INTERNET) is registered to Atlas Business Group of Companies Ltd in GB. It originates 7 prefixes in the global routing table.

6
IPv4 prefixes
1
IPv6 prefixes
1,536
IPv4 addresses
100%
RPKI valid

Who holds AS21233

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS21233
Handle
ASN-C2INTERNET
Organization
Atlas Business Group of Companies Ltd
Country
GB
ASPA
None published

What AS21233 announces

Prefixes originated by AS21233 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
6
IPv6 prefixes
1
IPv4 addresses
1,536 (6 /24s)
RPKI valid
7 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS21233
7
With an IRR route object
7 100%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

Who AS21233 is reached through

The AS just before AS21233 in the paths our looking glass collectors hold, for 7 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RIPEASN-C2INTERNETRIPE-NCC-END-MNT, AS13005-MNT

Route objects with origin AS21233: RIPE 7

as-sets that list AS21233 (8)