ResearchRouting table, RPKI, IRR & looking glass

AS11623 CT Communications Network

AS11623 (CTCN) is registered to CT Communications Network in US. It originates 4 prefixes in the global routing table.

3
IPv4 prefixes
1
IPv6 prefixes
8,192
IPv4 addresses
25%
RPKI valid

Who holds AS11623

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

AS number
AS11623
Handle
CTCN
Organization
CT Communications Network
Country
US
ASPA
None published

What AS11623 announces

Prefixes originated by AS11623 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
3
IPv6 prefixes
1
IPv4 addresses
8,192 (32 /24s)
RPKI valid
1 25%
RPKI invalid
0
RPKI not found
3
ROAs naming AS11623
1
With an IRR route object
3 75%

Announced prefixes

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

IPv4 (3)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS11623 is reached through

The AS just before AS11623 in the paths our looking glass collectors hold, for 4 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
RADBRoadRunnerMAINT-RR

Route objects with origin AS11623: RADB 5 · ARIN 1

as-sets that list AS11623 (8)