ResearchRouting table, RPKI, IRR & looking glass

AS212465 Comcast International Holdings UK Limited

AS212465 (COMCAST-UK-2) is registered to Comcast International Holdings UK Limited in GB. It originates 20 prefixes in the global routing table.

12
IPv4 prefixes
8
IPv6 prefixes
41,984
IPv4 addresses
80%
RPKI valid

Who holds AS212465

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

AS number
AS212465
Handle
COMCAST-UK-2
Organization
Comcast International Holdings UK Limited
Country
GB
ASPA
None published

What AS212465 announces

Prefixes originated by AS212465 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
12
IPv6 prefixes
8
IPv4 addresses
41,984 (164 /24s)
RPKI valid
16 80%
RPKI invalid
0
RPKI not found
4
ROAs naming AS212465
28
With an IRR route object
11 55%

Who AS212465 is reached through

The AS just before AS212465 in the paths our looking glass collectors hold, for 20 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
RIPECOMCAST-UK-2RIPE-NCC-END-MNT, UK-COMCAST-1-MNT

Route objects with origin AS212465: RADB 13 · RIPE 4

as-sets that list AS212465 (6)