ResearchRouting table, RPKI, IRR & looking glass

AS33659 Comcast Cable Communications, LLC

AS33659 (CMCS) is registered to Comcast Cable Communications, LLC in US. It originates 171 prefixes in the global routing table.

IPv4 prefixes

124

IPv6 prefixes

31,232

IPv4 addresses

92%

RPKI valid

Registration

Who holds AS33659

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

AS number

AS33659

Handle

CMCS

Organization

Comcast Cable Communications, LLC

Country

ASPA

None published

Routing

What AS33659 announces

Prefixes originated by AS33659 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes

IPv6 prefixes

124

IPv4 addresses

31,232 (122 /24s)

RPKI valid

159 92%

RPKI invalid

RPKI not found

ROAs naming AS33659

3,322

With an IRR route object

13 7%

Prefixes

Announced prefixes

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

IPv4 (47)

IPv6 (124)

2001:559:45::/48 2001:559:47::/48 2001:559:126::/48 2001:559:180::/48 2001:559:189::/48 2001:559:18a::/48 2001:559:1e0::/48 2001:559:1e8::/48 2001:559:1f9::/48 2001:559:1fd::/48 2001:559:200::/48 2001:559:208::/48 2001:559:20c::/48 2001:559:24e::/48 2001:559:260::/48 2001:559:28f::/48 2001:559:2ce::/48 2001:559:2d3::/48 2001:559:359::/48 2001:559:3a9::/48 2001:559:40b::/48 2001:559:40e::/48 2001:559:410::/48 2001:559:411::/48 2001:559:44a::/48 2001:559:452::/48 2001:559:453::/48 2001:559:45d::/48 2001:559:466::/48 2001:559:4a1::/48 2001:559:505::/48 2001:559:534::/48 2001:559:551::/48 2001:559:5fd::/48 2001:559:705::/48 2001:559:70c::/48 2001:559:72a::/48 2001:559:72d::/48 2001:559:753::/48 2001:559:75c::/48 2001:559:76f::/48 2001:559:785::/48 2001:559:7ab::/48 2001:559:7dc::/48 2001:559:80a6::/48 2001:559:80e3::/48 2001:559:80f2::/48 2001:559:8100::/48 2001:559:8110::/48 2001:559:8170::/48 2001:559:8192::/48 2001:559:831a::/48 2001:559:833b::/48 2001:559:833d::/48 2001:559:8353::/48 2001:559:8381::/48 2001:559:8449::/48 2001:559:8469::/48 2001:559:8471::/48 2001:559:84ae::/48 2001:559:84bf::/48 2001:559:84c2::/48 2001:559:84c4::/48 2001:559:84ce::/48 2001:559:84df::/48 2001:559:84f1::/48 2001:559:84f3::/48 2001:559:84f4::/48 2001:559:84fe::/48 2001:559:84ff::/48 2001:559:8506::/48 2001:559:857c::/48 2001:559:85a0::/48 2001:559:85a5::/48 2001:559:85a6::/48 2001:559:85b2::/48 2001:559:85ba::/48 2001:559:85e7::/48 2001:559:8634::/48 2001:559:8659::/48 2001:559:8662::/48 2001:559:8691::/48 2001:559:86de::/48 2001:559:86df::/48 2001:559:86e0::/48 2001:559:86e2::/48 2001:559:86f1::/48 2001:559:870a::/48 2001:559:8717::/48 2001:559:87b7::/48 2001:559:87d2::/48 2001:559:c031::/48 2001:559:c0a7::/48 2001:559:c0e0::/48 2001:559:c100::/48 2001:559:c118::/48 2001:559:c121::/48 2001:559:c166::/48 2001:559:c210::/48 2001:559:c262::/48 2001:559:c2a6::/48 2001:559:c2d4::/48 2001:559:c30b::/48 2001:559:c316::/48 2001:559:c32c::/48 2001:559:c36a::/48 2001:559:c392::/48 2001:559:c393::/48 2001:559:c3b1::/48 2001:559:c3da::/48 2001:559:c3f1::/48 2001:559:c3fb::/48 2001:559:c3fe::/48 2001:559:c402::/48 2001:559:c407::/48 2001:559:c408::/48 2001:559:c459::/48 2001:559:c48e::/48 2001:559:c4bc::/48 2001:559:c4d6::/48

Show 4 more

2001:559:c4dc::/48 2001:559:c4f5::/48 2001:559:c503::/48 2001:559:c50a::/48

RPKI valid RPKI invalid no ROA covers it

Neighbors

Who AS33659 is reached through

The AS just before AS33659 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

AS7922 COMCAST-7922 60 AS3356 LEVEL3 19

IRR

Routing registry objects

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

Source	as-name	Maintained by
LEVEL3	N	MNT-CMCS

Route objects with origin AS33659: ARIN 32 · RIPE 8 · RADB 2

as-sets that list AS33659 (3)

AS-COMCAST-IBONE AS-LUMEN-CUSTOMERS-ASNS AS7922:AS-COMCAST-RANS

Tools

Check AS33659 live

ASN lookup and WHOIS RPKI validator ASPA validator IRR lookup