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AS33668

CMCS

Comcast Cable Communications, LLC

Registry

Authoritative registration data

AS number
33668
Name
CMCS
Organisation
Comcast Cable Communications, LLC
Country
—
RIR
ARIN
Registered
Source:asn:rdap retrieved

IPv4 prefixes

26

IPv6 prefixes

69

Total announced

95

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS33668
107.0.213.0/24 IPv4 /24 not checked
157.240.130.0/24 IPv4 /24 not checked
157.240.135.0/24 IPv4 /24 not checked
192.138.205.0/24 IPv4 /24 not checked
192.88.105.0/24 IPv4 /24 not checked
198.180.251.0/24 IPv4 /24 not checked
206.201.156.0/24 IPv4 /24 not checked
206.201.158.0/24 IPv4 /24 not checked
50.202.125.0/24 IPv4 /24 not checked
50.203.250.0/24 IPv4 /24 not checked
50.204.170.0/24 IPv4 /24 not checked
50.206.127.0/24 IPv4 /24 not checked
50.207.92.0/24 IPv4 /24 not checked
50.217.249.0/24 IPv4 /24 not checked
50.220.170.0/24 IPv4 /24 not checked
50.221.158.0/24 IPv4 /24 not checked
50.223.155.0/24 IPv4 /24 not checked
50.226.70.0/24 IPv4 /24 not checked
50.227.241.0/24 IPv4 /24 not checked
50.228.137.0/24 IPv4 /24 not checked
50.229.7.0/24 IPv4 /24 not checked
50.232.15.0/24 IPv4 /24 not checked
50.233.114.0/24 IPv4 /24 not checked
50.233.62.0/24 IPv4 /24 not checked
50.238.250.0/24 IPv4 /24 not checked
50.239.133.0/24 IPv4 /24 not checked
2001:559:10d::/48 IPv6 /48 not checked
2001:559:10e::/48 IPv6 /48 not checked
2001:559:15c::/48 IPv6 /48 not checked
2001:559:1ef::/48 IPv6 /48 not checked
2001:559:248::/48 IPv6 /48 not checked
2001:559:254::/48 IPv6 /48 not checked
2001:559:25c::/48 IPv6 /48 not checked
2001:559:25d::/48 IPv6 /48 not checked
2001:559:261::/48 IPv6 /48 not checked
2001:559:270::/48 IPv6 /48 not checked
2001:559:318::/48 IPv6 /48 not checked
2001:559:330::/48 IPv6 /48 not checked
2001:559:33d::/48 IPv6 /48 not checked
2001:559:361::/48 IPv6 /48 not checked
2001:559:365::/48 IPv6 /48 not checked
2001:559:391::/48 IPv6 /48 not checked
2001:559:3ce::/48 IPv6 /48 not checked
2001:559:3d9::/48 IPv6 /48 not checked
2001:559:3fe::/48 IPv6 /48 not checked
2001:559:44::/48 IPv6 /48 not checked
2001:559:5a4::/48 IPv6 /48 not checked
2001:559:5c8::/48 IPv6 /48 not checked
2001:559:704::/48 IPv6 /48 not checked
2001:559:7e0::/48 IPv6 /48 not checked
2001:559:7e7::/48 IPv6 /48 not checked
2001:559:8093::/48 IPv6 /48 not checked
2001:559:809e::/48 IPv6 /48 not checked
2001:559:80ac::/48 IPv6 /48 not checked
2001:559:815e::/48 IPv6 /48 not checked
2001:559:817a::/48 IPv6 /48 not checked
2001:559:817b::/48 IPv6 /48 not checked
2001:559:82d7::/48 IPv6 /48 not checked
2001:559:82f7::/48 IPv6 /48 not checked
2001:559:835e::/48 IPv6 /48 not checked
2001:559:83e5::/48 IPv6 /48 RPKI valid
2001:559:8441::/48 IPv6 /48 not checked
2001:559:847f::/48 IPv6 /48 not checked
2001:559:84c0::/48 IPv6 /48 not checked
2001:559:84db::/48 IPv6 /48 not checked
2001:559:8567::/48 IPv6 /48 not checked
2001:559:8577::/48 IPv6 /48 not checked
2001:559:85fa::/48 IPv6 /48 not checked
2001:559:85fb::/48 IPv6 /48 not checked
2001:559:860e::/48 IPv6 /48 not checked
2001:559:8709::/48 IPv6 /48 not checked
2001:559:8730::/48 IPv6 /48 not checked
2001:559:8752::/48 IPv6 /48 not checked
2001:559:8774::/48 IPv6 /48 not checked
2001:559:c0c8::/48 IPv6 /48 not checked
2001:559:c0e6::/48 IPv6 /48 not checked
2001:559:c150::/48 IPv6 /48 not checked
2001:559:c1a3::/48 IPv6 /48 not checked
2001:559:c1b4::/48 IPv6 /48 not checked
2001:559:c1b6::/48 IPv6 /48 not checked
2001:559:c1c0::/48 IPv6 /48 not checked
2001:559:c1cd::/48 IPv6 /48 not checked
2001:559:c1ce::/48 IPv6 /48 not checked
2001:559:c345::/48 IPv6 /48 not checked
2001:559:c3aa::/48 IPv6 /48 not checked
2001:559:c3c5::/48 IPv6 /48 not checked
2001:559:c3e2::/48 IPv6 /48 not checked
2001:559:c3eb::/48 IPv6 /48 not checked
2001:559:c45a::/48 IPv6 /48 not checked
2001:559:c48d::/48 IPv6 /48 not checked
2001:559:c500::/48 IPv6 /48 not checked
2001:559:c539::/48 IPv6 /48 not checked
2001:559:c568::/48 IPv6 /48 not checked
2001:559:f2::/48 IPv6 /48 not checked
2602:810:20c3::/48 IPv6 /48 not checked

No rows match “”.

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Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

No Internet Exchange memberships found

The exchange directory has no current membership records for this AS.

Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS33668 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

2 networks seen before AS33668 in AS paths

Observed upstreams
Families
AS7922 COMCAST-7922 6,712 54,433
v4 v6
AS3356 LEVEL3 3,168 13,360
v4 v6

No rows match “”.

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Observed downstreams

69 networks seen after AS33668 in AS paths

Observed downstreams
Families
AS26463 MISD-NET 270 9,369
v4
AS62658 WYAN-AS 379 4,606
v4
AS33372 SPARTAN-AS 254 3,960
v4
AS394446 NCATS 112 2,457
v4
AS393256 DTE-ASN 339 1,332
v4 v6
AS10351 ENERT 254 1,320
v4
AS19880 REALCOMPII 124 948
v4
AS53352 HFHS-ASN 291 788
v4
AS11115 ONLINE-TECH-LLC 265 705
v4 v6
AS397367 CRANBROOK-01 255 661
v4
AS14257 EZ-NET 254 660
v4
AS13325 STOMI 217 629
v4
AS396224 NSF-INTERNATIONAL 386 585
v4
AS393499 ONLINE-TECH-LLC3 136 564
v4
AS4208 THE-ISERV-COMPANY 257 412
v4
AS1438 PIONEER-STATE-MUTUAL-INSURANCE 228 402
v4
AS32477 ONLINE-TECH-LLC2 241 393
v4 v6
AS36040 YOUTUBE 258 330
v4
AS19277 IMAGEMASTER-01 255 330
v4
AS397871 COD-PUBLIC-148 255 330
v4
AS17003 ZOETIS-INC 254 330
v4
AS402050 254 330
v4
AS35928 BECKMAN-COULTER-ASN 253 330
v4
AS46674 PUB-ASN 253 330
v4
AS401285 MICHIGANVIRTUAL 253 330
v4
AS39987 KISD-ORG 84 323
v4
AS23032 FCS-INDUSTRIES-01 249 320
v4
AS53775 SEKISUI KYDEX 249 320
v4
AS14842 BAUD-AS01 224 295
v4
AS26510 FTCH-HQ-ASN 223 294
v4
AS394890 DEW-AS 210 267
v4
AS394729 NPIASN 203 259
v4
AS393471 FOS-HOSTING 104 256
v4
AS32285 HFCC 181 236
v4
AS395551 CARHA-ASN 114 142
v4
AS395234 ANESTHESIALLC 113 141
v4
AS397969 CL-ASN-01 102 137
v4
AS400315 COLD-HEADING 104 128
v4
AS395779 ARMINTL 93 124
v4
AS54267 LAKE-TRUST-CREDIT-UNION-MULTIHOME-AS-0001 99 122
v4
AS393673 JDL-AS-1 97 119
v4
AS399293 HOLASN 83 111
v4
AS393663 ACUMENT 34 88
v4
AS12088 NABANCARD 74 85
v4
AS21970 PCESYSTEMS 35 74
v4
AS396332 S1-FLINT-DC 53 69
v4
AS19031 WESCO 13 46
v4
AS395614 COL 40 44
v4
AS393376 DYNAMICEDGE 34 41
v4
AS397288 MCREY 10 39
v4
AS19936 GORDONFOODS 33 36
v4
AS36127 MCPS 21 31
v4 v6
AS16758 RICOH USA 12 30
v4
AS31923 THE-AUTO-CLUB-GROUP-ASN-1 11 28
v4
AS40262 PANTONE-AS 10 26
v4
AS14010 JACKHENRY 14 16
v4
AS13335 CLOUDFLARENET 6 16
v4 v6
AS33393 MMMI 13 15
v4
AS13683 AUTO-WARES-ASN 11 14
v4
AS15099 MONROE-COUNTY-MI-PUBLIC-ASN 12 13
v4
AS394573 GSFCS 7 10
v4
AS398856 WPP-DETROIT 8 9
v4
AS33145 ASN-BETHANYBCS 7 8
v4
AS62728 VGPE-ASN1 3 8
v4
AS54946 MH105-METRO-HEALTH-HOSPITAL 6 7
v4
AS54840 UWM 3 6
v4
AS63102 MESSA-AS 3 4
v4
AS62611 CEC-AS-NB-4080 3 3
v4
AS394004 HURLEY-MEDICAL-ASN 3 3
v4

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual.