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AS12271

TWC-12271-NYC

Charter Communications Inc

Registry

Authoritative registration data

AS number
12271
Name
TWC-12271-NYC
Organisation
Charter Communications Inc
Country
—
RIR
ARIN
Registered
Source:asn:rdap retrieved

IPv4 prefixes

111

IPv6 prefixes

8

Total announced

119

Announced prefixes

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

Prefixes announced by AS12271
74.72.0.0/15 IPv4 /15 not checked
98.14.0.0/15 IPv4 /15 not checked
149.89.0.0/16 IPv4 /16 not checked
172.254.0.0/16 IPv4 /16 not checked
184.152.0.0/16 IPv4 /16 not checked
24.193.0.0/16 IPv4 /16 not checked
24.90.0.0/16 IPv4 /16 not checked
47.230.0.0/16 IPv4 /16 not checked
50.74.0.0/16 IPv4 /16 not checked
66.108.0.0/16 IPv4 /16 not checked
67.243.0.0/16 IPv4 /16 not checked
67.245.0.0/16 IPv4 /16 not checked
67.250.0.0/16 IPv4 /16 not checked
67.254.0.0/16 IPv4 /16 not checked
68.173.0.0/16 IPv4 /16 not checked
68.174.0.0/16 IPv4 /16 not checked
69.206.0.0/16 IPv4 /16 not checked
72.229.0.0/16 IPv4 /16 not checked
74.64.0.0/16 IPv4 /16 not checked
74.66.0.0/16 IPv4 /16 not checked
74.68.0.0/16 IPv4 /16 not checked
74.71.0.0/16 IPv4 /16 not checked
98.12.0.0/16 IPv4 /16 not checked
142.105.0.0/17 IPv4 /17 not checked
142.255.0.0/17 IPv4 /17 not checked
158.222.128.0/17 IPv4 /17 not checked
184.153.0.0/17 IPv4 /17 not checked
184.74.128.0/17 IPv4 /17 not checked
184.75.0.0/17 IPv4 /17 not checked
24.103.0.0/17 IPv4 /17 not checked
24.161.0.0/17 IPv4 /17 not checked
24.168.0.0/17 IPv4 /17 not checked
66.65.0.0/17 IPv4 /17 not checked
68.175.0.0/17 IPv4 /17 not checked
69.201.128.0/17 IPv4 /17 not checked
69.202.128.0/17 IPv4 /17 not checked
69.203.0.0/17 IPv4 /17 not checked
72.225.128.0/17 IPv4 /17 not checked
72.226.0.0/17 IPv4 /17 not checked
72.227.128.0/17 IPv4 /17 not checked
72.231.0.0/17 IPv4 /17 not checked
98.0.128.0/17 IPv4 /17 not checked
98.13.128.0/17 IPv4 /17 not checked
98.7.0.0/17 IPv4 /17 not checked
108.176.0.0/18 IPv4 /18 not checked
108.176.128.0/18 IPv4 /18 not checked
208.105.0.0/18 IPv4 /18 not checked
23.246.64.0/18 IPv4 /18 not checked
24.102.64.0/18 IPv4 /18 not checked
24.104.192.0/18 IPv4 /18 not checked
24.164.128.0/18 IPv4 /18 not checked
50.75.192.0/18 IPv4 /18 not checked
66.65.128.0/18 IPv4 /18 not checked
67.244.64.0/18 IPv4 /18 not checked
67.247.0.0/18 IPv4 /18 not checked
67.251.192.0/18 IPv4 /18 not checked
69.193.128.0/18 IPv4 /18 not checked
69.203.192.0/18 IPv4 /18 not checked
72.225.64.0/18 IPv4 /18 not checked
72.43.128.0/18 IPv4 /18 not checked
74.65.192.0/18 IPv4 /18 not checked
98.7.192.0/18 IPv4 /18 not checked
150.221.96.0/19 IPv4 /19 not checked
168.148.128.0/19 IPv4 /19 not checked
192.61.128.0/19 IPv4 /19 not checked
198.179.64.0/19 IPv4 /19 not checked
204.210.128.0/19 IPv4 /19 not checked
208.105.64.0/19 IPv4 /19 not checked
208.125.0.0/19 IPv4 /19 not checked
24.103.224.0/19 IPv4 /19 not checked
24.105.128.0/19 IPv4 /19 not checked
24.136.96.0/19 IPv4 /19 not checked
24.168.128.0/19 IPv4 /19 not checked
24.213.160.0/19 IPv4 /19 not checked
24.29.128.0/19 IPv4 /19 not checked
24.29.96.0/19 IPv4 /19 not checked
24.39.128.0/19 IPv4 /19 not checked
67.244.0.0/19 IPv4 /19 not checked
67.247.96.0/19 IPv4 /19 not checked
67.251.128.0/19 IPv4 /19 not checked
68.172.224.0/19 IPv4 /19 not checked
69.193.192.0/19 IPv4 /19 not checked
69.193.224.0/19 IPv4 /19 not checked
69.200.224.0/19 IPv4 /19 not checked
69.200.64.0/19 IPv4 /19 not checked
69.203.128.0/19 IPv4 /19 not checked
69.204.224.0/19 IPv4 /19 not checked
72.43.96.0/19 IPv4 /19 not checked
24.30.224.0/20 IPv4 /20 not checked
24.39.112.0/20 IPv4 /20 not checked
68.172.208.0/20 IPv4 /20 not checked
24.39.104.0/21 IPv4 /21 not checked
24.97.200.0/21 IPv4 /21 not checked
65.86.104.0/21 IPv4 /21 not checked
66.93.136.0/21 IPv4 /21 not checked
68.165.184.0/21 IPv4 /21 not checked
69.200.240.0/21 IPv4 /21 not checked
74.0.136.0/21 IPv4 /21 not checked
192.131.40.0/22 IPv4 /22 not checked
24.97.124.0/22 IPv4 /22 not checked
207.251.238.0/23 IPv4 /23 not checked
24.97.184.0/23 IPv4 /23 not checked
76.58.52.0/23 IPv4 /23 not checked
150.224.177.0/24 IPv4 /24 not checked
198.151.199.0/24 IPv4 /24 not checked
198.151.200.0/24 IPv4 /24 not checked
198.151.201.0/24 IPv4 /24 not checked
198.151.202.0/24 IPv4 /24 not checked
198.151.203.0/24 IPv4 /24 not checked
24.97.123.0/24 IPv4 /24 not checked
66.110.97.0/24 IPv4 /24 not checked
2603:7000::/28 IPv6 /28 RPKI valid
2600:6000::/32 IPv6 /32 RPKI valid
2603:90be::/32 IPv6 /32 not checked
2604:2000::/32 IPv6 /32 RPKI valid
2602:107:6300::/40 IPv6 /40 not checked
2602:107:e400::/40 IPv6 /40 not checked
2600:6c7f:9360::/44 IPv6 /44 RPKI valid
2602:107:6310::/44 IPv6 /44 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 AS12271 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

2 networks seen before AS12271 in AS paths

Observed upstreams
Families
AS7843 TWC-7843-BB 10,327 64,932
v4 v6
AS6453 AS6453 80 109
v4

No rows match “”.

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Observed downstreams

51 networks seen after AS12271 in AS paths

Observed downstreams
Families
AS36100 MTC-BROADBAND 259 2,673
v4
AS22252 AS22252 158 1,514
v4
AS18564 SJU149068 264 1,387
v4
AS393753 AS393753 271 1,077
v4
AS19796 SHUBERT 281 1,075
v4
AS54226 SUNY-OPTOMETRY 265 1,053
v4
AS18694 SDWARREN 147 800
v4
AS395095 GARNET-HEALTH 274 718
v4
AS54113 FASTLY 332 702
v4 v6
AS14478 RECURSE-CENTER 334 701
v4 v6
AS22303 NEWPALTZEDU 336 700
v4 v6
AS20252 JSIWMC 120 434
v4
AS6292 MTAPD-GB 190 371
v4 v6
AS397595 MTAPD-LIC 188 369
v4 v6
AS46765 ASN1 273 359
v4
AS402355 VISENTRY-NET 273 359
v4
AS32730 NAHQPU 272 359
v4
AS402494 BARTLETTDAIRY-JFK-SDWAN 272 359
v4
AS16770 ASTGEN 271 359
v4
AS55123 37589 271 359
v4
AS27185 DHS-INTERNET 270 359
v4
AS401827 UNITED NATIONS FEDERAL CREDIT UNION 270 359
v4
AS25816 TOURO 269 357
v4
AS14465 HITN-AS-1 268 354
v4
AS23325 MCL-ASN 267 354
v4
AS19794 CEMENTWORKS 266 350
v4
AS393562 MOB-ASN 247 341
v6
AS395060 MACMILLAN-PUBLISHERS 258 335
v4
AS40170 MTR0-01 152 205
v4
AS62566 STARBUCKS 150 205
v4
AS393569 9-11-MEMORIAL 150 205
v4
AS400392 EMPIRE-1 145 200
v4
AS25669 TOWERPRODUCTS 160 196
v4
AS25891 SVA-ANS 141 195
v4
AS33010 INTERCHURCH 142 193
v4
AS397352 142 193
v4
AS13975 NYCPM 141 192
v4
AS33428 NHS-39AS 138 191
v4
AS26738 DEERFIELD 135 188
v4
AS395359 ITH-AS-1 149 184
v4
AS14460 HORIZON 130 183
v4
AS23010 FFHSJ 130 183
v4
AS53693 RAA-NYC-NET 134 180
v4
AS5091 STRIPE 145 179
v4
AS30012 ASN-UNIVERSAL-MUSIC-GROUP-INC 145 179
v4
AS40362 CHAPIN-AS 114 157
v4
AS400508 JS-ASN-01 110 137
v4
AS23097 COHEN-STEERS 94 115
v4
AS54201 WEWORK-MANAGEMENT-LLC 33 106
v6
AS30339 DGLAW 15 20
v4
AS39943 ST-FRANCIS-COLLEGE 8 12
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.