ResearchRouting table, RPKI, IRR & looking glass

AS11351 Charter Communications Inc

AS11351 (TWC-11351-NORTHEAST) is registered to Charter Communications Inc in US. It originates 143 prefixes in the global routing table.

130
IPv4 prefixes
13
IPv6 prefixes
4,389,888
IPv4 addresses
86%
RPKI valid

Who holds AS11351

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

AS number
AS11351
Handle
TWC-11351-NORTHEAST
Organization
Charter Communications Inc
Country
US
ASPA
None published

What AS11351 announces

Prefixes originated by AS11351 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
130
IPv6 prefixes
13
IPv4 addresses
4,389,888 (17,148 /24s)
RPKI valid
124 86%
RPKI invalid
2
RPKI not found
17
ROAs naming AS11351
192
With an IRR route object
125 87%

Announced prefixes

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

IPv4 (130)
24.24.0.0/1824.25.128.0/1824.29.32.0/1924.29.64.0/1924.30.240.0/2024.31.128.0/1924.39.0.0/1824.39.64.0/1924.39.96.0/2124.39.160.0/1924.39.192.0/1824.58.0.0/1524.92.32.0/1924.92.224.0/1924.93.0.0/1924.93.128.0/1924.94.32.0/1924.97.0.0/1624.103.128.0/1824.103.192.0/1924.105.160.0/1924.169.0.0/1724.198.0.0/1624.213.128.0/1924.213.184.0/2124.213.192.0/1845.46.0.0/1547.231.32.0/1947.231.96.0/2050.75.0.0/1750.75.128.0/1864.30.240.0/2065.185.244.0/2466.24.0.0/1666.66.0.0/1567.240.0.0/1567.242.0.0/1667.244.32.0/1967.244.128.0/1767.246.0.0/1667.247.64.0/1967.247.128.0/1767.248.0.0/1567.251.0.0/1767.252.0.0/1567.255.0.0/1668.172.0.0/1768.172.128.0/1868.172.192.0/2068.175.128.0/1769.193.0.0/1769.200.0.0/1869.200.96.0/1969.201.0.0/1769.204.0.0/1769.204.128.0/1869.204.192.0/1969.205.192.0/2269.207.0.0/1671.65.32.0/2371.65.34.0/2371.65.36.0/2272.43.0.0/1872.43.64.0/1972.43.192.0/1872.45.128.0/1772.224.0.0/1672.225.0.0/1872.226.128.0/1772.227.0.0/1772.228.0.0/1672.230.0.0/1672.231.128.0/1774.65.0.0/1774.65.128.0/1874.67.0.0/1674.69.0.0/1674.70.0.0/1674.74.64.0/1874.74.128.0/1774.75.0.0/1674.76.0.0/1476.37.0.0/1676.38.128.0/1776.58.20.0/2376.58.22.0/2376.178.192.0/1876.179.0.0/1676.180.0.0/1698.0.0.0/1798.1.0.0/1698.2.0.0/1598.4.0.0/1598.10.0.0/1598.13.0.0/17104.228.0.0/15108.176.64.0/18108.176.192.0/18136.223.36.0/24137.124.0.0/16137.124.10.0/24142.105.128.0/17150.154.0.0/16150.221.0.0/18150.224.246.0/23154.16.42.0/24167.254.206.0/24167.254.207.0/24168.148.96.0/19172.100.0.0/15184.74.0.0/17184.153.128.0/17192.31.156.0/24192.67.10.0/24192.149.230.0/24192.188.5.0/24198.179.96.0/19198.255.128.0/17199.29.192.0/24199.120.152.0/24
Show 10 more
IPv6 (13)

RPKI valid   RPKI invalid   no ROA covers it

Who AS11351 is reached through

The AS just before AS11351 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.

Provider authorization

AS11351 publishes no ASPA of its own. 4 ASes name it as a provider in theirs. Check a path.

The 4 ASes that name AS11351 as a provider

Routing registry objects

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

Sourceas-nameMaintained by
ARINCharter-Communications-TWC-11351-NORTHEASTMNT-CC-3517
LEVEL3NEDH-GWI-MNT
RADBRoadRunnerMAINT-RR

Route objects with origin AS11351: RADB 248 · LEVEL3 51 · ARIN 14 · RIPE 6 · AFRINIC 1

as-sets that list AS11351 (15)