ResearchRouting table, RPKI, IRR & looking glass

AS7843 Charter Communications Inc

AS7843 (TWC-7843-BB) is registered to Charter Communications Inc in US, through ARIN. It originates 156 prefixes in the global routing table.

144
IPv4 prefixes
12
IPv6 prefixes
2,192,896
IPv4 addresses
97%
RPKI valid

Who holds AS7843

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

AS number
AS7843
Handle
TWC-7843-BB
Organization
Charter Communications Inc
Country
US
Registry
ARIN
ASPA
None published
WHOIS recordARIN
#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       7843
ASName:         TWC-7843-BB
ASHandle:       AS7843
RegDate:        1997-01-23
Updated:        2018-11-27
Ref:            https://rdap.arin.net/registry/autnum/7843



OrgName:        Charter Communications Inc
OrgId:          CC-3517
Address:        6175 S. Willow Dr
City:           Greenwood Village
StateProv:      CO
PostalCode:     80111
Country:        US
RegDate:        2018-10-10
Updated:        2022-09-14
Comment:        Legacy Time Warner Cable IP Assets
Ref:            https://rdap.arin.net/registry/entity/CC-3517


OrgAbuseHandle: ABUSE19-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-877-777-2263 
OrgAbuseEmail:  abuse@charter.net
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE19-ARIN

OrgTechHandle: IPADD1-ARIN
OrgTechName:   IPAddressing
OrgTechPhone:  +1-866-248-7662 
OrgTechEmail:  PublicIPAddressing@charter.com
OrgTechRef:    https://rdap.arin.net/registry/entity/IPADD1-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

What AS7843 announces

Prefixes originated by AS7843 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
144
IPv6 prefixes
12
IPv4 addresses
2,192,896 (8,566 /24s)
RPKI valid
152 97%
RPKI invalid
4
RPKI not found
0
ROAs naming AS7843
456
With an IRR route object
92 58%

Announced prefixes

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

IPv4 (144)
9.233.0.0/199.233.64.0/199.233.192.0/189.236.0.0/169.237.48.0/209.237.64.0/2016.191.0.0/2324.27.224.0/2024.30.192.0/1924.30.200.0/2324.30.214.0/2424.30.215.0/2424.33.240.0/2024.33.240.0/2424.33.241.0/2424.33.242.0/2324.33.244.0/2224.33.248.0/2224.33.248.0/2324.33.252.0/2224.33.253.0/2424.33.254.0/2324.92.0.0/1724.92.64.0/1924.106.215.0/2447.43.111.0/2448.44.132.0/2348.44.134.0/2348.44.136.0/2248.44.140.0/2248.44.176.0/2148.44.184.0/2148.44.224.0/2048.44.240.0/2064.183.128.0/1964.183.160.0/2065.28.128.0/2465.28.129.0/2465.28.130.0/2465.28.131.0/2465.28.192.0/1965.185.241.0/2465.185.245.0/2466.61.0.0/1666.61.176.0/2066.61.176.0/2466.61.177.0/2466.61.178.0/2366.61.180.0/2266.61.184.0/2266.61.188.0/2266.61.189.0/2466.109.0.0/2067.48.96.0/1968.168.72.0/2269.63.88.0/2169.76.0.0/1969.76.64.0/1869.134.0.0/1769.134.48.0/2269.134.61.0/2469.134.64.0/2369.134.66.0/2369.134.68.0/2369.134.72.0/2269.134.86.0/2469.134.88.0/2469.134.90.0/2469.134.94.0/2469.134.128.0/1869.134.130.0/2369.134.130.0/2469.134.131.0/2469.134.140.0/2269.134.144.0/2069.134.146.0/2469.134.160.0/1969.134.188.0/2269.134.192.0/1869.134.192.0/2369.134.194.0/2369.134.196.0/2369.134.212.0/2469.134.214.0/2469.134.216.0/2469.134.218.0/2469.134.234.0/2471.64.0.0/1271.74.176.0/2072.129.192.0/1972.129.220.0/2474.87.128.0/1974.87.240.0/2176.57.225.0/2476.57.241.0/2476.63.162.0/2376.63.165.0/2476.85.224.0/1976.85.232.0/2376.85.238.0/2476.89.0.0/1876.92.64.0/1976.178.0.0/1776.178.128.0/1898.120.110.0/2398.120.110.0/24107.8.0.0/13107.14.16.0/20107.14.32.0/20107.14.48.0/20107.14.64.0/19107.14.64.0/21107.14.120.0/24107.14.121.0/24107.14.122.0/24107.14.123.0/24107.14.124.0/24107.14.125.0/24107.14.126.0/24107.14.127.0/24
Show 24 more
IPv6 (12)

RPKI valid   RPKI invalid   no ROA covers it

Who AS7843 is reached through

The AS just before AS7843 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

AS7843 publishes no ASPA of its own. 1 AS name it as a provider in theirs. Check a path.

The 1 ASes that name AS7843 as a provider

Routing registry objects

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