subnet.im

AS7843Spectrum (Charter)

United StatesRegistryARINTypeEyeball

As of 26th September 2026, AS7843 (Spectrum (Charter)), an access network registered in the United States with ARIN, originates 152 IPv4 prefixes covering 2.3M addresses and 14 IPv6 prefixes. By IPv4 address space that makes it the 242nd-largest of the 79,516 networks we see originating IPv4, and the 60th-largest of 18,424 in the United States. It is seen behind 23 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 30 downstream networks. 98% of its announcements have a valid RPKI ROA; 4 are RPKI-invalid. 92% of its routes reach at least 90% of full-feed peers, and 10 prefixes are also originated by another network.

At a glance

IPv4 prefixes

152

IPv6 prefixes

14

IPv4 addresses

2.3M

IPv6 /64s

25.8B

Upstream graph

The networks AS7843 is seen behind, one and two hops out, drawn from real AS paths.

AS7843Toward the internet core
Upstream graph for AS7843: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS7843Spectrum (Charter)This networkAS1299Arelion (fka. Tel…AS3257GTT Communication…AS3356Lumen (Level 3)AS6939Hurricane Electri…AS12956Telxius (Telefoni…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS6667Elisa OyjAS398465Rackdog LLCAS2914NTT America, Inc.AS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS7843 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

139

adjacent networks

Upstreams
2317%
Peers
8662%
Downstreams
3022%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS7843
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer224,776105
AS1299Arelion (fka. Telia Carrier)SEPeer58,07697
AS3257GTT Communications Inc.USPeer44,184102
AS3356Lumen (Level 3)USPeer16,40455
AS12956Telxius (Telefonica Global)ESPeer12,8177
AS3491PCCW Global (HK) Ltd.HKPeer9,22412
AS6830Liberty Global Europe Holding B.V.EUPeer8,0125
AS49544i3D.net B.VNLPeer6,2062
AS58511Swoop (Anycast Global Backbone)AUPeer6,1812
AS2152CENIC - CalRENUSPeer5,8221

Prefixes

All 166

The largest blocks AS7843 originates, widest first.

Largest prefixes originated by AS7843
PrefixAddressesVisibility
71.64.0.0/121M80/81
107.8.0.0/13524k80/81
173.196.0.0/15131k81/81
9.236.0.0/1665.5k81/81
66.61.0.0/1665.5k81/81
24.92.0.0/1732.8k81/81
69.134.0.0/1732.8k81/81
76.178.0.0/1732.8k81/81
9.233.192.0/1816.4k81/81
69.76.64.0/1816.4k81/81

Routing health

How AS7843's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid97.6%162
  • Invalid2.4%4
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more92.2%153
  • Partially propagated40% to 90%5.4%9
  • Seen by few peersUnder 40%2.4%4

Prefix sizes

IPv4 — 152 prefixes

IPv6 — 14 prefixes

  • /318.6B × /647.1%1
  • /324.3B × /6428.6%4
  • /4016.8M × /6428.6%4
  • /441M × /6421.4%3
  • /4865.5k × /6414.3%2

Recent changes

Announcements that started or stopped since 28th Aug 2026.

19 announced and 3 withdrawn in all; the most recent are shown.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.