subnet.im

AS7843Spectrum (Charter)

United StatesRegistryARINTypeEyeball

As of 10th November 2026, AS7843 (Spectrum (Charter)), an access network registered in the United States with ARIN, originates 155 IPv4 prefixes covering 2.3M addresses and 14 IPv6 prefixes. By IPv4 address space that makes it the 244th-largest of the 80,733 networks we see originating IPv4, and the 60th-largest of 18,751 in the United States. It is seen behind 26 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS1299 (Arelion (fka. Telia Carrier)), and in front of 32 downstream networks. 97% of its announcements have a valid RPKI ROA; 4 are RPKI-invalid. 90% 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

155

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)AS3491PCCW Global (HK) …AS6939Hurricane Electri…AS13030Init7 (Switzerlan…AS16552Tiggee LLCAS6667Elisa OyjAS398465Rackdog LLCAS2914NTT America, Inc.AS20130Depaul UniversityAS132337Axclusive

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

148

adjacent networks

Upstreams
2618%
Peers
9061%
Downstreams
3222%

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

Upstreams of AS7843
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer191,641102
AS1299Arelion (fka. Telia Carrier)SEPeer68,09799
AS3257GTT Communications Inc.USPeer40,030101
AS3356Lumen (Level 3)USPeer18,35153
AS3491PCCW Global (HK) Ltd.HKPeer9,18511
AS6830Liberty Global Europe Holding B.V.EUPeer7,9363
AS12956Telxius (Telefonica Global)ESPeer7,4237
AS49544i3D.net B.VNLPeer6,1732
AS58511Swoop (Anycast Global Backbone)AUPeer6,1192
AS2152CENIC - CalRENUSPeer5,8211

Prefixes

All 169

The largest blocks AS7843 originates, widest first.

Largest prefixes originated by AS7843
PrefixAddressesVisibility
71.64.0.0/121M75/76
107.8.0.0/13524k75/76
173.196.0.0/15131k76/76
9.236.0.0/1665.5k76/76
66.61.0.0/1665.5k76/76
24.92.0.0/1732.8k76/76
69.134.0.0/1732.8k76/76
76.178.0.0/1732.8k76/76
9.233.192.0/1816.4k76/76
69.76.64.0/1816.4k76/76

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

  • Valid97.0%164
  • Invalid2.4%4
  • No ROA0.6%1

Propagation

  • Globally propagated90% of full-feed peers or more89.9%152
  • Partially propagated40% to 90%5.9%10
  • Seen by few peersUnder 40%4.1%7

Prefix sizes

IPv4 — 155 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 12th Oct 2026.

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