AS10838Charter Communications Inc
United StatesRegistryARINTypeEyeballAs of 11th November 2026, AS10838 (Charter Communications Inc), an access network registered in the United States with ARIN, originates 48 IPv4 prefixes covering 173k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 1,522nd-largest of the 80,733 networks we see originating IPv4, and the 437th-largest of 18,751 in the United States. It is seen behind 1 upstream network, most often AS7843 (Spectrum (Charter)). 96% of its announcements have a valid RPKI ROA; 2 are RPKI-invalid. 96% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS10838 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS10838 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
3
adjacent networks
- Upstreams
- 133%
- Peers
- 267%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS7843Spectrum (Charter) | US | Peer | 3,876 | 139 |
Prefixes
All 54The largest blocks AS10838 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 98.146.0.0/16 | 65.5k | 76/76 |
| 98.145.64.0/18 | 16.4k | 76/76 |
| 66.27.0.0/19 | 8.2k | 76/76 |
| 76.178.128.0/19 | 8.2k | 76/76 |
| 76.178.160.0/19 | 8.2k | 76/76 |
| 98.145.128.0/19 | 8.2k | 76/76 |
| 98.145.160.0/19 | 8.2k | 76/76 |
| 69.76.0.0/20 | 4.1k | 76/76 |
| 75.87.240.0/20 | 4.1k | 76/76 |
| 76.178.16.0/20 | 4.1k | 76/76 |
Routing health
How AS10838'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
- Valid96.3%52
- Invalid3.7%2
- No ROA0.0%0
Propagation
- Globally propagated90% of full-feed peers or more96.3%52
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%3.7%2
Prefix sizes
IPv4 — 48 prefixes
IPv6 — 6 prefixes
- /3017.2B × /6416.7%1
- /324.3B × /6416.7%1
- /36268M × /6433.3%2
- /4016.8M × /6416.7%1
- /441M × /6416.7%1
Recent changes
Announcements that started or stopped since 12th Oct 2026.
- Announced75.87.240.0/2129th Oct 2026
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.