AS20115Spectrum (Charter)
United StatesRegistryARINTypeEyeballAs of 26th September 2026, AS20115 (Spectrum (Charter)), an access network registered in the United States with ARIN, originates 2,343 IPv4 prefixes covering 13.2M addresses and 2,304 IPv6 prefixes. By IPv4 address space that makes it the 57th-largest of the 79,516 networks we see originating IPv4, and the 18th-largest of 18,424 in the United States. It is seen behind 25 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS7843 (Spectrum (Charter)), and in front of 130 downstream networks. 99% of its announcements have a valid RPKI ROA; 7 are RPKI-invalid. 55% of its routes reach at least 90% of full-feed peers, and 16 prefixes are also originated by another network.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS20115 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS20115 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
370
adjacent networks
- Upstreams
- 257%
- Peers
- 21558%
- Downstreams
- 13035%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS6939Hurricane Electric LLC | US | Peer | 88,139 | 123 |
| AS7843Spectrum (Charter) | US | Peer | 44,802 | 138 |
| AS3257GTT Communications Inc. | US | Peer | 42,473 | 142 |
| AS1299Arelion (fka. Telia Carrier) |  SE | Peer | 34,250 | 116 |
| AS6461Zayo Bandwidth | US | Peer | 29,180 | 27 |
| AS6830Liberty Global Europe Holding B.V. |  EU | Peer | 19,126 | 11 |
| AS3356Lumen (Level 3) | US | Peer | 10,819 | 36 |
| AS3491PCCW Global (HK) Ltd. |  HK | Peer | 6,911 | 20 |
| AS7713PT Telkom Indonesia Tbk |  ID | Peer | 6,244 | 3 |
| AS4637Telstra International Limited | HK | Peer | 5,287 | 7 |
Prefixes
All 4,647The largest blocks AS20115 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 47.132.0.0/15 | 131k | 81/81 |
| 23.84.0.0/16 | 65.5k | 80/81 |
| 23.87.0.0/16 | 65.5k | 80/81 |
| 24.217.0.0/16 | 65.5k | 81/81 |
| 47.12.0.0/16 | 65.5k | 80/81 |
| 47.14.0.0/16 | 65.5k | 81/81 |
| 47.135.0.0/16 | 65.5k | 81/81 |
| 47.226.0.0/16 | 65.5k | 81/81 |
| 47.229.0.0/16 | 65.5k | 80/81 |
| 66.52.0.0/16 | 65.5k | 80/81 |
Routing health
How AS20115'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
- Valid98.7%4,585
- Invalid0.2%7
- No ROA1.2%55
Propagation
- Globally propagated90% of full-feed peers or more54.7%2,543
- Partially propagated40% to 90%<0.1%4
- Seen by few peersUnder 40%45.2%2,100
Prefix sizes
IPv4 — 2,343 prefixes
IPv6 — 2,304 prefixes
- /2868.7B × /64<0.1%1
- /3017.2B × /64<0.1%1
- /318.6B × /640.1%3
- /324.3B × /643.9%90
- /332.1B × /64<0.1%1
- /36268M × /640.6%14
- /4016.8M × /640.8%19
- /441M × /641.4%32
- /4865.5k × /6493.0%2,143
Recent changes
Announcements that started or stopped since 28th Aug 2026.
- Announced150.181.14.0/2326th Sept 2026
- Announced2600:6c20:735::/4825th Sept 2026
- Announced2600:6c10:a22::/4825th Sept 2026
- Withdrawn128.92.8.0/2125th Sept 2026
- Withdrawn134.16.0.0/1725th Sept 2026
- Withdrawn138.229.176.0/2025th Sept 2026
- Withdrawn141.126.64.0/1825th Sept 2026
- Withdrawn150.181.14.0/2325th Sept 2026
- Withdrawn150.224.244.0/2425th Sept 2026
- Withdrawn159.111.238.0/2325th Sept 2026
- Withdrawn174.85.64.0/1825th Sept 2026
- Withdrawn174.87.128.0/1825th Sept 2026
100 announced and 88 withdrawn in all; the most recent are shown.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.