AS3300British Telecommunications Limited
United KingdomRegistryRIPE NCCAt a glance
IPv4 prefixes
123
IPv6 prefixes
29
IPv4 addresses
604k
IPv6 /64s
12.8B
Upstream graph
The networks AS3300 is seen behind, one and two hops out, drawn from real AS paths.
AS3300Toward the internet core
Networks observed one and two hops upstream of AS3300 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
183
adjacent networks
- Upstreams
- 3921%
- Peers
- 12468%
- Downstreams
- 2011%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS2914NTT America, Inc. |  US | Peer | 3,752 | 109 |
| AS1299Arelion (fka. Telia Carrier) |  SE | Peer | 3,524 | 115 |
| AS4637Telstra International Limited |  HK | Peer | 1,364 | 87 |
| AS3491PCCW Global (HK) Ltd. | HK | Peer | 1,351 | 78 |
| AS4657StarHub Ltd |  SG | Peer | 883 | 71 |
| AS6939Hurricane Electric LLC | US | Peer | 605 | 18 |
| AS2497Internet Initiative Japan Inc. |  JP | Peer | 574 | 5 |
| AS9002RETN Limited | GB | Peer | 515 | 13 |
| AS6762Telecom Italia Sparkle (Seabone) |  IT | Peer | 409 | 87 |
| AS18106Viewqwest Pte Ltd | SG | Peer | 385 | 3 |
Prefixes
All 152The largest blocks AS3300 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 205.248.0.0/16 | 65.5k | 79/80 |
| 206.182.0.0/16 | 65.5k | 79/80 |
| 207.117.0.0/16 | 65.5k | 79/80 |
| 207.209.0.0/16 | 65.5k | 79/80 |
| 209.28.0.0/16 | 65.5k | 79/80 |
| 204.231.0.0/17 | 32.8k | 79/80 |
| 61.14.0.0/18 | 16.4k | 79/80 |
| 63.250.128.0/18 | 16.4k | 79/80 |
| 192.237.64.0/18 | 16.4k | 79/80 |
| 198.207.64.0/18 | 16.4k | 79/80 |
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.