AS41230 ASK4 Limited 🇬🇧 GB
Announcing 23 prefixes, seen at the RIS collectors.
IPv4 prefixes
16
122,112 (477 × /24)
IPv6 prefixes
7
56 × /32
Upstreams
2
transit providers observed
Peers
16
settlement-free adjacencies
Downstreams
4
transit customers observed
Customer cone
9
ASes reachable through it
Registry and operator data
- AS number
- AS41230
- Name
- ASK4 Limited
- Organisation
- ASK4 Ltd
- Country
- 🇬🇧 GB
- RIR
- RIPENCC
- Allocated
- 2006-07-05
- Network type
- NSP
- Scope
- Europe
- Peering policy
- Selective
- IRR as-set
- AS-ASK4
- Website
- https://www.ask4.com/
- PeeringDB
- net/1756
- Exchanges
- 6
- Facilities
- 8
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Upstreams
Networks seen providing transit to this one
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS1299 Arelion (fka. Telia Carrier) | 🇸🇪 SE | 68,265 | 134 | 472 | CAIDA |
| AS2914 NTT America, Inc. | 🇺🇸 US | 54,911 | 1,564 | 274 | CAIDA |
Peers
Adjacencies that look settlement-free rather than transit
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS6939 Hurricane Electric LLC | 🇺🇸 US | 53,108 | 185 | 270 | CAIDA |
| AS6461 Zayo Bandwidth | 🇺🇸 US | 50,690 | 214 | 8 | CAIDA |
| AS4637 Telstra International Limited | ðŸ‡ðŸ‡° HK | 37,111 | 666 | 12 | CAIDA |
| AS33891 Core-Backbone GmbH | 🇩🇪 DE | 25,024 | 1 | 26 | CAIDA |
| AS3216 Vimpelcom PJSC | 🇷🇺 RU | 24,958 | 590 | 12 | CAIDA |
| AS37721 Virtual Technologies & Solutions | 🇧🇫 BF | 21,709 | 64 | 37 | CAIDA |
| AS34549 meerfarbig GmbH & Co. KG | 🇩🇪 DE | 15,605 | 48 | 117 | CAIDA |
| AS20562 Open Peering (Broadband Hosting B.V.) | 🇳🇱 NL | 9,419 | 0 | 2 | CAIDA |
| AS24482 SG.GS | 🇸🇬 SG | 4,792 | 45 | 62 | CAIDA |
| AS17639 Converge ICT Solutions Inc. | 🇵🇠PH | 274 | 567 | 28 | CAIDA |
| AS29075 IELO-LIAZO SERVICES SAS | 🇫🇷 FR | 202 | 23 | 16 | CAIDA |
| AS12779 IT.Gate S.p.A. | 🇮🇹 IT | 74 | 25 | 18 | CAIDA |
| AS50304 Blix Solutions AS | 🇳🇴 NO | 34 | 103 | 74 | CAIDA |
| AS48362 Stadtwerke Feldkirch | 🇦🇹 AT | 16 | 8 | 35 | CAIDA |
| AS48185 team.blue NV | 🇧🇪 BE | 14 | 1 | 41 | CAIDA |
| AS50300 CustodianDC Limited | 🇬🇧 GB | 9 | 39 | 39 | CAIDA |
Downstreams
Networks this one appears to provide transit to
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS206049 Communicate Technology LTD | 🇬🇧 GB | 3 | 3 | 170 | CAIDA |
| AS8916 Portfast Ltd | 🇬🇧 GB | 2 | 6 | 198 | CAIDA |
| AS21396 NetConnex Broadband Ltd. | 🇬🇧 GB | 2 | 9 | 76 | CAIDA |
| AS30933 KDA WEB SERVICES LTD | 🇬🇧 GB | 0 | 6 | 252 | CAIDA |
Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.