AS51155 Citylink Telecom Sp. z o.o. 🇵🇱 PL
Announcing 4 prefixes, seen at the RIS collectors.
IPv4 prefixes
3
5,120 (20 × /24)
IPv6 prefixes
1
1 × /32
Upstreams
4
transit providers observed
Peers
4
settlement-free adjacencies
Downstreams
4
transit customers observed
Customer cone
5
ASes reachable through it
Registry and operator data
- AS number
- AS51155
- Name
- Citylink Telecom Sp. z o.o.
- Organisation
- Citylink Telecom
- Country
- 🇵🇱 PL
- RIR
- RIPENCC
- Allocated
- 2010-06-09
- Network type
- Cable/DSL/ISP
- Scope
- Not Disclosed
- Peering policy
- Open
- IRR as-set
- AS-TBTELECOM-EQUINIX
- Website
- http://www.citylink.pl/
- PeeringDB
- net/19368
- Exchanges
- 4
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 |
|---|---|---|---|---|---|
| AS3356 Lumen (Level 3) | 🇺🇸 US | 70,880 | 2,082 | 202 | CAIDA |
| AS9002 RETN Limited | 🇬🇧 GB | 50,049 | 18 | 39 | CAIDA |
| AS201054 Stowarzyszenie e-Poludnie | 🇵🇱 PL | 17,677 | 0 | 1 | CAIDA |
| AS50263 A-Systems Sp. z o.o. | 🇵🇱 PL | 1,436 | 1 | 101 | CAIDA |
Peers
Adjacencies that look settlement-free rather than transit
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS6939 Hurricane Electric LLC | 🇺🇸 US | 52,966 | 235 | 87 | CAIDA |
| AS34927 iFog GmbH | 🇨🇭 CH | 15,320 | 38 | 10 | CAIDA |
| AS24482 SG.GS | 🇸🇬 SG | 4,727 | 45 | 12 | CAIDA |
| AS49559 A-Systems Sp. z o.o. | 🇵🇱 PL | 134 | 11 | 10 | CAIDA |
Downstreams
Networks this one appears to provide transit to
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS41865 BIALL-NET Sp. z o.o. | 🇵🇱 PL | 0 | 6 | 252 | CAIDA |
| AS206651 Telemedian Sp. z o.o. | 🇵🇱 PL | 0 | 1 | 42 | CAIDA |
| AS56408 Gdansk Airport Sp. z o.o. | 🇵🇱 PL | 0 | 1 | 4 | CAIDA |
| AS51976 JP-Telekom Sp z o.o. | 🇵🇱 PL | 0 | 1 | 1 | 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.