AS199390 Michal Swierk trading as ALFA-KOMPUTER SYSTEM 🇵🇱 PL
Announcing 3 prefixes, seen at the RIS collectors.
IPv4 prefixes
3
3,072 (12 × /24)
IPv6 prefixes
0
-
Upstreams
2
transit providers observed
Peers
1
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS199390
- Name
- Michal Swierk trading as ALFA-KOMPUTER SYSTEM
- Organisation
- Alfa Komputer System
- Country
- 🇵🇱 PL
- RIR
- RIPENCC
- Allocated
- 2013-02-08
- Network type
- Cable/DSL/ISP
- Traffic levels
- 1-5Gbps
- Scope
- Regional
- Peering policy
- Open
- IRR as-set
- AS199390
- Website
- https://alfaks.com
- PeeringDB
- net/25739
- Exchanges
- 1
- Facilities
- 2
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
3 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 185.18.132.0/22 v4 | no ROA | 44 | 24482199390 | 2026-09-18 |
| 185.255.252.0/22 v4 | no ROA | 44 | 24482199390 | 2026-09-18 |
| 195.136.176.0/22 v4 | RPKI valid | 44 | 24482199390 | 2026-09-18 |