AS203993 S.J.M. Steffann 🇳🇱 NL
Announcing 8 prefixes, seen at the RIS collectors.
IPv4 prefixes
4
1,280 (5 × /24)
IPv6 prefixes
4
1 × /32
Upstreams
2
transit providers observed
Peers
7
settlement-free adjacencies
Downstreams
2
transit customers observed
Customer cone
2
ASes reachable through it
Registry and operator data
- AS number
- AS203993
- Name
- S.J.M. Steffann
- Organisation
- Global NOG Alliance
- Country
- 🇳🇱 NL
- RIR
- RIPENCC
- Allocated
- 2015-09-16
- Network type
- Educational/Research
- Traffic levels
- 100-1000Mbps
- Scope
- Europe
- Peering policy
- Open
- IRR as-set
- AS203993:AS-ALL
- Website
- https://www.steffann.nl/
- PeeringDB
- net/12946
- Exchanges
- 1
- Facilities
- 1
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 |
|---|---|---|---|---|---|
| AS50673 Serverius Holding B.V. | 🇳🇱 NL | 20,783 | 131 | 165 | CAIDA |
| AS12414 Solcon Internetdiensten B.V. | 🇳🇱 NL | 6 | 19 | 29 | CAIDA |
Peers
Adjacencies that look settlement-free rather than transit
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS6939 Hurricane Electric LLC | 🇺🇸 US | 55,649 | 239 | 39 | CAIDA |
| AS5405 Inter.link GmbH | 🇩🇪 DE | 28,849 | 11 | 1 | CAIDA |
| AS24482 SG.GS | 🇸🇬 SG | 20,856 | 45 | 12 | CAIDA |
| AS34927 iFog GmbH | 🇨🇭 CH | 20,179 | 40 | 3 | CAIDA |
| AS34019 Hivane Association | 🇫🇷 FR | 39 | 6 | 8 | CAIDA |
| AS58057 Securebit AG | 🇨🇭 CH | 21 | 13 | 12 | CAIDA |
| AS202365 Chronos | 🇹🇷 TR | 0 | 4 | 6 | CAIDA |
Downstreams
Networks this one appears to provide transit to
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS215771 John David Verolme trading as VeroCon | 🇳🇱 NL | 0 | 1 | 75 | inferred |
| AS8038 6connect, Inc. | 🇺🇸 US | 0 | 9 | 67 | 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.