S.J.M. Steffann
AS203993 is S.J.M. Steffann (steffann.nl). It announces 512 IPv4 addresses in 4 prefixes, and 4 IPv6 prefixes.
The Netherlands· RIPE· allocated 2015-09-16· education
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- The Netherlands496 · 96.88%
- United Kingdom16 · 3.13%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- GNA-DC1-AS
- name
- S.J.M. Steffann
- org
- ORG-SSP3-RIPE
- org name
- S.J.M. Steffann
- org address
- Tienwoningenweg 46, 7312 DN, Apeldoorn, NETHERLANDS
- org country
- NL
- country
- NL
- source
- ripe
- status
- ASSIGNED
- created
- 2015-09-16
- updated
- 2026-06-12
- maintainer
- RIPE-NCC-END-MNT|STEFFANN-MNT
- abuse name
- SJM Steffann NOC contact
- abuse email
- abuse@steffann.nl
- abuse kind
- role
What the databases see
Addresses each address-keyed database holds in the IPv4 it announces, as a share of that space, with its largest providers. Counts overlap.
- 1.17%
- None here
- None here
- None here
- None here
- None here
- Hosting IP512100.00%
- None here
- None here
- None here
- SSH IP152.93%
- SMTP IP112.15%
- 2.54%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 67.221.252.0/24also AS8038 | United States | valid | 2 | 2026-10-02 |
| 67.221.253.0/24also AS8038 | United States | valid | 2 | 2026-10-02 |
| 67.221.255.0/24also AS8038 | United States | valid | 2 | 2026-10-02 |
| 185.54.92.0/23 | The Netherlands | valid | 16 | 2026-10-02 |
IPv6 prefixes
Every IPv6 prefix BGP Route saw it announce.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 2607:fae0:f001::/48also AS8038 | United States | valid | 1 | 2026-10-02 |
| 2607:fae0:f00c::/48also AS8038 | United States | valid | 1 | 2026-10-02 |
| 2607:fae0:f00d::/48also AS8038 | United States | valid | 1 | 2026-10-02 |
| 2a00:8642::/32 | The Netherlands | valid | 19 | 2026-10-02 |
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