AS5491
Jan Olsson
AS5491 is Jan Olsson (olsson.net). It announces 256 IPv4 addresses in 1 prefix, and 0 IPv6 prefixes.
Denmark· RIPE· allocated 2011-11-30· business
256
IPv4 addresses announced
1
IPv4 prefix
0
IPv6 prefixes
100.00%
of its routes RPKI-valid
256
of its IPv4 geolocated
1
country
Where its space is
The IPv4 it announces that IP Geolocation places, by country. A /24 counts for the AS announcing most of it.
- Denmark256 · 100.00%
Registry record
Its ASN Whois record, as the registry publishes it.
- handle
- OLSSON_NET
- name
- Jan Olsson
- org
- ORG-OA440-RIPE
- org name
- Jan Olsson
- org address
- Bygaden 18, Vallensbaek, Denmark
- org country
- DK
- country
- DK
- source
- ripe
- status
- ASSIGNED
- updated
- 2024-11-08
- remarks
- +------- AS5491 Internet since 1993 -------+ / | Corporate site: http://www.olsson.net/ | / | Please replace _at_ with the @-sign | / | Peering issues: peering_at_olsson.net | / | Routing & Tech: bgp4-adm_at_olsson.net | / | Abuse and SPAM: abuse_at_olsson.net | / | NOC (24/7/365): dnoc_at_olsson.net | / IPv4 transits / Danish network for Research and Education / Cibicom A/S / IPv4 peerings / FREDERICIAGADE-NETWORK / LM Jogback Datakonsult / IPv6 transits / Swipnet (AS1257) / Nianet A/S (AS31027) / IPv6 pee
- maintainer
- RIPE-NCC-END-MNT|OLSSON-MNT
- abuse name
- Abuse-C Role
- abuse email
- jan@olsson.net
- 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.
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- None here
- 1.56%
- None here
- 0.39%
IPv4 prefixes
Every IPv4 prefix BGP Route saw it announce. A prefix another AS also announces says so.
| PREFIX | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|
| 193.163.221.0/24 | Denmark | valid | 18 | 2026-10-02 |
00 · Evaluate
Test the real build first.
An evaluation license puts a full current build in your hands, with no sampling, so you can measure it against your own traffic before anyone talks about terms.
01 · License
Then license what you use.
Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.