ResearchRouting table, RPKI, IRR & looking glass

AS8473 Bahnhof AB

AS8473 (BAHNHOF) is registered to Bahnhof AB in SE, through RIPE. It originates 133 prefixes in the global routing table.

122
IPv4 prefixes
11
IPv6 prefixes
596,480
IPv4 addresses
48%
RPKI valid

Who holds AS8473

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS8473
Handle
BAHNHOF
Organization
Bahnhof AB
Country
SE
Registry
RIPE
ASPA
4 providers
WHOIS recordRIPE
% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS8192 - AS8523'

as-block:       AS8192 - AS8523
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:23Z
last-modified:  2018-11-22T15:27:23Z
source:         RIPE

% Information related to 'AS8473'

% Abuse contact for 'AS8473' is 'abuse@bahnhof.net'

aut-num:        AS8473
as-name:        BAHNHOF
org:            ORG-BIA1-RIPE
remarks:        ------------------------------------------------------
remarks:        Bahnhof - AS8473:
remarks:        ------------------------------------------------------
remarks:        Please see https://as8473.peeringdb.com for
remarks:        IXPs and facilities where we are present.
remarks:
remarks:        BGP Graceful Shutdown (RFC8326): Supported
remarks:        RPKI Invalids (RFC8481): Dropped
remarks:        Customer MEDs: Honored
remarks:        Peer MEDs: Ignored
remarks:        AS-set announced: AS-BAHNHOF
remarks:
remarks:        ------------------------------------------------------
remarks:        Control section:
remarks:        ------------------------------------------------------
remarks:        BGP Community support for AS8473 customers:
remarks:
remarks:        8473:1050 Set local pref 50 (lowest preference)
remarks:        8473:1100 Set local pref 100 (transit preference)
remarks:        8473:1150 Set local pref 150 (backup peer preference)
remarks:        8473:1200 Set local pref 200 (peer preference)
remarks:        8473:1250 Set local pref 250 (backup downstream preference)
remarks:        (Default) local pref 300
remarks:
remarks:        8473:2000 Do not announce to transits
remarks:        8473:2001 Announce to transits prepend x1
remarks:        8473:2002 Announce to transits prepend x2
remarks:        8473:2003 Announce to transits prepend x3
remarks:        8473:2005 Announce to transits with no-export
remarks:
remarks:        8473:3000 Do not announce to peers
remarks:        8473:3001 Announce to peers prepend x1
remarks:        8473:3002 Announce to peers prepend x2
remarks:        8473:3003 Announce to peers prepend x3
remarks:        8473:3005 Announce to peers with no-export
remarks:
remarks:        8473:999 Blackhole community
remarks:
remarks:        ------------------------------------------------------
remarks:        Contact:
remarks:        ------------------------------------------------------
remarks:        * Routing: ncc@bahnhof.net
remarks:        * Peering: peering@bahnhof.net
remarks:        * Abuse: abuse@bahnhof.net
remarks:        ------------------------------------------------------
remarks:        Bahnhof applies selective peering
remarks:        ------------------------------------------------------
admin-c:        BD856-RIPE
tech-c:         BD856-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         BAHNHOF-NCC
created:        2001-12-10T13:09:20Z
last-modified:  2022-09-01T09:09:58Z
source:         RIPE

organisation:   ORG-BIA1-RIPE
org-name:       Bahnhof AB
country:        SE
reg-nr:         556519-9493
org-type:       LIR
address:        Fack 534 FE 756
address:        751 75
address:        Uppsala
address:        SWEDEN
phone:          +46(0)8 55577155
fax-no:         +46855577199
abuse-c:        AR13477-RIPE
admin-c:        BD856-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        BAHNHOF-NCC
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         BAHNHOF-NCC
created:        2004-04-17T12:02:22Z
last-modified:  2026-05-13T07:31:20Z
source:         RIPE # Filtered

role:           Bahnhof DBM
address:        Bahnhof AB
address:        Tunnelgatan 2
address:        111 37 Stockholm
address:        Sweden
nic-hdl:       

What AS8473 announces

Prefixes originated by AS8473 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
122
IPv6 prefixes
11
IPv4 addresses
596,480 (2,330 /24s)
RPKI valid
64 48%
RPKI invalid
0
RPKI not found
69
ROAs naming AS8473
70
With an IRR route object
125 93%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

IPv4 (122)
5.150.192.0/1837.123.128.0/1846.59.0.0/1762.63.192.0/1879.136.0.0/1779.136.72.0/2281.88.72.0/2281.88.78.0/2381.170.128.0/1782.196.96.0/1985.24.128.0/1788.151.172.0/2291.132.176.0/2291.194.26.0/2491.207.80.0/2391.207.80.0/2491.207.81.0/2491.217.181.0/2491.220.19.0/2494.254.0.0/1798.128.0.0/16109.169.100.0/23109.169.102.0/24109.169.108.0/24109.228.128.0/18155.4.0.0/16158.174.0.0/16176.10.128.0/17176.124.225.0/24178.174.128.0/17185.9.60.0/22185.57.4.0/22185.90.176.0/22185.159.156.0/24185.170.72.0/22192.36.103.0/24192.42.97.0/24192.71.5.0/24192.71.45.0/24192.71.194.0/24192.121.12.0/24192.121.24.0/24192.121.88.0/24192.121.101.0/24192.121.117.0/24192.165.182.0/24192.165.243.0/24192.176.242.0/24192.195.136.0/24193.17.207.0/24193.180.22.0/24193.180.25.0/24193.180.86.0/24193.180.87.0/24193.181.65.0/24193.182.18.0/24193.182.62.0/24193.182.63.0/24193.182.161.0/24193.182.167.0/24193.182.170.0/24193.182.238.0/24193.183.22.0/24193.183.47.0/24193.183.48.0/24193.183.81.0/24193.183.92.0/24193.183.105.0/24193.183.174.0/24193.183.175.0/24193.183.176.0/24193.183.177.0/24193.183.178.0/24193.183.179.0/24193.183.251.0/24193.200.86.0/23193.234.7.0/24193.234.47.0/24193.234.54.0/24193.234.99.0/24193.235.35.0/24193.235.67.0/24193.235.195.0/24194.14.2.0/24194.14.46.0/24194.14.84.0/24194.14.165.0/24194.14.176.0/24194.14.196.0/23194.14.216.0/24194.14.237.0/24194.68.60.0/24194.68.66.0/24194.68.86.0/24194.68.211.0/24194.68.223.0/24194.68.224.0/24194.71.94.0/24194.71.99.0/24194.71.112.0/24194.71.215.0/24194.103.93.0/24194.132.86.0/24194.132.162.0/24194.132.209.0/24195.5.118.0/24195.5.119.0/24195.64.144.0/23195.178.160.0/19195.210.36.0/23195.216.231.0/24195.242.132.0/23212.85.64.0/19212.116.64.0/19213.80.96.0/19213.80.120.0/24213.80.125.0/24213.136.32.0/19213.164.192.0/19217.27.160.0/19
Show 2 more
IPv6 (11)

RPKI valid   RPKI invalid   no ROA covers it

Who AS8473 is reached through

The AS just before AS8473 in the paths our looking glass collectors hold, for 60 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Provider authorization

AS8473 publishes an ASPA naming these providers. 4 ASes name it as a provider in theirs. Check a path.

The 4 ASes that name AS8473 as a provider