ResearchRouting table, RPKI, IRR & looking glass

AS5466 Eircom Limited

AS5466 (EIRCOM) is registered to Eircom Limited in IE, through RIPE. It originates 28 prefixes in the global routing table.

25
IPv4 prefixes
3
IPv6 prefixes
1,110,528
IPv4 addresses
89%
RPKI valid

Who holds AS5466

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

AS number
AS5466
Handle
EIRCOM
Organization
Eircom Limited
Country
IE
Registry
RIPE
ASPA
None published
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 'AS5377 - AS5535'

as-block:       AS5377 - AS5535
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:        2018-11-22T15:27:22Z
last-modified:  2018-11-22T15:27:22Z
source:         RIPE

% Information related to 'AS5466'

% Abuse contact for 'AS5466' is 'ripe-support@eir.ie'

aut-num:        AS5466
as-name:        EIRCOM
descr:          Internet House
descr:          26-34 Temple Bar
descr:          Dublin 2
descr:          Ireland
org:            ORG-EA29-RIPE
remarks:        ---------------------------------------------------------------
remarks:        Transit providers: Cogent, Arelion
import:         from AS174 action pref=65235; accept ANY
export:         to AS174 announce AS-EIRCOM
import:         from AS1299 action pref=65235; accept ANY
export:         to AS1299 announce AS-EIRCOM
remarks:        ---------------------------------------------------------------
remarks:        Eir has an open peering policy
import:         from AS-ANY accept ANY AND NOT {0.0.0.0/0}
export:         to AS-ANY announce AS-EIRCOM AND NOT {0.0.0.0/0}
remarks:        ---------------------------------------------------------------
admin-c:        EN369-RIPE
tech-c:         EN369-RIPE
remarks:        ---------------------------------------------------------
remarks:        Incoming route local-preference policy is as follows
remarks:        - 800 for Eircom customer routes , 700 for Eircom customer backup routes
remarks:        - 650 for PNI in Ireland
remarks:        - 600 for INEX routes
remarks:        - 550 for PNI outside Ireland
remarks:        - 500 for IXPs outside Ireland
remarks:        - 300 for Transit Provider routes
remarks:        ---------------------------------------------------------
remarks:        Peering/Routing contact address: peering@eir.ie
remarks:        ---------------------------------------------------------
remarks:        Eircom AS5466 is present at the following IXPs and peers with the Route Servers
remarks:        INEX LAN1
remarks:        LINX LON1
remarks:        AMS-IX
remarks:        Eircom AS5466 also privately peers where justified by traffic levels
remarks:        Also see AS5466 entry at peeringdb.com for list of interconnection facilities
remarks:        ---------------------------------------------------------
remarks:        Supported eBGP customer prefix exclude communities for transits
remarks:        5466:1299 meaning AS5466 do not advertise to AS1299
remarks:        ---------------------------------------------------------
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         TE-MNT
created:        2002-09-13T14:07:24Z
last-modified:  2025-01-13T14:39:29Z
source:         RIPE # Filtered

organisation:   ORG-EA29-RIPE
org-name:       Eircom Limited
country:        IE
reg-nr:         98789
org-type:       LIR
address:        2 Heuston South Quarter, St Johns Road West
address:        D08 Y42N
address:        Dublin 8
address:        IRELAND
phone:          +35317010000
fax-no:         +35317017796
remarks:        eir and Open eir are trading names of eircom limited
admin-c:        LDK23-RIPE
admin-c:        RC17-RIPE
admin-c:        MW9186-RIPE
mnt-ref:        TE-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         TE-MNT
abuse-c:        ENA33-RIPE
created:        2004-04-17T11:27:21Z
last-modified:  2026-05-13T07:30:11Z
source:         RIPE # Filtered

role:           Eircom Networks
address:        Eircom Ltd
address:        2 Heuston South Quarter, St Johns Road West
address:        D08 Y42N
address:        Ireland
remarks:        -----------------------------------------------------------
remarks:  

What AS5466 announces

Prefixes originated by AS5466 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
25
IPv6 prefixes
3
IPv4 addresses
1,110,528 (4,338 /24s)
RPKI valid
25 89%
RPKI invalid
0
RPKI not found
3
ROAs naming AS5466
33
With an IRR route object
28 100%

Who AS5466 is reached through

The AS just before AS5466 in the paths our looking glass collectors hold, for 28 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Provider authorization

AS5466 publishes no ASPA of its own. 1 AS name it as a provider in theirs. Check a path.

The 1 ASes that name AS5466 as a provider