AS51088 -


AS51088 A2B IP B.V.







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Hosted Domains

There are 3,986 domain names hosted across 225 IP addresses on this ASN.

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Whois Details

as-block:       AS47104 - AS52223
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:        2018-11-22T15:27:34Z
last-modified:  2018-11-22T15:27:34Z
source:         RIPE

aut-num:        AS51088
as-name:        A2B
org:            ORG-AIB18-RIPE
remarks:        ============================================================
remarks:        AMS-IX peering
remarks:        ============================================================
import:         from AS51088:AS-PEERS-AMSIX action pref=80; accept ANY AND NOT {}
export:         to AS51088:AS-PEERS-AMSIX announce AS-A2B
remarks:        ============================================================
remarks:        AMS-IX route server policy
remarks:        ============================================================
import-via:     AS6777 from AS-AMS-IX-RS EXCEPT AS61180:AS-PEERS-AMSIX accept ANY
export-via:     AS6777 to AS-AMS-IX-RS EXCEPT AS61180:AS-PEERS-AMSIX announce AS-A2B
remarks:        ============================================================
remarks:        A2B Internet customers
remarks:        ============================================================
import:         from AS57060 action pref=50; accept AS57060
export:         to AS57060 announce ANY
import:         from AS60358 action pref=50; accept AS60358
export:         to AS60358 announce ANY
import:         from AS200560 action pref=50; accept AS200560
export:         to AS200560 announce ANY
import:         from AS202169 action pref=50; accept AS202169
export:         to AS202169 announce ANY
import:         from AS206521 action pref=50; accept AS206521
export:         to AS206521 announce ANY
import:         from AS206637 action pref=50; accept AS-IQIP
export:         to AS206637 announce ANY
remarks:        ============================================================
remarks:        Transits
remarks:        ============================================================
import:         from AS2914 action pref=100; accept ANY AND NOT {}
export:         to AS2914 announce AS-A2B
import:         from AS3257 action pref=100; accept ANY AND NOT {}
export:         to AS3257 announce AS-A2B
import:         from AS6453 action pref=100; accept ANY AND NOT {}
export:         to AS6453 announce AS-A2B
remarks:        ============================================================
remarks:        Basic Interconnection Requirements
remarks:        ============================================================
remarks:        The following is required to share a BGP session with
remarks:        AS51088:
remarks:        - The customer's gateway router must be using BGP v4.
remarks:        - The customer must use a RIR assigned ASN.
remarks:        - The customer must have its customer-routes registered with
remarks:        an instance of the IRR. Its 'as-set' must include the ASNs
remarks:        originating routes and for each route exported a relevant
remarks:        'route' object is required.
remarks:        - The customer must export its customer-routes reasonably
remarks:        aggregated, and AS51088 will not accept any prefix that is
remarks:        longer than a /24 (except for denial-of-service mitigation).
remarks:        - The customer may use MED to signal its return path pre-
remarks:        ference in AS51088.
admin-c:        AS51088-RIPE
tech-c:         AS51088-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         A2B-INTERNET-MNT
created:        2010-05-28T12:48:01Z
last-modified:  2018-11-21T11:31:44Z
source:         RIPE

organisation:   ORG-AIB18-RIPE
org-name:       A2B IP B.V.
org-type:       LIR
address:        Wielingenstraat 93
address:        1441 ZN
address:        Purmerend
address:        NETHERLANDS
admin-c:        AS51088-RIPE
tech-c:         AS51088-RIPE
abuse-c:        AS51088-RIPE
mnt-ref:        A2B-INTERNET-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         A2B-INTERNET-MNT
created:        2017-05-23T07:08:54Z
last-modified:  2017-06-29T12:36:02Z
source:         RIPE
phone:          +31 85 9020410

role:           A2B Internet Role-Object
address:        Wielingenstraat 93
address:        NL-1441 ZN Purmerend
address:        The Netherlands
phone:          +31 85 902 0410
remarks:        ------------------------------------------------
remarks:        abuse complaints ONLY to please
remarks:        provide as much details and include full headers
remarks:        and/or logfiles.
remarks:        Peering questions / requests to
remarks:        Network questions / issues to
remarks:        The helpdesk can be reached at
remarks:        ------------------------------------------------
admin-c:        bais-RIPE
tech-c:         bais-RIPE
tech-c:         PMH31019-RIPE
nic-hdl:        AS51088-RIPE
mnt-by:         A2B-INTERNET-MNT
created:        2010-05-28T17:13:29Z
last-modified:  2018-11-28T13:55:59Z
source:         RIPE

IP Address Ranges

Netblock Description Num IPs MODMC-Madrid 256 A2B IP B.V. 2,048 Integrated Internet Services B.V. 256 MODMC-Madrid 256 MODMC - Amsterdam - The Netherlands 256 Aumatics B.V. 1,024 Onepoint NL B.V. 1,024 MODMC - Madrid - Spain 256 A2B IP B.V. 1,024 Mod Mission Critical LLC 256
Netblock Description
2001:67c:1064::/48 Easy Networking B.V.
2a00:d640::/32 NetBase BV
2a01:77e0::/32 Cloud2 B.V.
2a02:1668::/32 A2B IP B.V.
2a02:2738::/32 Gemeente Alkmaar
2a0b:1c0::/29 A2B IP B.V.

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Hosted Domains

There are 3,986 domain names hosted across 225 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP 189 126 121 97 90 84 74 71 71 68


There are 65 peers for this ASN.

SURFnet bv AS1103
IP-Only Networks AB AS12552
SEEWEB s.r.l. AS12637
IT.Gate S.p.A. AS12779
BIT BV AS12859
Nerim SAS AS13193
euNetworks GmbH AS13237
DigitalOcean, LLC AS14061
Wikimedia Foundation Inc. AS14907
CAIW Diensten B.V. AS15435


There are 4 upstreams for this ASN.

NTT America, Inc. AS2914
GTT Communications Inc. AS3257
Hurricane Electric LLC AS6939


There are 14 downstreams for this ASN.

DNS-Belgium AS199670
Coosto BV AS203234
Rodam B.V. AS205524
Green Mini host BV AS205668
3MUSK B.V. AS206073
Technoberg Beheer B.V. AS206521
IQIP B.V. AS206637
NTT America, Inc. AS2914
GTT Communications Inc. AS3257
onecentral B V AS49250

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Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP.

Find out more about AS51088 at robtex.

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