AS51088 -


AS51088 A2B IP B.V.






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Hosted Domains

There are 14,193 domain names hosted across 390 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:        2020-10-29T07:18:47Z
last-modified:  2020-10-29T07:18:47Z
source:         RIPE

aut-num:        AS51088
as-name:        A2B
org:            ORG-AIB22-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:  2020-11-17T17:48:41Z
source:         RIPE
abuse-c:        AS51088-RIPE
abuse-org:      ORG-AIB22-RIPE

organisation:   ORG-AIB22-RIPE
org-name:       A2B IP B.V.
country:        NL
org-type:       LIR
address:        Wielingenstraat 93
address:        1441ZN
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:        2019-03-22T10:08:47Z
last-modified:  2020-12-16T13:40:50Z
source:         RIPE
phone:          +31859020410

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 A2B IP B.V. 2,048 Zeta IT Security B.V. 256 Aumatics B.V. 1,024 A2B IP B.V. 1,024 B.V. 1,024 Cloud2 B.V. 1,024 GrafiCom Solutions B.V. 1,024 Nebula-Online B.V. 1,024 Advanced Team Systems Center B.V. 512 Whoopa hosting - nl.atsc 256 VOF 1,024 B.V. 1,024 Access range 512 Effect ICT Solutions B.V. 1,024 Easy Networking B.V. 256 Core Competence IT 512 IP-Connected B.V. 256 Montapacking Fulfilment B.V. 256 Gemeente Heerhugowaard 2,048 A2B IP B.V. 8,192 A2B IP B.V. 8,192 A2B IP B.V. 256 B.V. 2,048 Easy Networking B.V. 256 Riksjaonline B.V. 512 Gemeente Alkmaar 2,048
Netblock Description
2001:67c:1064::/48 Easy Networking B.V.
2a01:77e0::/32 B.V.
2a02:1668::/32 A2B IP B.V.
2a02:166b::/32 DSL/FTTH
2a02:2738::/32 Gemeente Alkmaar
2a06:2602::/32 A2B IP B.V.
2a0b:1c0::/29 A2B IP B.V.

Network Speed


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Hosted Domains

There are 14,193 domain names hosted across 390 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP 674 658 264 257 252 244 241 213 210 204 203 203 202 197 190 190 177 171 171 162 161 161 155 153 151 149 148 147 145 140 138 136 132 131 128 124 121 114 112 111 111 111 111 111 110 108 107 107 106 105


There are 107 peers for this ASN.


There are 3 upstreams for this ASN.


There are 18 downstreams for this ASN.

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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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