AS51088 NSP
A2B
A2B IP B.V.
NL
58
IPv4 Prefixes
19
IPv6 Prefixes
0
peering network
4
IX Points
19
Facilities
AS Name
A2B
Registration Date
2010-05-28T12:48:01Z
Update Date
2026-01-20T11:49:39Z
IPv4 Prefixes (50)
91.213.13.0/24 192.166.96.0/22 93.190.124.0/24 193.108.238.0/24 31.41.255.0/24 46.244.21.0/24 185.225.220.0/22 185.41.124.0/22 46.244.12.0/23 46.244.127.0/24 46.244.22.0/24 46.244.0.0/21 46.244.30.0/24 46.244.20.0/24 45.85.191.0/24 185.46.173.0/24 92.249.7.0/24 185.51.52.0/23 185.63.244.0/22 193.169.108.0/23 +30 个
IPv6 Prefixes (19)
2a13:2c00::/29 2a01:77e0::/32 2a13:800::/29 2a02:166b::/32 2a02:2738::/32 2a04:6dc0::/32 2a05:2900::/29 2a06:2602::/32 2a0a:e80::/29 2a0b:1c0::/29 2a02:1668::/32 2a0f:ba00::/29 +7 个
AS51088 network topology (Upstream/Downstream)
Facility List (19)
Name City Country
NIKHEF Amsterdam Amsterdam NL
Digital Realty Amsterdam AMS17 Amsterdam NL
Equinix AM7 - Amsterdam, Kuiperberweg Amsterdam NL
NorthC Oude Meer Oude Meer NL
Iron Mountain Data Center - Amsterdam (AMS-1) Amsterdam NL
Digital Realty Amsterdam AMS18 Amsterdam NL
Eurofiber Datacenter Nedzone Steenbergen NL
Datacenter Noord-Holland Alkmaar NL
NorthC Amsterdam 1 Amsterdam NL
Eurofiber Datacenter Rotterdam Alblasserdam NL
Equinix AM5 - Amsterdam, Schepenbergweg Amsterdam NL
NorthC Delft Delft NL
EFX Eindhoven NL
Bytesnet Rotterdam Rotterdam NL
NorthC Eindhoven 1 Eindhoven NL
NorthC Rotterdam Waalhaven Rotterdam NL
Eurofiber Datacenter Brabant Waalwijk NL
Eurofiber Datacenter Utrecht Groenekan NL
Eurofiber Datacenter Amsterdam Hoofddorp NL
Colocated Networks (Shared Data Center)
ASN Name Type Shared Facility
AS205185 Eurofiber Spine 18/19
AS34766 Layer23 BV 17/19
AS8455 atom86 NSP 17/19
AS39686 Eurofiber NSP 16/19
AS64487 Broadcast Hosting Cable/DSL/ISP 13/19
AS57866 Fusix Networks NSP 13/19
AS50917 BACKBONE.direct NSP 13/19
AS39637 ADES NSP 13/19
AS41960 Nextpertise NSP 12/19
AS204401 AFIBER Cable/DSL/ISP 9/19
AS200023 Qonnected Cable/DSL/ISP 9/19
AS174 Cogent Communications, Inc. NSP 8/19
AS207375 Fiber Operator Cable/DSL/ISP 7/19
AS206221 ERA-IX Route Servers Amsterdam Route Server 7/19
AS202932 Quanza NSP 7/19
AS61349 MaxiTEL Telecom B.V. Enterprise 7/19
AS49127 Asimo Networks Network Services 7/19
AS35133 Eranium Transit NSP 7/19
AS60893 Art Of Automation B.V. Cable/DSL/ISP 6/19
AS57112 F2X Operator B.V. Cable/DSL/ISP 6/19
+10 colocated networks
Raw Whois Data
aut-num:        AS51088
as-name:        A2B
org:            ORG-AIB25-RIPE
remarks:        ============================================================
remarks:        AMS-IX peering
remarks:        ============================================================
import:         from AS51088:AS-PEERS-AMSIX action pref=80; accept ANY AND NOT {0.0.0.0/0}
export:         to AS51088:AS-PEERS-AMSIX announce AS51088: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 AS51088: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
import:         from AS50266 action pref=50; accept AS-TMNL
export:         to AS50266 announce AS51088:AS-TMNL-IXP-PEERS
remarks:        ============================================================
remarks:        Transits
remarks:        ============================================================
import:         from AS2914 action pref=100; accept ANY AND NOT {0.0.0.0/0}
export:         to AS2914 announce AS51088:AS-A2B
import:         from AS3257 action pref=100; accept ANY AND NOT {0.0.0.0/0}
export:         to AS3257 announce AS51088:AS-A2B
import:         from AS8455 action pref=100; accept ANY AND NOT {0.0.0.0/0}
export:         to AS8455 announce AS51088:AS-A2B
remarks:        ============================================================
remarks:        Basic Interconnection Requirements
remarks:        ============================================================
remarks:
remarks:        The following is required to share a BGP session with
remarks:        AS51088:
remarks:
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.
remarks:
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         A2B-INTERNET-MNT
created:        2010-05-28T12:48:01Z
last-modified:  2026-01-20T11:49:39Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************




--- ARIN Whois ---


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No match found for a AS51088.


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