AS Number
AS51088
AS Name
A2B
Org Name
A2B IP B.V.
Country
Netherlands
Registry

ripe

RegDate

N/A

Updated

2023-04-24T12:21:05Z

AS51088 Looking Glass
IPv4Prefixes

60

IPv6Prefixes

19

IPv4 NUMs

36,864

IPv6 NUMs(/64)

343,597,514,752

36,864 IPv4 Addresses
CIDR Description IP Num
5.10.192.0/24 A2B IP B.V. 256
5.44.72.0/21 McCloud.nl B.V. 2048
31.41.255.0/24 A2B IP B.V. 256
31.134.200.0/21 A2B IP B.V. 2048
45.85.191.0/24 Inetactief 256
46.175.131.0/24 101010.tv B.V. 256
46.244.0.0/21 A2B-Core 2048
46.244.8.0/22 A2B-Serverius-Shioda 1024
46.244.12.0/23 A2B IP B.V. 512
46.244.14.0/23 A2B-HOT-PINGUIN 512
46.244.16.0/23 A2B-ALK-Cloud2-KPN 512
46.244.20.0/24 A2B IP B.V. 256
46.244.21.0/24 A2B-SHADOWSRV 256
46.244.22.0/24 A2B-SHADOWSRV 256
46.244.23.0/24 A2B-ALK-ISC-SANS 256
46.244.24.0/22 A2B IP B.V. 1024
46.244.28.0/24 A2B IP B.V. 256
46.244.29.0/24 A2B IP B.V. 256
46.244.30.0/24 A2B IP B.V. 256
46.244.31.0/24 A2B IP B.V. 256
46.244.100.0/22 Bombeeck-DH 1024
46.244.104.0/22 A2B IP B.V. 1024
46.244.112.0/23 A2B IP B.V. 512
46.244.120.0/23 A2B IP B.V. 512
46.244.122.0/23 A2B IP B.V. 512
46.244.124.0/23 A2B IP B.V. 512
46.244.126.0/24 A2B IP B.V. 256
46.244.127.0/24 A2B-VilV-A2B-infra 256
62.3.55.0/24 A2B IP B.V. 256
62.68.84.0/24 Eljakim Information Technology B.V. 256
91.213.13.0/24 Easy Networking B.V. 256
92.249.7.0/24 Eljakim Information Technology B.V. 256
93.93.120.0/21 Gemeente Alkmaar 2048
93.190.124.0/24 Infra-Commerce Investments B.V. 256
146.19.97.0/24 A2B IP B.V. 256
178.211.151.0/24 SyncForce B.V. 256
178.249.152.0/21 A2B IP B.V. 2048
185.30.204.0/22 Justspark Managed IT B.V. 1024
185.34.220.0/22 Nebula-Online B.V. 1024
185.37.4.0/23 ATSC-NET 512
185.37.6.0/24 Digifactory-Hosting 256
185.40.254.0/24 De Ruiter Network Company B.V. 256
185.41.124.0/22 mijnpartnergroep.nl VOF 1024
185.44.244.0/22 Luna.nl B.V. 1024
185.46.173.0/24 DC1.AMSTERDAM Cooperatie U.A. 256
185.51.52.0/23 A2B IP B.V. 512
185.63.244.0/22 It's Us B.V. 1024
185.168.142.0/24 Zeta Datacenters B.V. 256
185.205.52.0/22 A2B IP B.V. 1024
185.217.118.0/24 Wild ICT BV 256
185.218.207.0/24 Michel Van Dop trading as "Inetactief" 256
185.225.220.0/22 Luna.nl B.V. 1024
185.240.112.0/22 Luna.nl B.V. 1024
188.95.143.0/24 NETAFFAIRS 256
192.166.96.0/22 Effect ICT Solutions B.V. 1024
193.39.250.0/24 Edward van der Jagt B.V. 256
193.108.238.0/24 Easy Networking B.V. 256
193.110.189.0/24 Infra-Commerce Investments B.V. 256
193.169.108.0/23 RENZO LISSENBERG 512
212.24.126.0/24 A2B IP B.V. 256
CIDR Description IP NUMs(prefix /64)
2001:67c:eb0::/48 Good Cloud BV 65536
2001:67c:1064::/48 Easy Networking B.V. 65536
2a01:77e0::/32 Luna.nl B.V. 4294967296
2a02:1668::/32 A2B IP B.V. 4294967296
2a02:166a::/32 FTTH-range 4294967296
2a02:166b::/32 A2B IP B.V. 4294967296
2a02:2738::/32 Gemeente Alkmaar 4294967296
2a04:6dc0::/32 ATSC_Colo_v6 4294967296
2a05:2900::/29 A2B IP B.V. 34359738368
2a06:2602::/32 A2B IP B.V. 4294967296
2a0a:e80::/29 A2B IP B.V. 34359738368
2a0b:1c0::/29 A2B IP B.V. 34359738368
2a0f:ba00::/29 A2B IP B.V. 34359738368
2a0f:d440::/29 Infra-Commerce Investments B.V. 34359738368
2a12:4180::/29 DC1.AMSTERDAM Cooperatie U.A. 34359738368
2a13:800::/29 A2B IP B.V. 34359738368
2a13:2c00::/29 A2B IP B.V. 34359738368
2a13:3400::/29 A2B IP B.V. 34359738368
2a14:12c0::/32 Eljakim Information Technology B.V. 4294967296
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS49605 DTS-AS - Digital Telecommunication Services S.r.l., IT Italy 9,472 38,654,705,664 IPv4 IPv4 IPv6 IPv6
AS1031 PEER1-1031 - PEER 1031 LLC, US United States 1,280 4,294,967,296 IPv4 IPv4
AS29075 IELO - IELO-LIAZO SERVICES SAS, FR France 35,840 107,374,182,400 IPv4 IPv4 IPv6 IPv6
AS39351 ESAB-AS - 31173 Services AB, SE Sweden 12,032 4,313,841,664 IPv4 IPv4 IPv6 IPv6
AS47147 AS-ANX - ANEXIA Internetdienstleistungs GmbH, AT Austria 1,792 131,072 IPv4 IPv4
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 105,728 351,384,436,736 IPv4 IPv4 IPv6 IPv6
AS56987 AS-ABACLOUDA - ABACLOUDA SAS, FR France 1,024 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS6204 ZET-NET - INTERKVM HOST SRL, RO Romania 768 268,435,456 IPv4 IPv4
AS6939 HURRICANE - Hurricane Electric LLC, US United States 585,216 282,636,229,083,136 IPv4 IPv4 IPv6 IPv6
AS37721 Virtual-Technologies-Solutions-SA - Virtual Technologies & Solutions, BF Burkina Faso 15,872 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS51184 FONIRA - Fonira Telekom GmbH, AT Austria 13,824 111,669,149,696 IPv4 IPv4 IPv6 IPv6
AS61573 Ip Telecom BR, BR Brazil 1,024 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS559 Switch, CH Switzerland 2,184,704 176,093,790,208 IPv4 IPv4 IPv6 IPv6
AS2914 NTT-DATA-2914 - NTT America, Inc., US United States 7,203,840 30,065,164,288 IPv4 IPv4 IPv6 IPv6
AS13030 INIT7 - Init7 (Switzerland) Ltd., CH Switzerland 113,152 107,395,481,600 IPv4 IPv4 IPv6 IPv6
AS37468 ANGOLA-CABLES - Angola Cables, AO Angola 10,496 42,949,672,960 IPv4 IPv4
AS6057 Administracion Nacional de Telecomunicaciones, UY Uruguay 2,156,032 68,719,607,808 IPv4 IPv4 IPv6 IPv6
AS15605 CONNESI - Connesi s.p.a., IT Italy 20,992 17,179,869,184 IPv4 IPv4 IPv6 IPv6
AS6461 ZAYO-6461 - Zayo Bandwidth, US United States 1,662,208 17,717,198,848 IPv4 IPv4 IPv6 IPv6
AS6777 AMS-IX-RS - Amsterdam Internet Exchange B.V., NL Netherlands 0 0 IPv4 IPv4 IPv6 IPv6
AS12779 ITGATE - IT.Gate S.p.A., IT Italy 46,080 42,949,804,032 IPv4 IPv4 IPv6 IPv6
AS30781 JAGUAR-AS - Free Pro SAS, FR France 117,504 133,144,051,712 IPv4 IPv4
AS207176 OPENFIBER - OPENFIBER B.V., NL Netherlands 6,144 4,294,967,296 IPv4 IPv4
AS3399 OBE-NET - Obenet AB, SE Sweden 16,128 38,654,771,200 IPv4 IPv4 IPv6 IPv6
AS25091 IP-Max - IP-Max SA, CH Switzerland 15,104 68,719,607,808 IPv4 IPv4 IPv6 IPv6
AS3303 SWISSCOM - Swisscom (Schweiz) AG, CH Switzerland 3,553,792 204,347,408,384 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20,992 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS34927 iFog-GmbH - iFog GmbH, CH Switzerland 8,448 279,248,896 IPv4 IPv4
AS48362 TKSWF-AS - Stadtwerke Feldkirch, AT Austria 7,680 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS61568 ALOO TELECOM - FSF TECNOLOGIA SA, BR Brazil 12,800 4,294,967,296 IPv4 IPv4
AS12637 SEEWEB - SEEWEB s.r.l., IT Italy 83,456 197,568,495,616 IPv4 IPv4 IPv6 IPv6
AS14840 BR.Digital Provider, BR Brazil 70,912 14,010,220,544 IPv4 IPv4 IPv6 IPv6
AS41327 FIBERTELECOM-AS - Fiber Telecom S.p.A., IT Italy 7,168 68,719,476,736 IPv4 IPv4 IPv6 IPv6
AS1764 NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT Austria 85,760 274,878,169,088 IPv4 IPv4 IPv6 IPv6
AS4455 BSO - IX Reach Ltd, GB United Kingdom 55,808 12,884,967,424 IPv4 IPv4
AS35280 F5 - F5 Networks SARL, FR France 53,760 81,604,378,624 IPv4 IPv4 IPv6 IPv6
AS37739 Abantu-Cloud - Abantu Cloud Africa (Pty) Ltd, ZA South Africa 3,328 4,563,402,752 IPv6 IPv6
AS4230 CLARO S.A., BR Brazil 5,155,584 21,475,098,624 IPv4 IPv4
AS13237 LAMBDANET-AS - euNetworks GmbH, DE Germany 570,880 107,374,182,400 IPv4 IPv4 IPv6 IPv6
AS20932 SIG-ST - Services Industriels de Geneve, CH Switzerland 9,472 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS47160 MOJI - MOJI SAS, FR France 5,376 34,393,292,800 IPv4 IPv4 IPv6 IPv6
AS57463 NetIX - NetIX Communications JSC, BG Bulgaria 256 0 IPv4 IPv4 IPv6 IPv6
AS209823 ENKI-AS - Enki Multimedia EURL, FR France 768 4,295,360,512 IPv4 IPv4 IPv6 IPv6
AS5405 INTERDOTLINK - Inter.link GmbH, DE Germany 2,048 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS39120 CONVERGENZE-AS - Convergenze S.p.A., IT Italy 43,520 17,179,869,184 IPv4 IPv4
AS9930 TTNET-MY - TT DOTCOM SDN BHD, MY Malaysia 741,888 4,295,098,368 IPv4 IPv4 IPv6 IPv6
AS35360 GARGUNET - Frederic Gargula, CH Switzerland 1,024 34,359,738,368 IPv4 IPv4
AS3257 GTT-BACKBONE - GTT Communications Inc., US United States 8,635,904 841,814,704,128 IPv4 IPv4 IPv6 IPv6
AS6667 EUNET-FINLAND - Elisa Oyj, FI Finland 2,560 4,294,967,296 IPv4 IPv4
AS29169 GANDI-AS - GANDI SAS, FR France 31,744 4,294,967,296 IPv4 IPv4
AS34019 HIVANE - Hivane Association, FR France 2,816 1,245,184 IPv4 IPv4 IPv6 IPv6
AS34177 CELESTE-AS - CELESTE SAS, FR France 289,792 98,784,247,808 IPv4 IPv4
AS37497 Network-Platforms - Network Platforms (PTY) LTD, ZA South Africa 14,592 4,294,967,296 IPv4 IPv4
AS56911 ASN-WARIAN - Warian S.R.L., IT Italy 14,848 9,395,765,248 IPv4 IPv4
AS60602 INOVARE-AS - Inovare-Prim SRL, MD Moldova 3,584 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 99,328 77,403,586,560 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS39855 MOD-EU - Mod Mission Critical LLC, US United States 138,240 393,216 IPv4 IPv4 IPv6 IPv6
AS42703 cloudiction - ICT Combinatie B.V., NL Netherlands 512 0 IPv4 IPv4
AS50119 scc - Smith Computer Centrum Computers BV, NL Netherlands 256 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS52102 TRIBION - Tribion B.V., NL Netherlands 2,560 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS60479 EXCL-AS - Exclusief.net BV, NL Netherlands 1,024 0 IPv4 IPv4
AS973 REVIVE-IT-NETWORK - Revive IT Solutions LLC, US United States 2,816 0 IPv4 IPv4
AS52199 ARKIN - Stichting Arkin, NL Netherlands 256 0 IPv4 IPv4
AS60131 HIGH5-NL - High5! B.V., NL Netherlands 5,632 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS214423 MSI-AS - Micro-Star Netherlands Holding B.V., NL Netherlands 256 65,536 IPv4 IPv4 IPv6 IPv6
AS399810 LAER-AS-AMS1 - UnitedLayer, LLC, US United States 256 65,536 IPv4 IPv4 IPv6 IPv6
AS24642 NL-CAVEO - Caveo Internet BV, NL Netherlands 4,608 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS31019 MEANIE - Paulus M. Hoogsteder, NL Netherlands 512 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS199670 DNS-ANYCAST - DNS-Belgium VZW, BE Belgium 1,024 262,144 IPv4 IPv4 IPv6 IPv6
AS201995 bre-efx - EINDHOVEN FIBER EXCHANGE B.V., NL Netherlands 256 0 IPv4 IPv4
AS213577 monta_services - Monta Services BV, NL Netherlands 1,024 0 IPv4 IPv4
AS2914 NTT-DATA-2914 - NTT America, Inc., US United States 7,203,840 30,065,164,288 IPv4 IPv4
AS57129 gidpro - GidPro BV, NL Netherlands 2,048 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS60358 McCloud - McCloud.nl B.V., NL Netherlands 256 0 IPv4 IPv4
AS210449 SKYLARNET-NL - SkylarNET B.V, NL Netherlands 512 68,719,476,736 IPv4 IPv4 IPv6 IPv6
AS213773 BLUEM-AS - Bluem B.V., NL Netherlands 256 0 IPv4 IPv4
AS3257 GTT-BACKBONE - GTT Communications Inc., US United States 8,635,904 841,814,704,128 IPv4 IPv4
AS8298 IPNG - IPng Networks GmbH, CH Switzerland 512 34,359,803,904 IPv4 IPv4 IPv6 IPv6
AS15562 SNIJDERS - Job Snijders, NL Netherlands 67,136 458,752 IPv4 IPv4 IPv6 IPv6
AS35027 ASN-SEVENP - SEVENP B.V., NL Netherlands 768 0 IPv4 IPv4
AS50559 DIVD - Stichting Dutch Institute for Vulnerability Disclosure, NL Netherlands 256 0 IPv4 IPv4
AS64404 EVENTINFRA-AS - Stichting EventInfra, NL Netherlands 4,096 4,295,032,832 IPv4 IPv4 IPv6 IPv6
AS202656 XServerCloud - Ivanov Vitaliy Sergeevich, UA Ukraine 113,408 196,608 IPv4 IPv4 IPv6 IPv6
AS214988 solit - McCloud.nl B.V., NL Netherlands 1,024 0 IPv4 IPv4
AS12902 LUNA - Luna.nl B.V., NL Netherlands 10,240 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS20953 INFONL-AS - Info.nl Holding B.V., NL Netherlands 4,352 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS35421 dmp - Pink Elephant B.V., NL Netherlands 1,024 0 IPv4 IPv4
AS205668 GREENMINIHOST - Green Mini host BV, NL Netherlands 4,096 12,884,901,888 IPv4 IPv4 IPv6 IPv6
as-block:       AS50893 - AS51311
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:        2024-12-10T14:54:30Z
last-modified:  2024-12-10T14:54:30Z
source:         RIPE



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
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:        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:  2023-04-24T12:21:05Z
source:         RIPE

organisation:   ORG-AIB25-RIPE
org-name:       A2B IP B.V.
country:        NL
org-type:       LIR
address:        Science Park 402
address:        1098 XH
address:        Amsterdam
address:        NETHERLANDS
phone:          +31859020410
e-mail:         [email protected]
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:        2021-08-13T08:11:29Z
last-modified:  2025-05-26T12:52:35Z
source:         RIPE

role:           A2B Internet Role-Object
address:        Spinnekop 2
address:        NL-1444 GN Purmerend
address:        The Netherlands
phone:          +31 85 902 0410
remarks:        ------------------------------------------------
remarks:        abuse complaints ONLY to [email protected] please
remarks:        provide as much details and include full headers
remarks:        and/or logfiles.
remarks:        Peering questions / requests to [email protected]
remarks:        Network questions / issues to [email protected]
remarks:        The helpdesk can be reached at [email protected]
remarks:        http://www.a2b-internet.com/
remarks:        ------------------------------------------------
admin-c:        lauw42
tech-c:         DDW67-RIPE
tech-c:         lauw42
abuse-mailbox:  [email protected]
nic-hdl:        AS51088-RIPE
mnt-by:         A2B-INTERNET-MNT
e-mail:         [email protected]
notify:         [email protected]
created:        2010-05-28T17:13:29Z
last-modified:  2025-02-06T12:13:49Z
source:         RIPE