AS Number
AS25151
AS Name
CYSO-AS
Org Name
Cyso Group B.V.
Country
Netherlands
Registry

ripe

RegDate

Updated

2018-11-22T15:27:30Z

AS25151 Looking Glass
IPv4Prefixes

22

IPv6Prefixes

4

IPv4 NUMs

15,872

IPv6 NUMs(/64)

38,654,771,200

15,872 IPv4 Addresses
CIDR Description IP Num
2.57.56.0/24
ROA Signed and Valid IRR Valid
Realtime Register B.V. 256
37.46.136.0/21
ROA Signed and Valid IRR Valid
Cyso Group B.V. 2048
37.72.138.0/24
IRR Valid
Harlem Next B.V. 256
45.134.223.0/24
ROA Signed and Valid IRR Valid
Bitmaster Online BV 256
62.129.139.0/24
IRR Valid
HOSTING-NL 256
62.129.149.0/24
IRR Valid
Virtual Access Internet BV 256
80.85.160.0/23
ROA Signed and Valid IRR InValid
HetExtraNet1 512
80.85.161.0/24
ROA Signed and Valid IRR Parent Valid
HetExtraNet1 256
81.24.0.0/22
ROA Signed and Valid IRR Valid
Cyso Group B.V. 1024
81.24.4.0/24
ROA Signed and Valid IRR Parent Valid
FUGA_AMS 256
81.24.4.0/22
ROA Signed and Valid IRR Valid
Cyso Group B.V. 1024
81.24.6.0/23
ROA Signed and Valid IRR Parent Valid
FUGA_AMS 512
81.24.8.0/22
ROA Signed and Valid IRR Valid
Cyso Group B.V. 1024
81.24.9.0/24
ROA Signed and Valid IRR Parent Valid
FUGA_AMS2 256
81.24.10.0/23
ROA Signed and Valid IRR Parent Valid
FUGA_AMS2 512
85.158.200.0/21
ROA Signed and Valid IRR Valid
Cyso Group B.V. 2048
93.94.224.0/21
ROA Signed and Valid IRR Valid
Cyso Group B.V. 2048
109.235.72.0/21
ROA Signed and Valid IRR Valid
Cyso Group B.V. 2048
185.54.112.0/22
ROA Signed and Valid IRR Valid
Cyso Group B.V. 1024
185.78.196.0/22
ROA Signed and Valid IRR Valid
Cyso Group B.V. 1024
185.123.55.0/24
IRR Valid
Bitmaster Online B.V. 256
193.33.220.0/24
ROA Signed and Valid IRR Valid
Ronald Pool is trading as "Video en Media" 256
CIDR Description IP NUMs(prefix /64)
2001:678:c50::/48
ROA Signed and Valid IRR Valid
Realtime Register B.V. 65536
2a01:518::/32
ROA Signed and Valid IRR Valid
Cyso Group B.V. 4294967296
2a01:518:ffff::/48
ROA Signed and Valid IRR Parent Valid
Cyso Group B.V. 65536
2a05:6cc0::/29
ROA Signed and Valid IRR Valid
Cyso Group B.V. 34359738368
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS61568 ALOO TELECOM - FSF TECNOLOGIA SA, BR Brazil 12,544 4,295,032,832 IPv4 IPv4
AS1267 ASN-WINDTRE - WIND TRE S.P.A., IT Italy 7,369,984 2,233,382,993,920 IPv4 IPv4
AS2914 NTT-DATA-2914 - NTT America, Inc., US United States 6,281,984 30,065,295,360 IPv4 IPv4 IPv6 IPv6
AS6777 AMS-IX-RS - Amsterdam Internet Exchange B.V., NL Netherlands 0 0 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
AS53062 GGNET TELECOMUNICACOES LTDA, BR Brazil 28,160 17,196,711,936 IPv4 IPv4
AS64049 RJIPL-SG - Reliance Jio Infocomm Pte.Ltd, SG Singapore 2,048 0 IPv4 IPv4 IPv6 IPv6
AS35280 F5 - F5 Networks SARL, FR France 55,808 81,604,378,624 IPv4 IPv4 IPv6 IPv6
AS12552 GlobalConnect-AS12552 - GlobalConnect AB, SE Sweden 559,872 210,454,380,544 IPv4 IPv4 IPv6 IPv6
AS12779 ITGATE - IT.Gate S.p.A., IT Italy 47,104 42,949,869,568 IPv4 IPv4 IPv6 IPv6
AS15547 NETPLUS - netplus.ch SA, CH Switzerland 135,424 42,949,672,960 IPv4 IPv4 IPv6 IPv6
AS20932 SIG-ST - Services Industriels de Geneve, CH Switzerland 9,472 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS47147 AS-ANX - Anexia Cloud Solutions GmbH, AT Austria 5,888 131,072 IPv4 IPv4
AS200020 NBIP-AS - Stichting NBIP-NaWas, NL Netherlands 512 65,536 IPv4 IPv4 IPv6 IPv6
AS5713 SAIX-NET - Telkom SA Ltd., ZA South Africa 2,245,376 17,592,186,109,952 IPv4 IPv4 IPv6 IPv6
AS15943 WTNET-AS - wilhelm.tel GmbH, DE Germany 354,560 38,654,836,736 IPv4 IPv4
AS30844 LIQUID-AS - Liquid Telecommunications Ltd, GB United Kingdom 370,176 38,654,705,664 IPv4 IPv4
AS37468 ANGOLA-CABLES - Angola Cables, AO Angola 9,472 42,949,672,960 IPv4 IPv4 IPv6 IPv6
AS38082 IIT-TIG-AS-AP - True International Gateway Co., Ltd., TH Thailand 7,168 4,294,967,296 IPv4 IPv4
AS1031 PEER1-1031 - PEER 1031 LLC, US United States 512 4,294,967,299 IPv4 IPv4
AS9930 TTNET-MY - TT DOTCOM SDN BHD, MY Malaysia 741,888 4,295,098,368 IPv4 IPv4 IPv6 IPv6
AS14840 BR.Digital Telecom, BR Brazil 72,960 14,010,613,760 IPv4 IPv4 IPv6 IPv6
AS52320 GlobeNet Cabos Submarinos Colombia, S.A.S., CO Colombia 4,096 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS58511 ANYCAST-GLOBAL-BACKBONE - Anycast Holdings Pty Ltd, AU Australia 22,528 8,589,934,592 IPv4 IPv4 IPv6 IPv6
AS8218 NEO-ASN - Zayo Infrastructure France SA, FR France 47,104 12,884,967,424 IPv4 IPv4 IPv6 IPv6
AS14537 CL-1379-14537 - Continent 8 LLC, US United States 65,536 12,884,901,888 IPv4 IPv4
AS37100 SEACOM-AS - SEACOM Limited, MU Mauritius 1,072,896 12,884,901,888 IPv4 IPv4 IPv6 IPv6
AS6057 Administracion Nacional de Telecomunicaciones, UY Uruguay 2,155,520 68,719,476,736 IPv4 IPv4 IPv6 IPv6
AS29075 IELO - IELO-LIAZO SERVICES SAS, FR France 32,000 107,374,247,936 IPv4 IPv4 IPv6 IPv6
AS48362 TKSWF-AS - Stadtwerke Feldkirch, AT Austria 7,936 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS39351 ESAB-AS - 31173 Services AB, SE Sweden 14,592 12,886,081,536 IPv4 IPv4 IPv6 IPv6
AS49544 i3Dnet - i3D.net B.V, NL Netherlands 116,992 356,753,080,320 IPv4 IPv4 IPv6 IPv6
AS137409 GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU Australia 125,696 77,422,788,610 IPv4 IPv4 IPv6 IPv6
AS9002 RETN-AS - RETN Limited, GB United Kingdom 41,472 4,563,402,752 IPv6 IPv6
AS34927 iFog-GmbH - iFog GmbH, CH Switzerland 9,984 295,370,752 IPv6 IPv6
AS9498 BBIL-AP - Bharti Airtel Limited, IN India 2,276,096 4,299,358,208 IPv4 IPv4 IPv6 IPv6
AS13237 LAMBDANET-AS - euNetworks GmbH, DE Germany 570,368 107,374,182,400 IPv4 IPv4 IPv6 IPv6
AS29169 GANDI-AS - GANDI SAS, FR France 31,744 4,294,967,296 IPv4 IPv4
AS39686 AS-EUROFIBER - Eurofiber Nederland BV, NL Netherlands 210,944 124,571,942,912 IPv4 IPv4
AS41327 FIBERTELECOM-AS - Fiber Telecom S.p.A., IT Italy 7,168 68,719,476,736 IPv4 IPv4
AS1299 TWELVE99 - Arelion Sweden AB, SE Sweden 422,912 77,326,843,904 IPv4 IPv4 IPv6 IPv6
AS18106 VIEWQWEST-SG-AP - Viewqwest Pte Ltd, SG Singapore 53,248 13,153,337,344 IPv4 IPv4 IPv6 IPv6
AS25091 IP-Max - IP-Max SA, CH Switzerland 14,848 68,719,607,808 IPv4 IPv4 IPv6 IPv6
AS5405 INTERDOTLINK - Inter.link GmbH, DE Germany 3,072 34,359,738,368 IPv4 IPv4 IPv6 IPv6
AS60602 INOVARE-AS - Inovare-Prim SRL, MD Moldova 4,096 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS61573 IP TELECOM, BR Brazil 1,024 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS34019 HIVANE - Hivane Association, FR France 2,816 1,245,184 IPv4 IPv4 IPv6 IPv6
AS37497 Network-Platforms - Network Platforms (PTY) LTD, ZA South Africa 6,400 4,294,967,296 IPv4 IPv4
AS49605 DTS-AS - Digital Telecommunication Services S.r.l., IT Italy 9,216 38,654,705,664 IPv4 IPv4 IPv6 IPv6
AS57463 NetIX - NetIX Communications JSC, BG Bulgaria 256 0 IPv6 IPv6
AS7195 EDGEUNO S.A.S, CO Colombia 32,000 4,274,061,312 IPv4 IPv4 IPv6 IPv6
AS15605 CONNESI - Connesi s.p.a., IT Italy 20,992 17,179,869,184 IPv4 IPv4 IPv6 IPv6
AS24940 HETZNER-AS - Hetzner Online GmbH, DE Germany 3,174,400 77,309,476,864 IPv4 IPv4 IPv6 IPv6
AS999 CORIX-999 - CORIX NETWORKS, US United States 70,144 4,295,032,834 IPv4 IPv4
AS12637 SEEWEB - SEEWEB s.r.l., IT Italy 82,176 188,978,561,024 IPv4 IPv4 IPv6 IPv6
AS34177 CELESTE-AS - Celeste SAS, FR France 229,632 98,784,247,808 IPv4 IPv4 IPv6 IPv6
AS51184 FONIRA - Fonira Telekom GmbH, AT Austria 13,824 111,669,149,696 IPv4 IPv4 IPv6 IPv6
AS1764 NEXTLAYER-AS - Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH, AT Austria 84,736 236,223,463,424 IPv4 IPv4 IPv6 IPv6
AS33891 CORE-BACKBONE - Core-Backbone GmbH, DE Germany 0 0 IPv4 IPv4 IPv6 IPv6
AS39120 CONVERGENZE-AS - Convergenze S.p.A., IT Italy 42,496 17,179,869,184 IPv4 IPv4
AS6663 TTI-NET - Euroweb Romania S.R.L., RO Romania 39,680 6,442,450,944 IPv4 IPv4 IPv6 IPv6
AS24482 SGGS-AS-AP - SG.GS, SG Singapore 20,992 4,294,967,296 IPv4 IPv4 IPv6 IPv6
AS559 Switch, CH Switzerland 2,184,960 176,093,790,208 IPv4 IPv4 IPv6 IPv6
AS1000 LINK-AMERICAN - LINK AMERICAN, US United States 256 0 IPv4 IPv4
AS3356 LEVEL3 - Level 3 Parent, LLC, US United States 28,747,008 81,609,621,504 IPv4 IPv4 IPv6 IPv6
AS Description Country/Region IPv4 NUMs IPv6 NUMs IPv4 IPv6
AS15535 VIRTUALXS-AS - Virtual Access Internet BV, NL Netherlands 2,048 0 IPv4 IPv4
AS210728 CYSO-AS-DE - Cyso Group B.V., NL Netherlands 768 4,294,967,296 IPv4 IPv4

Peers at this Exchange Point

Country/Region IX IPv4 IPv6 Port Speed Updated
Netherlands AMS-IX - Amsterdam Internet Exchange 80.249.209.155 2001:7f8:1::a502:5151:1 10 Gbps 2026-03-25 23:34:41

Private Peering Facilities

Country/Region Name City Website Updated
Global Switch Amsterdam Amsterdam https://www.globalswitch.com/locations/amsterdam 2016-03-14 21:27:01
Equinix AM1/AM2 - Amsterdam, Luttenbergweg Amsterdam https://www.equinix.com/locations/netherlands-colocation/amsterdam-data-centers/am1/ 2016-03-14 21:27:01
as-block:       AS24988 - AS25162
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:        2018-11-22T15:27:30Z
last-modified:  2018-11-22T15:27:30Z
source:         RIPE



aut-num:        AS25151
org:            ORG-CMH1-RIPE
as-name:        CYSO-AS
remarks:        AMS-ix route server
import:         from AS6777 accept ANY
export:         to AS6777 action community .= {6777:6777}; announce AS-CYSO
remarks:        NTT
import:         from AS2914 action pref=90; accept ANY
export:         to AS2914 announce AS-CYSO
remarks:        Telia
import:         from AS1299 action pref=90; accept ANY
export:         to AS1299 announce AS-CYSO
remarks:        Level3
import:         from AS3356 action pref=90; accept ANY
export:         to AS3356 announce AS-CYSO
remarks:        Nawas
import:         from AS200020 action pref=90; accept ANY
export:         to AS200020 announce AS-CYSO
remarks:        CYSO-FRA
import:         from AS210728 accept ANY
export:         to AS210728 announce ANY
admin-c:        CYSO-RIPE
tech-c:         CYSO-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
remarks:        --
remarks:        If you want to peer with us, mail peering@cyso.net
remarks:        We do not filter our peers unless they screw up.
remarks:        We use maximum-prefix filters on all peers.
remarks:        --
mnt-by:         CYSO-MNT
created:        2002-09-16T13:40:41Z
last-modified:  2022-05-10T15:12:16Z
source:         RIPE

organisation:   ORG-CMH1-RIPE
org-name:       Cyso Group B.V.
country:        NL
reg-nr:         33287475
org-type:       LIR
address:        Wognumsebuurt 3
address:        1817 BH
address:        Alkmaar
address:        NETHERLANDS
phone:          +31 72 751 3400
fax-no:         +31 72 751 3401
e-mail:         noc@cyso.net
admin-c:        CYSO-RIPE
admin-c:        SCAW666-RIPE
admin-c:        TSW-RIPE
abuse-c:        CYSO-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        CYSO-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         CYSO-MNT
created:        2005-01-13T06:11:10Z
last-modified:  2026-05-13T07:18:37Z
source:         RIPE

role:           Cyso Hosting B.V. Technical Role Account
address:        Cyso Managed Hosting B.V.
address:        Wognumsebuurt 3
address:        1817 BH Alkmaar
address:        The Netherlands
phone:          +31 72 7513400
fax-no:         +31 72 7513401
e-mail:         noc@cyso.net
admin-c:        TSW-RIPE
admin-c:        SCAW666-RIPE
admin-c:        PIJN1-RIPE
tech-c:         TSW-RIPE
tech-c:         PIJN1-RIPE
tech-c:         SCAW666-RIPE
nic-hdl:        CYSO-RIPE
mnt-by:         CYSO-MNT
abuse-mailbox:  abuse@cyso.net
remarks:        --
remarks:        Abuse issues : abuse@cyso.net
remarks:        Other technical issues : noc@cyso.net
remarks:        --
created:        2002-08-05T11:12:02Z
last-modified:  2019-11-04T12:45:28Z
source:         RIPE