HomeASN LookupAS33891

AS33891 CORE-BACKBONE Core-Backbone GmbH

🇩🇪

Org handle: ORG-IICG1-RIPE

CORE-BACKBONE GMBH GLOBAL NETWORK

RIPE NCCallocatedASPA Published
Announced Prefixes (BGP)
0total
0 IPv40 IPv6
IPv4 Addresses
Allocated (RIR)0
Announced (BGP)0
IPv6 Addresses
Allocated (RIR)0
Announced (BGP)0
Prefix Limit (IPv4)
10
Prefix Limit (IPv6)
5
Country
🇩🇪 DE
RIR
RIPE NCC
Status
allocated
Allocated
2004-09-01
No prefixes found for this ASN.

Upstream Providers(4)

ASNName
AS1299🇸🇪TWELVE99 Arelion Sweden AB
AS3257🇺🇸GTT-BACKBONE GTT Communications Inc.
AS3320🇩🇪DTAG Deutsche Telekom AG
AS3356🇺🇸LEVEL3 - Level 3 Parent, LLC

Downstream Customers(36)

ASNName
AS3303🇨🇭SWISSCOM Swisscom (Schweiz) AG
AS4777🇯🇵APNIC-COLO - Asia Pacific Network Information Centre
AS5539🇩🇪SPACENET SpaceNet GmbH
AS8412🇦🇹TMA T-Mobile Austria GmbH
AS15945🇩🇪PfalzKom-Net PFALZKOM GmbH
AS18001🇱🇰DIALOG-AS - Dialog Axiata PLC.
AS24940🇩🇪HETZNER-AS Hetzner Online GmbH
AS29670🇩🇪IN-BERLIN-AS Individual Network Berlin ("IN-Berlin") e.V.
AS39040🇨🇭NTSWorkspaceAG-AS39040 NTS workspace AG
AS39878🇦🇹RAUTER-AS Peter Rauter GmbH
AS42184🇩🇪AS-TKRZ TKRZ Stadtwerke GmbH
AS51191🇩🇪XIRRA Core-Backbone GmbH
AS51202🇩🇪NUXOA NUXOA GmbH
AS51402🇩🇪COM-IN COM-IN Telekommunikations GmbH
AS51839🇩🇪QSKILLS qSkills GmbH & Co. KG
AS55569🇯🇵CRITEO-AS-AP - Criteo APAC
AS57575🇩🇪NETM-AS NETMOUNTAINS Group GmbH
AS60574🇷🇴cc-netz-as01 Christian clos
AS61098🇨🇭exoscale Akenes SA
AS61438🇦🇹IP-IT-AS ip-it consult GmbH
AS62193🇩🇪BCIX-AS BCIX Management GmbH
AS131219🇸🇬ISPL-AS-AP - Indosat Singapore Pte. Ltd.
AS131267🇱🇦UNITEL-LA - Star Telecom
AS131314🇭🇰CBC-AS-AP - CBC Tech International Limited
AS142631🇲🇾METRO-AS-AP - Metro Lightspeed
AS196954🇩🇪epcan Epcan GmbH
AS200970🇦🇹RIEPERT Riepert Informationstechnologie GmbH
AS201011🇩🇪CORE-BACKBONE Core-Backbone GmbH
AS204053🇩🇪ADESTIS-NET ADESTIS GmbH
AS205071🇷🇴cc-netz-as03 Christian clos
AS205614🇩🇪medialine-eurotrade-ag Medialine EuroTrade AG
AS207234🇩🇪AS-MBN Mobile Breitbandnetze GmbH
AS208208🇩🇪CYBERSE Marco Lingl trading as Cyberse GmbH & Co. KG
AS211417🇩🇪ERNW-GMBH ERNW Enno Rey Netzwerke GmbH
AS212341🇩🇪CSN-Datacenters Stephan Rakowski, trading as CSN-Solutions GmbH
AS212522🇩🇪SIX-AS ISP Service eG

BGP Neighbours

(seen in AS paths)

Upstreams (2)

Networks AS33891 hands its own prefixes to: transit providers, or peers at an exchange.

  • AS13004SOX Serbian Open Exchange DOO3
  • AS56655GIGAHOST1

Downstreams (100 of 753)

Networks whose own prefixes AS33891 passes on: usually its customers.

  • AS8075Microsoft Corporation1,194
  • AS6079RCN330
  • AS3320DTAG Deutsche Telekom313
  • AS4800PT Aplikanusa Lintasarta300
  • AS12389ROSTELECOM PJSC Rostelecom291
  • AS16509Amazon.Com259
  • AS7029Windstream Communications256
  • AS6939Hurricane Electric231
  • AS28458IENTC S DE RL DE CV157
  • AS17557Pakistan Telecommunication Company Limited150
  • AS3223VOXILITY LLP132
  • AS3741Dimension Data Dimension Data131
  • AS9009M247 Europe131
  • AS20940AKAMAI ASN1 Akamai International B.V128
  • AS19229Ensono LP126
  • AS9318SK Broadband121
  • AS50673Serverius Holding B.V114
  • AS20546SOPRADO ANY SOPRADO104
  • AS680DFN Verein Zur Foerderung Eines Deutschen Forschungsnetzes E.V94
  • AS8551BEZEQ INTERNATIONAL Bezeq International94
  • AS6461Zayo Bandwidth93
  • AS2516KDDI CORPORATION84
  • AS28198SEMPRE TELECOMUNICACOES LTDA80
  • AS31133MF MGSM PJSC MegaFon78
  • AS5089NTL Virgin Media Limited75
  • AS23764CTGNet74
  • AS8560IONOS SE71
  • AS7642DHIVEHI RAAJJEYGE GULHUN PLC70
  • AS36351IBM Cloud67
  • AS48314IP PROJECTS Michael Sebastian Schinzel Trading IP Projects & . KG67
  • AS20473The Constant Company60
  • AS4788TM TECHNOLOGY SERVICES SDN. BHD58
  • AS2134GSVNET Santander Global Technology And Operations, S.L57
  • AS4837CHINA UNICOM China169 Backbone56
  • AS56630MELBICOM EU Melbikomas UAB56
  • AS8881VERSATEL 1&1 Versatel51
  • AS29286SKYLOGIC S.P.A51
  • AS9605NTT DOCOMO50
  • AS201011CORE BACKBONE Core Backbone50
  • AS197637ROPA48
  • AS60068CDN77 Datacamp Limited47
  • AS25369BANDWIDTH Hydra Communications44
  • AS1267ASN WINDTRE WIND TRE S.P.A43
  • AS16347INHERENT ADISTA SAS43
  • AS9119SOFTNET D.O.O41
  • AS9299Philippine Long Distance Telephone Company41
  • AS35048BITERIKA Group40
  • AS7049Silica Networks Argentina S.A38
  • AS35753ITC Etihad Salam Telecom CJSC38
  • AS396356Latitude.Sh37
  • AS31103KEYWEB36
  • AS57344TELEHOUSE EAD36
  • AS9541Cyber Internet Services (Pvt)34
  • AS43641Sollutium NL SOLLUTIUM EU Sp Z.O.O34
  • AS50010Nawras Omani Qatari Telecommunication Company SAOC34
  • AS37009Mobile Telecommunications, . MTC Mobile Telecommunications33
  • AS15802DU AS1 Emirates Integrated Telecommunications Company PJSC32
  • AS28173Dinamica Telecomunicacoes Ltda31
  • AS37148Globacom Limited Globacom Limited31
  • AS200845AVATEL TELECOM31
  • AS6697BELPAK Republican Unitary Telecommunication Enterprise Beltelecom30
  • AS132203Tencent Building, Kejizhongyi Avenue30
  • AS9498BHARTI Airtel29
  • AS62044ZSCALER EMEA Zscaler Switzerland29
  • AS9063SAARGATE VSE NET28
  • AS11722Slic Network Solutions28
  • AS14340Salesforce.Com28
  • AS1273IDDQD27
  • AS37721Virtual Technologies & Solutions Virtual Technologies & Solutions27
  • AS1828Unitas Global26
  • AS13335Cloudflare26
  • AS19551Incapsula26
  • AS31898Oracle Corporation26
  • AS39737Prime Telecom Prime Telecom26
  • AS4628Pacific Internet Pte25
  • AS4761INDOSAT Internet Network Provider25
  • AS13194BITE UAB "Bite Lietuva"25
  • AS14593Space Exploration Technologies Corporation25
  • AS12491GILAT TELECOM Gilat Telecom24
  • AS47692NESSUS24
  • AS213281GREENFIBER Internet & Dienste24
  • AS8339KABSI Kabelplus23
  • AS15598IPX AS15598 NorthC Deutschland23
  • AS49910LUDIGSSOFT Management Trading Ludigssoft RZ & . KG23
  • AS57395HARTL EDV Synaforce23
  • AS210258Wildanet23
  • AS216071VDSINA SERVERS TECH FZCO23
  • AS47172Greenhost BV22
  • AS48635CLDIN NL Your Hosting B.V22
  • AS5603SIOL NET Telekom Slovenije, D.D21
  • AS6663TTI NET Euroweb Romania S.R.L21
  • AS15685CASABLANCA INT A.S21
  • AS20860IOMART CLOUD SERVICES LIMITED21
  • AS36692Cisco OpenDNS21
  • AS39257LUMi21
  • AS41998NetComBW NetCom BW21
  • AS200735MUENET MN Glasfaser Trading As MUENET & . KG21
  • AS1836GREEN Green.Ch20
  • AS14537Continent 820
  • AS34177CELESTE SAS20

Other adjacent networks (50 of 248)

Adjacent to AS33891 in the transit part of AS paths: peers, providers or customers.

  • AS64049Reliance Jio Infocomm Pte Singapore2,822
  • AS7473Singapore Telecommunications1,566
  • AS4651National Telecom Public Company Limited1,355
  • AS1299TWELVE99 Arelion Sweden AB1,063
  • AS37468Angola Cables Angola Cables603
  • AS39392SuperNetwork SH.Cz S.R.O591
  • AS6910DIGI BORDER DIGI ROMANIA S.A432
  • AS20764RASCOM CJSC RASCOM424
  • AS21320GEANT IAS VRF GEANT Vereniging369
  • AS41327FIBERTELECOM Fiber Telecom S.P.A321
  • AS17676SoftBank283
  • AS8359MTS PJSC241
  • AS55818MC IX Matrix Internet Exchange RS221
  • AS48237MOBILY Etihad Etisalat, A Joint Stock Company196
  • AS9050RTD Orange Romania S.A172
  • AS34309LINK11167
  • AS3303SWISSCOM (Schweiz)160
  • AS12430VODAFONE ES VODAFONE ESPANA S.A.U144
  • AS45489Sri Lanka Telecom PLC, GLobal Peering136
  • AS6797GLOBALCONNECT NET GlobalConnect AB125
  • AS20562OPEN PEERING Broadband Hosting B.V121
  • AS42708GLESYS AB99
  • AS2603NORDUNET97
  • AS8764Telia Lietuva Telia Lietuva, AB91
  • AS61599EAI TELECOMUNICACOES LTDA91
  • AS24482SG.GS88
  • AS3257GTT BACKBONE GTT Communications83
  • AS201054EPIX PolMix Stowarzyszenie E Poludnie82
  • AS17984PCCW Global (HK)81
  • AS9136WOBCOM65
  • AS8932UCOMINT Ucom CJSC55
  • AS29632NASSIST Netassist International EOOD55
  • AS44592SkyLink Data Center BV55
  • AS41692OPENCARRIER EG54
  • AS47147ANX Anexia Cloud Solutions50
  • AS50263IXP 1 IX EU A Systems Sp. Z O.O48
  • AS9002RETN Limited45
  • AS6204ZET NET INTERKVM HOST44
  • AS2518BIGLOBE38
  • AS200612GulfBridgeInternational Gulf Bridge International38
  • AS55329Telcotech36
  • AS197563GNMUA "GLOBALNET UA"36
  • AS39948612651980 CANADA33
  • AS15958CETIN Doo CETIN . Belgrade32
  • AS216265ARISTO NET ARISTO NETWORKS31
  • AS267613ELETRONET S.A31
  • AS3292TDC Holding A/S30
  • AS132876Symphony Communication (Thailand) PCL30
  • AS7843Charter Communications29
  • AS50606VIRTUAOPERATOR Horyzont Technologie Internetowe Sp.Z.O.O29
ASPA
Published4 upstreams, 36 downstreams
Authorized Upstream Providers
AS1299AS3257AS3320AS3356
Expires 2026-10-27
Listed as Upstream Provider by
36 ASNs
View full ASPA details →
Abuse Contact
External Links
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Learn more

API
Open
GEThttps://api.ipctl.io/v1/asn/33891

Returns ASN details, announced prefixes, and BGP routing data.

curl -s "https://api.ipctl.io/v1/asn/33891" | jq