RDAP / Whois lookup

Look up authoritative registration records for a domain, IP, network prefix or ASN. Subdomains are resolved to their registrable domain automatically.

AS33891

Record foundRIPE NCC

CORE-BACKBONE

RDAP is structured authoritative registration data. Registration records and contacts do not establish current routing, device location or network safety.

Queried at10/15/2026, 20:33:11Local authoritative snapshot

ASN profile Network topology BGP routes

Resource type: Autonomous system
Registry: RIPE NCC
Registration country / region: Not provided by registry
Registration status: Active
Registered at: 9/1/2004, 12:28:10
Last changed: 7/20/2023, 08:19:37

Resource rangeAS33891 – AS33891Autonomous system

Resource records1ASN count

Public contacts6Published by the registry

Registry events2Authoritative change record

Authoritative registration details

Registry handle: AS33891
Name: CORE-BACKBONE
Allocation type: Not provided by registry
Parent handle: Not provided by registry
Whois server: whois.ripe.net
Authoritative RDAP host: rdap.db.ripe.net

Address and number range

Resource range: AS33891 – AS33891
Address family: Not applicable
Resource records: Not applicable

Registration entities and contacts

Only public fields from the authoritative RDAP response are shown. Roles are assigned by the registry.

6 entities

AdministrativeTechnical

ORG-IICG1-RIPECGCR1-RIPE

abuse@core-backbone.com+4991131043200

Core-Backbone GmbH · Deutschherrnstr. 15-19 · 90429 Nürnberg

Registrant

CORE-BACKBONECORE-BACKBONE

Not provided by registry

Registrant

Core-Backbone GmbHORG-IICG1-RIPE

+4991131043200

Deutschherrnstr. 15-19 · 90429 · Nürnberg · GERMANY

Registrant

ORG-NCC1-RIPERIPE-NCC-END-MNT

Not provided by registry

Abuse

Core-Backbone NetmasterCN2660-RIPE

abuse@core-backbone.com

Deutschherrnstr. 15-19 · 90429 Nürnberg · Germany

AdministrativeTechnical

Daniel MareschDM2147-RIPE

+49 911 31043200

Core-Backbone GmbH · Deutschherrnstr. 15-19 · 90429 Nürnberg · Germany

Registration and change events

2 events

Event	Time (UTC)	Actor
Last changed	7/20/2023, 08:19:37	Not provided by registry
Registration	9/1/2004, 12:28:10	Not provided by registry

Terms and remarks

Registry notices are shown verbatim so their authoritative meaning is not altered.

5 notices

Registry noticeCORE-BACKBONE GMBH GLOBAL NETWORK ********************************************* Upstreams: --------------------------------------------- LEVEL3 TELIA Heavy abstraction of accepting routes at peerings as we do peer at many points with many networks and do apply filter with their AS-SET, apply filters for more specific than /24 prefixes, have max-prefix filters applied, but we do not want to maintain always a list here:

FilteredThis output has been filtered.

Whois Inaccuracy ReportingIf you see inaccuracies in the results, please visit:

SourceObjects returned came from source RIPE

Terms and ConditionsThis is the RIPE Database query service. The objects are in RDAP format.

CHA.LA authoritative RDAP snapshotIANA Bootstrap only locates the responsible registration service. Data comes from the corresponding RIR or domain registry and is cached locally by query target.Authoritative source: RIPE NCC · rdap.db.ripe.net