RDAP / Whois lookup

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

31.171.131.0 - 31.171.131.255

Record foundRIPE NCC

NR-CUST-ULTAHOSTASSIGNED PA

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

Queried at10/18/2026, 04:38:28Local authoritative snapshot

BGP routes RPKI check Prefix profile

Resource type: Network prefix
Registry: RIPE NCC
Registration country / region: Netherlands
Registration status: Active
Registered at: 9/25/2024, 20:33:54
Last changed: 10/14/2024, 14:45:57

Resource range31.171.131.0 – 31.171.131.255Network prefix

Resource records1CIDR count

Public contacts3Published by the registry

Registry events2Authoritative change record

Authoritative registration details

Registry handle: 31.171.131.0 - 31.171.131.255
Name: NR-CUST-ULTAHOST
Allocation type: ASSIGNED PA
Parent handle: 31.171.128.0 - 31.171.135.255
Whois server: whois.ripe.net
Authoritative RDAP host: rdap.db.ripe.net

Address and number range

Resource range: 31.171.131.0 – 31.171.131.255
Address family: IPv4
Resource records: 1
CIDR inventory: 31.171.131.0/24

Registration entities and contacts

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

3 entities

Registrant

ORG-NA302-RIPENETROUTING-MNT

Not provided by registry

Registrant

Ultahost, Inc.ORG-UI46-RIPE

Not provided by registry

651 N Broad St. Suite 206. Middletown/Delaware

AdministrativeTechnicalAbuse

Ultahost, Inc.UI48103-RIPE

u-abuse@ultahost.com

651 N Broad St. Suite 206. Middletown/Delaware, USA

Registration and change events

2 events

Event	Time (UTC)	Actor
Last changed	10/14/2024, 14:45:57	Not provided by registry
Registration	9/25/2024, 20:33:54	Not provided by registry

Terms and remarks

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

4 notices

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