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Data as of Nov 3, 2026

91.124.55.0/24

No anonymizer space · no proxy exits in 30 days

XTDEF Limited · space held by JSC "Ukrtelecom"

Announcement
this exact prefix
RPKI valid
Announced by
AS142561
Type
Unknown
Risk
40 / 100 · Medium
Leased space · Recently moved
Recent change
New origin Jun 2026
from AS20473 The Constant Company, LLC
IPv4 market

Path

Announced by AS142561 since Jun 2026 · 5 mo ago
1 · Holder
JSC "Ukrtelecom"
record created Oct 6, 2006
2 · Leased from
IPXO
for its owner InterLIR
3 · Announced by
AS142561 XTDEF Limited
since Jun 2026 · 5 mo ago
4 · Use
Unknown

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

91.124.55.0/24

From the registry to its use

  1. Oct 6, 2006
    Registry record
    JSC "Ukrtelecom"
    ALLOCATED PA
    91.124.0.0/16
  2. Jan 12, 2024
    Reallocated
    JSC "Ukrtelecom"
    SUB-ALLOCATED PA
    91.124.0.0/17
  3. Mar 18, 2024– Jun 28, 2025
    Announced
    AS2914 NTT America, Inc.
    Internet provider
  4. Jul 11, 2025– Dec 13, 2025
    Announced
    AS9304 HGC Global Communications Limited
    Internet provider
  5. Dec 26, 2025– Jan 6, 2026
    Announced
    AS203057
  6. Mar 20, 2026– Mar 31, 2026
    Announced
    AS152599 YUT-IIG Global Transit Network
    Internet provider
  7. Apr 25, 2026– May 30, 2026
    Announced
    AS20473 The Constant Company, LLC
    Hosting
  8. Jun 11, 2026
    Assigned
    XTDef Limited
    ASSIGNED PA
    91.124.55.0/24
  9. Jun 11, 2026
    Route object
    IPXO
    RIPE route object for AS142561 XTDEF Limited, maintainer NETUTILS-MNT
  10. Jun 11, 2026
    Route object
    IPXO
    RADB route object for AS142561 XTDEF Limited, maintainer MAINT-AS834
  11. Jun 12, 2026– today
    Announced
    AS142561 XTDEF Limited
    Hosting
  12. today
    Leased from
    IPXO
    IP broker
  13. today
    Leased from
    InterLIR
    Lessor

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
91.124.0.0/1665,536UA-UKRTELECOM-20061006JSC "Ukrtelecom" (ORG-USTC1-RIPE) · UAALLOCATED PAOct 6, 2006[email protected]
└ 91.124.0.0/1732,768IPXO-91-124-0JSC "Ukrtelecom" (ORG-USTC1-RIPE) · UASUB-ALLOCATED PAJan 12, 2024[email protected]
└ 91.124.55.0/24256NET-91-124-55-0-24XTDef Limited (ORG-XL122-RIPE) · HKASSIGNED PAJun 11, 2026[email protected]

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
JSC "Ukrtelecom"
Handle
ORG-USTC1-RIPE
Range
91.124.0.0/16
Registration type
ALLOCATED PA
Record created
Oct 6, 2006
Origin network

AS142561

US
Name
XTDEF Limited
Type
Hosting
Registered
Jul 2, 2021
Domain
xtdef.com
Website
xtdef.com
Industry
Hosting and Cloud Provider
Spamhaus ASN-DROP
not listed