Data as of Nov 11, 2026

166.1.139.0/24

No anonymizer space · no proxy exits in 30 days

Fastnet Data Inc · space held by Ace Data Centers, Inc.

Announcement
this exact prefix
RPKI valid
Announced by
Type
Hosting
Risk
50 / 100 · Medium
Recently moved
Recent change
New origin Jul 2026
from AS7488 CNServer LLC
registry: reallocated to Internet Utilities NA LLC by Ace Data Centers, Inc., Jun 10, 2026
IPv4 market

Path

Announced by AS8796 since Jul 2026 · 3 mo ago
1 · Holder
record created Jul 10, 2012 · reallocated to Internet Utilities NA LLC Jun 10, 2026
2 · Leased from
3 · Announced by
AS8796 Fastnet Data Inc
since Jul 2026 · 3 mo ago
4 · Use
Hosting

Lineage

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

166.1.139.0/24

From the registry to its use

  1. Jul 10, 2012
    Registry record
    Ace Data Centers, Inc.
    Direct Allocation
    166.0.0.0/15
  2. Mar 12, 2023– Apr 28, 2023
    Announced
    AS397373 H4Y Technologies LLC
    Hosting
  3. Apr 17, 2023– Jun 15, 2023
    Announced
    AS207279 Markahost Telekomunikasyon Ve Ticaret Limited Sirketi
    Hosting
  4. Jun 16, 2023– Sep 7, 2023
    Announced
    AS35913 DediPath
  5. Aug 27, 2023– Sep 19, 2023
    Announced
    AS63018 Dedicated.com
    Hosting
  6. Oct 2, 2023– Oct 25, 2023
    Announced
    AS147186 VCCL Cloud Private Limited
    Hosting
  7. Dec 13, 2023– Jan 17, 2024
    Announced
    AS46475 Limestone Networks, Inc.
    Hosting
  8. Apr 25, 2026– Jun 11, 2026
    Announced
    AS401152 Ace Data Centers II, L.L.C.
    Hosting
  9. Jun 10, 2026
    Reallocated
    Internet Utilities NA LLC
    Reallocated
    166.1.139.0/24
  10. Jun 11, 2026
    Route object
    IPXO
    RADB route object for AS7488 CNServer LLC, maintainer MAINT-AS834
  11. Jun 11, 2026
    Route object
    IPXO
    ARIN route object for AS7488 CNServer LLC, maintainer MNT-DCL-577
  12. Jul 30, 2026– Aug 10, 2026
    Announced
    AS7488 CNServer LLC
    Hosting
  13. Jul 30, 2026– today
    Announced
    AS8796 Fastnet Data Inc
    Hosting
  14. Aug 2, 2026
    Route object
    IPXO
    ARIN route object for AS8796 Fastnet Data Inc, maintainer MNT-DCL-577
  15. Aug 2, 2026
    Route object
    IPXO
    ARIN route object for AS213840 Ddos Protection Ltd, maintainer MNT-DCL-577
  16. Aug 3, 2026
    Route object
    IPXO
    RADB route object for AS8796 Fastnet Data Inc, maintainer MAINT-AS834
  17. Aug 3, 2026
    Route object
    IPXO
    RADB route object for AS213840 Ddos Protection Ltd, maintainer MAINT-AS834
  18. Aug 9, 2026
    Route object
    IPXO
    ARIN route object for AS395886 Kurun Cloud Inc, maintainer MNT-DCL-577
  19. Aug 10, 2026
    Route object
    IPXO
    RADB route object for AS395886 Kurun Cloud Inc, maintainer MAINT-AS834
  20. Sep 24, 2026– Oct 11, 2026
    Announced
    AS213840 Ddos Protection Ltd
    Hosting
  21. today
    Leased from
    Ace Data Centers
    IP broker
  22. today
    Leased from
    IPXO
    IP broker

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
166.0.0.0/15131,072ACE-NETWORK-10Ace Data Centers, Inc. (ADC-96) · USDirect AllocationJul 10, 2012ipabuse@acedatacenter.com
└ 166.1.139.0/24256IPXOIPXO LLC (IL-845) · USReallocatedJun 9, 2026abuse@ipxo.com
└ 166.1.139.0/24256NETUTILSInternet Utilities NA LLC (DCL-577) · USReallocatedJun 10, 2026report@abuseradar.com
└ 166.1.139.0/24256NET-166-1-139-0-24unknownReassignedJun 11, 2026report@abuseradar.com
via IPXO

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Rotating
First seen
Mar 2023
Current origin since
Jul 2026 · 3 mo
Origin networks
10
Last change of origin
Sep 24, 2026
Recorded history

History

Handoffs
9