Data as of Nov 10, 2026

149.87.136.0/23

Anonymizer · ISP proxy

SkyQuantum Internet Service · space held by Cogent Communications, LLC

Announcement
this exact prefix
No RPKI
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
record created Jan 28, 1992 · reallocated to Wisdom Cloud Internet Technology Pte. Ltd Jan 5, 2024
2 · Leased from
its owner, directly
3 · Announced by
AS55201 SkyQuantum Internet Service
since Aug 2025 · 15 mo ago
4 · Use
Proxy providersnamed SkyQuantum
ISP proxy

Operators, sellers and brokers

Proxy providers

NameParentIn 149.87.136.0/23/24s
SkyQuantum
512100%
2
Leased from

Owners leasing their own space

NameIn 149.87.136.0/23/24s
Cogent Communications, LLC
512100%
2

Lineage

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

149.87.136.0/23

From the registry to its use

  1. Jan 28, 1992
    Registry record
    Cogent Communications, LLC
    Direct Allocation (legacy, pre-1997)
    149.87.0.0/16
  2. Jan 5, 2024
    Reallocated
    Wisdom Cloud Internet Technology Pte. Ltd
    Reallocated
    149.87.128.0/18
  3. Mar 30, 2024– Oct 14, 2026
    Announced
    AS197537 Wisdom Cloud Internet Technology Pte. Ltd.
    as part of 149.87.128.0/18
    149.87.128.0/18
  4. Oct 8, 2024– Aug 27, 2025
    Announced
    AS7018 AT&T Enterprises, LLC
    Internet provider
  5. Oct 11, 2024
    Assigned
    SkyQuantum Internet Service
    Reassigned
    149.87.136.0/23
  6. Dec 17, 2024
    Route object
    AS7018 AT&T Enterprises, LLC
    RADB route object for AS7018 AT&T Enterprises, LLC, maintainer MAINT-AS55201
  7. Mar 18, 2025
    Route object
    AS55201 SkyQuantum Internet Service
    RADB route object for AS55201 SkyQuantum Internet Service, maintainer MAINT-AS55201
    149.87.136.0/24
  8. Mar 18, 2025
    Route object
    AS55201 SkyQuantum Internet Service
    RADB route object for AS55201 SkyQuantum Internet Service, maintainer MAINT-AS55201
    149.87.137.0/24
  9. Aug 16, 2025– today
    Announced
    AS55201 SkyQuantum Internet Service
    Hosting
  10. Aug 21, 2025
    Route object
    AS55201 SkyQuantum Internet Service
    RADB route object for AS55201 SkyQuantum Internet Service, maintainer MAINT-AS55201
  11. Apr 8, 2026
    Route object
    AS9304 HGC Global Communications Limited
    RADB route object for AS9304 HGC Global Communications Limited, maintainer MAINT-AS9304
  12. Apr 8, 2026
    Route object
    AS9304 HGC Global Communications Limited
    NTTCOM route object for AS9304 HGC Global Communications Limited, maintainer MAINT-AS9304
  13. Apr 8, 2026
    Route object
    AS9304 HGC Global Communications Limited
    RADB route object for AS9304 HGC Global Communications Limited, maintainer MAINT-AS9304
    149.87.136.0/24
  14. Apr 8, 2026
    Route object
    AS9304 HGC Global Communications Limited
    NTTCOM route object for AS9304 HGC Global Communications Limited, maintainer MAINT-AS9304
    149.87.136.0/24
  15. Apr 8, 2026
    Route object
    AS9304 HGC Global Communications Limited
    RADB route object for AS9304 HGC Global Communications Limited, maintainer MAINT-AS9304
    149.87.137.0/24
  16. Apr 8, 2026
    Route object
    AS9304 HGC Global Communications Limited
    NTTCOM route object for AS9304 HGC Global Communications Limited, maintainer MAINT-AS9304
    149.87.137.0/24
  17. Sep 9, 2026
    Route object
    AS63450 Ether Web Network, Inc.
    RADB route object for AS63450 Ether Web Network, Inc., maintainer MAINT-AS55201
  18. Oct 15, 2026– today
    Announced
    AS174 Cogent Communications, LLC
    as part of 149.87.128.0/18
    149.87.128.0/18
  19. today
    Used
    SkyQuantum
    Proxy seller

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
149.87.128.0/18
since Oct 15, 2026
AS174ISP proxy5Cogent Communications, LLC
via Wisdom Cloud Internet Technology Pte. Ltd
149.86.0.0/15
since Sep 2006
AS174Internet provider5,898
925 always on

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
149.87.0.0/1665,536COGENT-149-87-16Cogent Communications, LLC (COGC) · USDirect AllocationJan 28, 1992abuse@cogentco.com
└ 149.87.128.0/1816,384WISDOM-CLOUD-CGNT-NET-1Wisdom Cloud Internet Technology Pte. Ltd (WCITPL) · SGReallocatedJan 5, 2024abuse@wisdomisp.com
└ 149.87.136.0/23512NET-149-87-136-0SkyQuantum Internet Service (SISL-43) · USReassignedOct 11, 2024abuse@adsl.cat

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Rotating
First seen
Oct 2024
Current origin since
Aug 2025 · 1.2 yr
Origin networks
2
Last change of origin
Aug 2025
Recorded history

History

Handoffs
1