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Data as of Nov 15, 2026

128.121.0.0/22

Anonymizer · ISP proxy

Glide Student & Residential Limited · space held by NTT America, Inc.

Announcement
this exact prefix
RPKI valid
Announced by
AS42689
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin Oct 10, 2026
from AS3949 NTT America, Inc.
IPv4 market

Path

Announced by AS42689 since Oct 10, 2026 · 5 wk ago
1 · Holder
NTT America, Inc.
record created Jul 11, 2000
2 · Leased from
Rackdog
for its owner NTT America, Inc.
3 · Announced by
AS42689 Glide Student & Residential Limited
since Oct 10, 2026 · 5 wk ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 128.121.0.0/22/24s
Rackdog
1,024100%
4
Leased from

Owners leasing their own space

NameIn 128.121.0.0/22/24s
NTT America, Inc.
1,024100%
4

Lineage

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

128.121.0.0/22

From the registry to its use

  1. Jul 11, 2000
    Registry record
    NTT America, Inc.
    Direct Allocation
    128.121.0.0/16
  2. May 9, 2005– Nov 14, 2026
    Announced
    AS2914 NTT America, Inc.
    as part of 128.121.0.0/16
    128.121.0.0/16
  3. Jun 5, 2025– Aug 22, 2026
    Announced
    AS3949 NTT America, Inc.
    Internet provider
  4. Oct 10, 2026– today
    Announced
    AS42689 Glide Student & Residential Limited
    Internet provider
  5. Oct 19, 2026
    Route object
    AS3320 Deutsche Telekom AG
    NTTCOM route object for AS3320 Deutsche Telekom AG, maintainer MAINT-NTTCOM-BB
  6. Oct 19, 2026
    Route object
    AS3491 PCCW Global (HK) Ltd.
    NTTCOM route object for AS3491 PCCW Global (HK) Ltd., maintainer MAINT-NTTCOM-BB
  7. Oct 19, 2026
    Route object
    AS4826 Vocus Connect International Backbone
    NTTCOM route object for AS4826 Vocus Connect International Backbone, maintainer MAINT-NTTCOM-BB
  8. Oct 19, 2026
    Route object
    AS6079 RCN
    NTTCOM route object for AS6079 RCN, maintainer MAINT-NTTCOM-BB
  9. Oct 19, 2026
    Route object
    AS7029 Windstream Communications LLC
    NTTCOM route object for AS7029 Windstream Communications LLC, maintainer MAINT-NTTCOM-BB
  10. Oct 19, 2026
    Route object
    AS7459 Grande Communications Networks, LLC
    NTTCOM route object for AS7459 Grande Communications Networks, LLC, maintainer MAINT-NTTCOM-BB
  11. Oct 19, 2026
    Route object
    AS10753 Level 3 Parent, LLC
    NTTCOM route object for AS10753 Level 3 Parent, LLC, maintainer MAINT-NTTCOM-BB
  12. Oct 19, 2026
    Route object
    AS11404 Wave Broadband
    NTTCOM route object for AS11404 Wave Broadband, maintainer MAINT-NTTCOM-BB
  13. Oct 19, 2026
    Route object
    AS20115 Charter Communications LLC
    NTTCOM route object for AS20115 Charter Communications LLC, maintainer MAINT-NTTCOM-BB
  14. Oct 19, 2026
    Route object
    AS22773 Cox Communications Inc.
    NTTCOM route object for AS22773 Cox Communications Inc., maintainer MAINT-NTTCOM-BB
  15. Oct 19, 2026
    Route object
    AS42689 Glide Student & Residential Limited
    NTTCOM route object for AS42689 Glide Student & Residential Limited, maintainer MAINT-NTTCOM-BB
  16. Oct 19, 2026
    Route object
    AS398465 Rackdog, LLC
    NTTCOM route object for AS398465 Rackdog, LLC, maintainer MAINT-NTTCOM-BB
  17. today
    Leased from
    Rackdog
    IP broker

Announcements

Less specific

Covering announcements

PrefixOriginTypeAnonymizer addressesOperatorProxy exitsHolderRPKI
128.121.0.0/16
since May 2005
AS2914Internet provider1,2802.0%ISP proxyProxy providersoperated by Zhilian Technology6NTT America, Inc.

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
128.121.0.0/1665,536NTTA-128-121NTT America, Inc. (NTTAM-1) · USDirect AllocationJul 11, 2000abuse@ntt.net
└ 128.121.0.0/221,024RCN-128-121-000unknownReassignedOct 8, 2026abuse@ntt.net
via NTTA-128-121

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

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Rotating
First seen
Jun 2025
Current origin since
Oct 10, 2026 · 1 mo
Origin networks
2
Last change of origin
Oct 10, 2026
Recorded history

History

Handoffs
1