LAYER3 INTEL
Get started
TripwireIntel APIIP IntelPricingBlogDocsContactSign in
Data as of Nov 3, 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 · 3 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 · 3 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 2, 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– Nov 2, 2026
    Announced
    AS42689 Glide Student & Residential Limited
    Internet provider

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
128.121.0.0/16
since May 2005
AS2914Internet provider4
1 always on
NTT 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, 2000[email protected]
└ 128.121.0.0/221,024RCN-128-121-000unknownReassignedOct 8, 2026[email protected]
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
IPv4 market

Holder

Holder in the market →
Organization
NTT America, Inc.
Handle
NTTAM-1
Range
128.121.0.0/16
Registration type
Direct Allocation
Record created
Jul 11, 2000
Origin network

AS42689

GB
Name
Glide Student & Residential Limited
Type
Internet provider
Registered
Apr 2, 2007
Domain
glidegroup.co.uk
Website
glidegroup.co.uk/
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed