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Data as of Nov 14, 2026

128.121.0.0/16

18,688 anonymizer addresses · 29% · ISP proxy18 residential-proxy exits · 30 days

NTT America, Inc.

Announcement
this exact prefix
RPKI valid
Announced by
AS2914
Type
Hosting
50% of it

Residential-proxy exits

Proxy exits
18
0.03% of its addresses · 30 days
Spread
3 of 256
/24s with at least one exit
Providers
19
selling exits here
Oct 15, 2026 – Nov 13, 2026

Exits seen per day

95 observations
  • ISP proxy · anonymizer
  • Hosting
  • Internet provider

/24s with the most always-on exits

/24Always-on exitsProxy exits
128.121.57.0/2402
128.121.61.0/2401
128.121.62.0/2401

Proxy providers listing exits

  • BirdProxies
  • Byteful
  • EnigmaProxy
  • GSocks
  • IPROCKET_BASIC
  • Infatica
  • LightningProxies
  • MangoProxy
  • NodeProxy
  • PROXYLANE
  • PROXYSCRAPE
  • Proxiware
  • Proxmint
  • Proxy-Seller
  • ProxyEmpire
  • Proxyma
  • RainProxy
  • Shifter
  • VantageProxies
IPv4 market

Path

1 · Holder
NTT America, Inc.
record created Jul 11, 2000
2 · Leased from
Rackdog
for its owner NTT America, Inc.
3 · Announced by
AS2914 NTT America, Inc.
since May 2005 · 21.5 yr ago
4 · Use
Proxy providersnamed Zhilian Technology
Hosting

Operators, sellers and brokers

Proxy providers

NameParentIn 128.121.0.0/16/24s
Zhilian Technology
1,0241.6%
4
Leased from

IP brokers

NameIn 128.121.0.0/16/24s
Rackdog
17,40827%
68
Leased from

Owners leasing their own space

NameIn 128.121.0.0/16/24s
NTT America, Inc.
17,40827%
68

Lineage

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

128.121.0.0/16

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– today
    Announced
    AS2914 NTT America, Inc.
    Internet provider
  3. Jun 24, 2024
    Route object
    AS204670 NTT United Kingdom Ltd
    NTTCOM route object for AS204670 NTT United Kingdom Ltd, maintainer MAINT-NTT-CSD
    128.121.11.0/24
  4. Jun 24, 2024
    Route object
    AS204670 NTT United Kingdom Ltd
    NTTCOM route object for AS204670 NTT United Kingdom Ltd, maintainer MAINT-NTT-CSD
    128.121.32.0/24
  5. Jun 24, 2024
    Route object
    AS204670 NTT United Kingdom Ltd
    NTTCOM route object for AS204670 NTT United Kingdom Ltd, maintainer MAINT-NTT-CSD
    128.121.43.0/24
  6. Jul 11, 2024
    Route object
    AS204670 NTT United Kingdom Ltd
    RADB route object for AS204670 NTT United Kingdom Ltd, maintainer MAINT-AS19893
    128.121.32.0/24
  7. Jul 17, 2024
    Route object
    AS19893 NTT Global Data Centers Americas, INC.
    RADB route object for AS19893 NTT Global Data Centers Americas, INC., maintainer MAINT-AS19893
    128.121.11.0/24
  8. May 9, 2025
    Route object
    AS2914 NTT America, Inc.
    NTTCOM route object for AS2914 NTT America, Inc., maintainer MAINT-NTTCOM-BB
  9. Jan 30, 2026
    Route object
    AS148996 Global Communication Network Limited
    NTTCOM route object for AS148996 Global Communication Network Limited, maintainer MAINT-NTTCOM-BB
    128.121.16.0/23
  10. Jan 30, 2026
    Route object
    AS214432 Zhilian Technology CO., LTD.
    NTTCOM route object for AS214432 Zhilian Technology CO., LTD., maintainer MAINT-NTTCOM-BB
    128.121.16.0/23
  11. Jan 30, 2026
    Route object
    AS148996 Global Communication Network Limited
    NTTCOM route object for AS148996 Global Communication Network Limited, maintainer MAINT-NTTCOM-BB
    128.121.28.0/23
  12. Jan 30, 2026
    Route object
    AS214432 Zhilian Technology CO., LTD.
    NTTCOM route object for AS214432 Zhilian Technology CO., LTD., maintainer MAINT-NTTCOM-BB
    128.121.28.0/23
  13. Jan 31, 2026
    Route object
    AS148996 Global Communication Network Limited
    RADB route object for AS148996 Global Communication Network Limited, maintainer MAINT-AS214432
    128.121.16.0/23
  14. Jan 31, 2026
    Route object
    AS148996 Global Communication Network Limited
    RADB route object for AS148996 Global Communication Network Limited, maintainer MAINT-AS214432
    128.121.28.0/23
  15. Oct 20, 2026
    Route object
    AS13700 NexusWave
    NTTCOM route object for AS13700 NexusWave, maintainer MAINT-NTTCOM-RA
    128.121.44.0/23
  16. today
    Used
    Zhilian Technology
    Proxy seller

Announcements

Nesting

More-specifics by size

Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific

Announcements inside

PrefixOriginTypeLeased fromHolderRPKI
128.121.0.0/22
since Oct 10, 2026
AS42689ISP proxyIP broker RackdogNTT America, Inc.
128.121.15.0/24
since Jul 2024
AS204670BusinessNTT America, Inc.
128.121.16.0/24
since Jan 2026
AS148996UnknownNTT America, Inc.
128.121.17.0/24
since Jan 2026
AS148996UnknownNTT America, Inc.
128.121.28.0/24
since Jan 2026
AS148996UnknownNTT America, Inc.
128.121.29.0/24
since Jan 2026
AS148996UnknownNTT America, Inc.
128.121.64.0/18
since Jun 2025
AS6079ISP proxyIP broker RackdogNTT America, Inc.
128.121.64.0/19
since Sep 2025
AS7029ISP proxyIP broker RackdogNTT America, Inc.
128.121.96.0/19
since Sep 2025
AS7029ISP proxyIP broker RackdogNTT America, Inc.
128.121.128.0/17
since Nov 2025
AS203020HostingNTT 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
└ 128.121.64.0/1816,384RCN-128-241-64RCN (C11598210) · USReassignedMay 19, 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.

Composition

The types across the prefix's announced space, by addresses.

Announced space

Address share

Announced space

Types across the prefix

65,536 addresses
TypeAddressesShareRanges
Hosting32,76850%1
ISP proxyanonymizer18,68829%8
Internet provider12,80020%9
Unknown1,0241.6%4
Business2560.39%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Stable
First seen
May 2005
Current origin since
May 2005 · 22 yr
Origin networks
1