Data as of Nov 5, 2026
128.121.0.0/16
17,408 anonymizer addresses · 27% · ISP proxy13 residential-proxy exits · 30 daysNTT America, Inc.
Residential-proxy exits
Proxy exits
13
0.02% of its addresses · 30 days
Always-on exits
1
7.7% of its exits
Spread
3 of 256
/24s with at least one exit
Providers
20
selling exits here
Oct 6, 2026 – Nov 4, 2026
Exits seen per day
155 observations
- Hosting
- Internet provider
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 128.121.56.0/24 | 1 | 1 | |
| 128.121.57.0/24 | 0 | 2 | |
| 128.121.61.0/24 | 0 | 1 |
Proxy providers listing exits
- BirdProxies
- ByteProxies
- Byteful
- EnigmaProxy
- FlashProxy
- FlexyProxies
- FloppyData
- GSocks
- Geonix
- GonzoProxy
- Infatica
- LemonLabs
- MangoProxy
- NodeProxy
- NovaProxy
- Proxmint
- Proxy-Seller
- ProxyEmpire
- Shifter
- VitalExclusive
IPv4 market
Path
4 · Use
Hosting
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
IP brokers
| Name | In 128.121.0.0/16 | /24s |
|---|---|---|
| Rackdog | 17,40827% | 68 |
Leased from
Owners leasing their own space
| Name | In 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
- Jul 11, 2000Registry recordNTT America, Inc.Direct Allocation128.121.0.0/16
- May 9, 2005– today
- Jun 24, 2024Route objectAS204670 NTT United Kingdom LtdNTTCOM route object for AS204670 NTT United Kingdom Ltd, maintainer MAINT-NTT-CSD128.121.11.0/24
- Jun 24, 2024Route objectAS204670 NTT United Kingdom LtdNTTCOM route object for AS204670 NTT United Kingdom Ltd, maintainer MAINT-NTT-CSD128.121.32.0/24
- Jun 24, 2024Route objectAS204670 NTT United Kingdom LtdNTTCOM route object for AS204670 NTT United Kingdom Ltd, maintainer MAINT-NTT-CSD128.121.43.0/24
- Jul 11, 2024Route objectAS204670 NTT United Kingdom LtdRADB route object for AS204670 NTT United Kingdom Ltd, maintainer MAINT-AS19893128.121.32.0/24
- Jul 17, 2024Route objectAS19893 NTT Global Data Centers Americas, INC.RADB route object for AS19893 NTT Global Data Centers Americas, INC., maintainer MAINT-AS19893128.121.11.0/24
- May 9, 2025Route objectAS2914 NTT America, Inc.NTTCOM route object for AS2914 NTT America, Inc., maintainer MAINT-NTTCOM-BB
- Jan 30, 2026Route objectAS148996 Global Communication Network LimitedNTTCOM route object for AS148996 Global Communication Network Limited, maintainer MAINT-NTTCOM-BB128.121.16.0/23
- Jan 30, 2026Route objectAS214432 Zhilian Technology CO., LTD.NTTCOM route object for AS214432 Zhilian Technology CO., LTD., maintainer MAINT-NTTCOM-BB128.121.16.0/23
- Jan 30, 2026Route objectAS148996 Global Communication Network LimitedNTTCOM route object for AS148996 Global Communication Network Limited, maintainer MAINT-NTTCOM-BB128.121.28.0/23
- Jan 30, 2026Route objectAS214432 Zhilian Technology CO., LTD.NTTCOM route object for AS214432 Zhilian Technology CO., LTD., maintainer MAINT-NTTCOM-BB128.121.28.0/23
- Jan 31, 2026Route objectAS148996 Global Communication Network LimitedRADB route object for AS148996 Global Communication Network Limited, maintainer MAINT-AS214432128.121.16.0/23
- Jan 31, 2026Route objectAS148996 Global Communication Network LimitedRADB route object for AS148996 Global Communication Network Limited, maintainer MAINT-AS214432128.121.28.0/23
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
| Prefix | Origin | Type | Leased from | Holder | RPKI |
|---|---|---|---|---|---|
| 128.121.0.0/22 since Oct 10, 2026 | AS42689 | ISP proxy | NTT America, Inc. | ||
| 128.121.15.0/24 since Jul 2024 | AS204670 | Business | NTT America, Inc. | ||
| 128.121.16.0/24 since Jan 2026 | AS148996 | Unknown | NTT America, Inc. | ||
| 128.121.17.0/24 since Jan 2026 | AS148996 | Unknown | NTT America, Inc. | ||
| 128.121.28.0/24 since Jan 2026 | AS148996 | Unknown | NTT America, Inc. | ||
| 128.121.29.0/24 since Jan 2026 | AS148996 | Unknown | NTT America, Inc. | ||
| 128.121.64.0/18 since Jun 2025 | AS6079 | ISP proxy | IP broker Rackdog | NTT America, Inc. | |
| 128.121.64.0/19 since Sep 2025 | AS7029 | ISP proxy | IP broker Rackdog | NTT America, Inc. | |
| 128.121.96.0/19 since Sep 2025 | AS7029 | ISP proxy | IP broker Rackdog | NTT America, Inc. | |
| 128.121.128.0/17 since Nov 2025 | AS203020 | Hosting | 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.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 128.121.0.0/16 | 65,536 | NTTA-128-121 | NTT America, Inc. (NTTAM-1) · US | Direct Allocation | Jul 11, 2000 | abuse@ |
| └ 128.121.0.0/22 | 1,024 | RCN-128-121-000 | unknown | Reassigned | Oct 8, 2026 | abuse@ via NTTA-128-121 |
| └ 128.121.64.0/18 | 16,384 | RCN-128-241-64 | RCN (C11598210) · US | Reassigned | May 19, 2026 | abuse@ 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
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Hosting | 32,768 | 50% | 1 | |
| ISP proxyanonymizer | 17,408 | 27% | 3 | |
| Internet provider | 14,080 | 21% | 3 | |
| Unknown | 1,024 | 1.6% | 4 | |
| Business | 256 | 0.39% | 1 |
Network & registry
Origin network
AS2914
US
- Name
- NTT America, Inc.
- Type
- Internet provider
- Registered
- Dec 7, 1998
- Domain
- ntt.net
- Website
- www.gin.ntt.net/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 128.121.0.0/16 | AS2914 | /16 | ARIN | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS2914 | NTTCOM | NTT NTTA-128-121 | MAINT-NTTCOM-BB | May 9, 2025 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 128.121.11.0/24 | AS19893 | RADB | Nexcenter VA1 - Mitsubishi | MAINT-AS19893 | Jul 17, 2024 |
| 128.121.11.0/24 | AS204670 | NTTCOM | NTT Cloud Services Division Customer (asbnva04) | MAINT-NTT-CSD | Jun 24, 2024 |
| 128.121.16.0/23 | AS148996 | RADB | MAINT-AS214432 | Jan 31, 2026 | |
| 128.121.16.0/23 | AS148996 | NTTCOM | Zhilian | MAINT-NTTCOM-BB | Jan 30, 2026 |
| 128.121.16.0/23 | AS214432 | NTTCOM | Zhilian | MAINT-NTTCOM-BB | Jan 30, 2026 |
| 128.121.28.0/23 | AS148996 | RADB | MAINT-AS214432 | Jan 31, 2026 | |
| 128.121.28.0/23 | AS148996 | NTTCOM | Zhilian | MAINT-NTTCOM-BB | Jan 30, 2026 |
| 128.121.28.0/23 | AS214432 | NTTCOM | Zhilian | MAINT-NTTCOM-BB | Jan 30, 2026 |
| 128.121.32.0/24 | AS204670 | RADB | NTT America, Inc. - Mitsui | MAINT-AS19893 | Jul 11, 2024 |
| 128.121.32.0/24 | AS204670 | NTTCOM | NTT Cloud Services Division Customer (asbnva04) | MAINT-NTT-CSD | Jun 24, 2024 |
| 128.121.43.0/24 | AS204670 | NTTCOM | NTT Cloud Services Division Customer (asbnva05) | MAINT-NTT-CSD | Jun 24, 2024 |
Whois
Registration for this announcement
- Range
- 128.
121. 0. 0/ 16 - Netname
- NTTA-128-121
- Registrant
- NTT America, Inc.
- Organization
- NTT America, Inc. (NTTAM-1)
- Org address
- 15809 Bear Creek Pkwy, Redmond, WA, 98052
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-128-121-0-0-1
- Parent
- NET-128-0-0-0-0
- Created
- Jul 11, 2000
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 11, 2000
- Status
- assigned
Report abuse
Abuse contact
- abuse@
ntt. net - Name
- NTT America Abuse Contact
- Phone
- +1-877-688-6625
- Handle
- NAAC-ARIN