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Data as of Nov 9, 2026

122.255.128.0/17

1 anonymizer address · <0.01% · VPN162 residential-proxy exits · 30 days

JCOM Co., Ltd.

Announcement
this exact prefix
RPKI valid
Announced by
AS4721
Type
Residential
>99% of it

Residential-proxy exits

Proxy exits
162
0.49% of its addresses · 30 days
Always-on exits
14
8.6% of its exits
Spread
81 of 128
/24s with at least one exit
Providers
72
selling exits here
Oct 10, 2026 – Nov 8, 2026

Exits seen per day

27K observations
  • VPN · anonymizer
  • Residential

/24s with the most always-on exits

/24Always-on exitsProxy exits
122.255.175.0/2425
122.255.204.0/2413
122.255.244.0/2413
122.255.197.0/2413
122.255.170.0/2413
122.255.203.0/2413
122.255.142.0/2412
122.255.214.0/2412
122.255.219.0/2411
122.255.213.0/2411
122.255.242.0/2411
122.255.194.0/2411
122.255.189.0/2411
122.255.218.0/2405
122.255.199.0/2405
122.255.152.0/2405
122.255.227.0/2404
122.255.178.0/2404
122.255.130.0/2404
122.255.172.0/2404
122.255.191.0/2403
122.255.140.0/2403
122.255.245.0/2403
122.255.129.0/2403

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BartProxies
  • BirdProxies
  • BlurPath
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CatProxies
  • CliProxy
  • Datarama
  • Decodo
  • EZProxies
  • EnigmaProxy
  • Evomi
  • FastProxy
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • GloryCloud
  • GonzoProxy
  • HydraProxy
  • IPCola
  • IPFly
  • IPOasis
  • IPPeak
  • IPRoyal
  • Infatica
  • InfiniteProxies
  • KocerRoxy
  • LemonBright
  • LemonLabs
  • LemonPrime
  • LightningProxies
  • LudaxProxy
  • MangoProxy
  • MoMoProxy
  • NextProxy
  • NodeMaven
  • NodeProxy
  • NovProxy
  • NovaProxy
  • PROXYWING_BASIC
  • PacketStream
  • Proxio
  • Proxiware
  • Proxy-Seller
  • ProxyEmpire
  • ProxyHat
  • ProxyRack
  • ProxyWing
  • Proxying
  • Proxyma
  • PuraRoute
  • QUANTICDATA
  • RainProxy
  • SPYDERPROXY_PREMIUM
  • Shifter
  • Thordata
  • ThunderProxy
  • VantageProxies
  • VibeProxies
  • VitalData
  • VitalExclusive
  • VitalProxy
  • ZENPROXY_PREMIUM
IPv4 market

Path

1 · Holder
Unnamed holder
2 · Leased from
not leased
3 · Announced by
AS4721 JCOM Co., Ltd.
since Aug 2016 · 10.2 yr ago
4 · Use
VPN servicesnamed VPN Gate
Residential

Operators, sellers and brokers

VPN services

NameParentIn 122.255.128.0/17/24s
VPN GateUniversity of Tsukuba
1<0.01%
1

Lineage

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

122.255.128.0/17

From the registry to its use

  1. Mar 3, 2015
    Route object
    AS4721 JCOM Co., Ltd.
    RADB route object for AS4721 JCOM Co., Ltd., maintainer MAINT-AS9824
  2. Sep 15, 2015– Jun 27, 2016
    Announced
    AS4721 JCOM Co., Ltd.
    Internet provider
  3. Aug 15, 2016– today
    Announced
    AS4721 JCOM Co., Ltd.
    Internet provider
  4. Jul 10, 2026
    Route object
    AS4721 JCOM Co., Ltd.
    JPIRR route object for AS4721 JCOM Co., Ltd., maintainer MAINT-AS9824
  5. today
    Used
    VPN Gate
    VPN

Announcements

More specific

Announcements inside

PrefixOriginTypeAnonymizer addressesOperatorProxy exitsHolderRPKI
122.255.128.0/18
since Dec 2006
AS4721Residential1<0.01%VPNVPN servicesoperated by VPN Gate86
5 always on
Jupiter Telecommunications Co., Ltd.
122.255.192.0/18
since Sep 2015
AS4721Residential76
9 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
122.255.128.0/1816,384JCNJupiter Telecommunications Co., Ltd.ALLOCATED PORTABLE—hostmaster@nic.ad.jp
122.255.192.0/198,192JCNJCOM Co., Ltd.ALLOCATED PORTABLE—hostmaster@nic.ad.jp
122.255.224.0/198,192JCNJCOM Co., Ltd.ALLOCATED PORTABLEJan 5, 2010hostmaster@nic.ad.jp
└ 122.255.224.0/204,096JCNJCOM Co., Ltd.ALLOCATED PORTABLE—hostmaster@nic.ad.jp

Composition

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

Announced space

Address share

Announced space

Types across the prefix

32,768 addresses
TypeAddressesShareRanges
Residential32,767>99%5
VPNanonymizer1<0.01%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Not stated by the registry
Origin network

AS4721

JP
Name
JCOM Co., Ltd.
Type
Internet provider
Registered
Aug 30, 1995
Domain
jcom.co.jp
Spamhaus ASN-DROP
not listed