Data as of Nov 8, 2026

31.148.21.0/24

9 residential-proxy exits · 30 days

Concept Ltd. · space held by ALFA TELECOM s.r.o.

Announcement
this exact prefix
RPKI valid
Announced by
Type
Residential
Risk
0 / 100 · Low

Residential-proxy exits

Proxy exits
9
3.5% of its addresses · 30 days
Always-on exits
2
22% of its exits
Providers
55
selling exits here
Oct 9, 2026 – Nov 7, 2026

Exits seen per day

1.6K observations

Proxy providers listing exits

  • 2Captcha
  • 711Proxy
  • 9Proxy
  • Ake.net
  • BestProxy
  • BirdProxies
  • BottingTools
  • BuyingProxy
  • ByteProxies
  • Byteful
  • CliProxy
  • Datarama
  • Decodo
  • EnigmaProxy
  • Evomi
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • GSocks
  • Geonix
  • Geonode
  • GonzoProxy
  • HydraProxy
  • IPFly
  • Infatica
  • InfiniteProxies
  • Kookey
  • LightningProxies
  • MangoProxy
  • NSocks
  • NiuProxy
  • NodeMaven
  • NovaProxy
  • Novada
  • Proxiware
  • Proxy-Cheap
  • Proxy-Seller
  • ProxyEmpire
  • ProxyGeo
  • ProxyHat
  • ProxyStyler
  • Proxying
  • Proxyma
  • PuraRoute
  • RainProxy
  • RealProxy
  • ResiProxies
  • Shifter
  • Smartproxy
  • StrikeProxy
  • Thordata
  • VitalData
  • VitalExclusive
  • VitalProxy
  • ZENPROXY_PREMIUM

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
31.148.0.0/16
since Nov 2013
AS44546Residential12,353
1,505 always on
ALFA TELECOM s.r.o.

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
31.148.0.0/1665,536CZ-ALFATELECOM-20110211ALFA TELECOM s.r.o. (ORG-ATS13-RIPE) · CZALLOCATED PAFeb 11, 2011abuse@alfatelecom.cz
└ 31.148.21.0/24256VINKU-NETConcept Ltd. (ORG-LA793-RIPE) · RUASSIGNED PANov 12, 2014help@vinku.ru

Network & registry

IPv4 market

Holder

Organization
ALFA TELECOM s.r.o.
Handle
ORG-ATS13-RIPE
Range
31.148.0.0/16
Registration type
ALLOCATED PA
Record created
Feb 11, 2011
Origin network

AS201469

RU
Name
Concept Ltd.
Type
Internet provider
Registered
Oct 17, 2014
Domain
vinku.ru
Spamhaus ASN-DROP
not listed