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Data as of Nov 4, 2026

37.0.16.0/21

7 residential-proxy exits · 30 days

DDFR IT Infra & Security B.V.

Announcement
this exact prefix
RPKI valid
Announced by
AS35467
Type
Residential
>99% of it

Residential-proxy exits

Proxy exits
7
0.34% of its addresses · 30 days
Always-on exits
1
14% of its exits
Spread
5 of 8
/24s with at least one exit
Providers
29
selling exits here
Oct 5, 2026 – Nov 3, 2026

Exits seen per day

2.2K observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
37.0.17.0/2411
37.0.19.0/2403
37.0.16.0/2401
37.0.21.0/2401
37.0.23.0/2401

Proxy providers listing exits

  • 711Proxy
  • Ake.net
  • AnyIP
  • B2Proxy
  • BirdProxies
  • BottingTools
  • Byteful
  • CliProxy
  • Decodo
  • EZProxies
  • FlashProxy
  • FlexyProxies
  • FloppyData
  • IPCola
  • IPFly
  • IPPeak
  • Kookey
  • MoMoProxy
  • NovProxy
  • NovaProxy
  • Novada
  • Proxio
  • ProxyWing
  • PuraRoute
  • RainProxy
  • RapidProxy
  • SwiftProxy
  • Thordata
  • ThunderProxy

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
37.0.16.0/212,048NL-DCF-20111207DDFR IT Infra & Security B.V. (ORG-DFB1-RIPE) · NLALLOCATED PADec 7, 2011info@ddfr.nl
└ 37.0.16.0/24256DDF-KN-KABELNOORD-19HFC ResidentialASSIGNED PADec 14, 2011info@ddfr.nl
via NL-DCF-20111207
└ 37.0.17.0/24256DDF-KN-KABELNOORD-21HFC ResidentialASSIGNED PAFeb 21, 2013info@ddfr.nl
via NL-DCF-20111207
└ 37.0.18.0/23512DDF-KN-KABELNOORD-20HFC ResidentialASSIGNED PAMar 21, 2012info@ddfr.nl
via NL-DCF-20111207
└ 37.0.20.0 - 37.0.22.255768DDF-KN-KABELNOORD-21unknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.0/298DDF-KN-VVV-AmelandunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.8/298DDF-KN-DVC2unknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.16/304DDF-KN-Fugro-USA-Marine-INCunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.20/304DDFRunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.28/304DDF-SchoolmasterunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.32/298DDF-KN-VanDerHeideunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.40/298DDF-Arrix-testrangeunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.48/2816DDF-Carestream-DMZunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.64/2816DDF-DWF-01unknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.80/304DDF-BijlsmaunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.84/304DDFR-vrijunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.92/304Viadata-RL2unknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.128/2732DDF-FreezIT-4unknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.160/2816DDF-Fritom-NO-RISKunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.176/304DDF-ATB-2unknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.180/304DDF-Netsupport-PA-RLunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.184/298DDF-Netsupport-PAunknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207
└ 37.0.23.240/298DDF-Netsupport-PA-02unknownASSIGNED PAMar 9, 2020info@ddfr.nl
via NL-DCF-20111207

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

2,048 addresses
TypeAddressesShareRanges
Residential2,044>99%2
Business40.20%1

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS35467

NL
Name
DDFR IT Infra & Security B.V.
Type
Internet provider
Registered
Aug 12, 2005
Domain
ddfr.nl
Website
www.ddfr.nl
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed