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Data as of Nov 10, 2026

37.19.0.0/22

3 residential-proxy exits · 30 days

SIS Laboratory, LLC

Announcement
37.19.0.0/21
No RPKI
Announced by
AS198354
Type
Business

Residential-proxy exits

Proxy exits
3
0.29% of its addresses · 30 days
Spread
2 of 4
/24s with at least one exit
Providers
6
selling exits here
Oct 11, 2026 – Nov 9, 2026

Exits seen per day

26 observations

/24s with the most always-on exits

/24Always-on exitsProxy exits
37.19.1.0/2402
37.19.2.0/2401

Proxy providers listing exits

  • ASHBURNPROXIES
  • BottingTools
  • IPFly
  • PuraRoute
  • Shifter
  • ZENPROXY_PREMIUM

Announcements

More specific

Announcements inside

PrefixOriginTypeProxy exitsHolderRPKI
37.19.1.0/24
since Sep 2015
AS198354Business2SIS Laboratory, LLC
37.19.2.0/24
since Mar 2012
AS198354Business1SIS Laboratory, LLC
37.19.3.0/24
since Mar 2012
AS198354BusinessSIS Laboratory, LLC

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
37.19.0.0/212,048RU-SISTELECOM-20111221SIS Laboratory, LLC (ORG-SLL18-RIPE) · RUALLOCATED PADec 21, 2011public@sislab.ru
└ 37.19.0.0/23512SISLAB-OFFICEunknownASSIGNED PAJul 25, 2017public@sislab.ru
via RU-SISTELECOM-20111221
└ 37.19.2.0/24256SISLAB-INFRA-P2PunknownASSIGNED PAJul 25, 2017public@sislab.ru
via RU-SISTELECOM-20111221
└ 37.19.3.0/24256SISLAB-RFS-PAunknownASSIGNED PAJul 25, 2017public@sislab.ru
via RU-SISTELECOM-20111221

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Routing timeline

Who has announced 37.19.0.0/21

37.19.0.0/21

Routing history

Pattern
Stable
First seen
Apr 2013
Current origin since
May 2025 · 1.5 yr
Origin networks
1