Data as of Nov 4, 2026
37.19.0.0/22
3 residential-proxy exits · 30 daysSIS Laboratory, LLC
Residential-proxy exits
Proxy exits
3
0.29% of its addresses · 30 days
Spread
2 of 4
/24s with at least one exit
Providers
3
selling exits here
Oct 5, 2026 – Nov 3, 2026
Exits seen per day
21 observations
/24s with the most always-on exits
| /24 | Always-on exits | Proxy exits | |
|---|---|---|---|
| 37.19.1.0/24 | 0 | 2 | |
| 37.19.2.0/24 | 0 | 1 |
Proxy providers listing exits
- BottingTools
- IPFly
- PuraRoute
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 37.19.1.0/24 since Sep 2015 | AS198354 | Business | 2 | SIS Laboratory, LLC | |
| 37.19.2.0/24 since Mar 2012 | AS198354 | Business | 1 | SIS Laboratory, LLC | |
| 37.19.3.0/24 since Mar 2012 | AS198354 | Business | SIS Laboratory, LLC |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 37.19.0.0/21 | 2,048 | RU-SISTELECOM-20111221 | SIS Laboratory, LLC (ORG-SLL18-RIPE) · RU | ALLOCATED PA | Dec 21, 2011 | public@ |
| └ 37.19.0.0/23 | 512 | SISLAB-OFFICE | unknown | ASSIGNED PA | Jul 25, 2017 | public@ via RU-SISTELECOM-20111221 |
| └ 37.19.2.0/24 | 256 | SISLAB-INFRA-P2P | unknown | ASSIGNED PA | Jul 25, 2017 | public@ via RU-SISTELECOM-20111221 |
| └ 37.19.3.0/24 | 256 | SISLAB-RFS-PA | unknown | ASSIGNED PA | Jul 25, 2017 | public@ 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
Announced by
Covering announcement 37.19.0.0/21
- Prefix
- 37.19.0.0/21
- Announced by
- AS198354 SIS Laboratory, LLC
- Type
- Business
- Proxy exits
- 3
- RPKI
- No RPKI
- Netname
- RU-SISTELECOM-20111221
- Registrant
- SIS Laboratory, LLC
- RIR
- RIPE NCC
Origin network
AS198354
RU
- Name
- SIS Laboratory, LLC
- Type
- Education
- Registered
- Dec 21, 2011
- Domain
- sislab.ru
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
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 · 1.4 yr
- Origin networks
- 1
IRR
Route objects on 37.19.0.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS198354 | RIPE | SIS Laboratory's IPv4 Aggregate Route | RU-SISLAB-MNT | May 30, 2017 |
Whois
Registration for this announcement
- Range
- 37.
19. 0. 0/ 21 - Netname
- RU-SISTELECOM-20111221
- Registrant
- SIS Laboratory, LLC
- Registrant country
- RU
- Organization
- SIS Laboratory, LLC (ORG-SLL18-RIPE)
- Org country
- RU
- Type
- ALLOCATED PA
- Created
- Dec 21, 2011
- Updated
- May 29, 2018
- Maintainer
- RIPE-NCC-HM-MNT
- RIR
- RIPE NCC
- Country
- RU
- Delegated
- Dec 21, 2011
- Status
- assigned
Report abuse
Abuse contact
- public@
sislab. ru - Name
- Abuse-C Role
- Handle
- AR16927-RIPE