Data as of Nov 6, 2026

37.128.176.0/21

2 residential-proxy exits · 30 days

CKW Fiber Services AG

Announcement

this exact prefix

RPKI valid

Announced by

AS198433

Type

Business

73% of it

Residential-proxy exits

Proxy exits

0.10% of its addresses · 30 days

Always-on exits

50% of its exits

Spread

1 of 8

/24s with at least one exit

Providers

selling exits here

Oct 7, 2026 – Nov 5, 2026

Exits seen per day

1.1K observations

Proxy providers listing exits

BlurPath
CliProxy
DataImpulse
GloryCloud
IPFly
IPPeak
LemonBright
MoMoProxy
NovProxy
Proxmint
Proxy4U
PuraRoute
Q2IP
Thordata

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.

Range	Addresses	Netname	Holder	Type	Created	Abuse contact
37.128.176.0/21	2,048	CH-CFS-20120220	CKW Fiber Services AG (ORG-CFSA1-RIPE) · CH	ALLOCATED PA	Feb 20, 2012	abuse@litecom.ch
└ 37.128.176.0/25	128	INFRA-INTERNET-BB	CKW Fiber Service	ASSIGNED PA	May 23, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.176.128 - 37.128.176.239	112	Customer-P2P	unknown	ASSIGNED PA	May 2, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.176.240/28	16	INFRA-INTERNET-Pt2Pt	CKW Fiber Service	ASSIGNED PA	May 23, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.177.0/24	256	INFRA-Pt-Pt	CKW Fiber Service	ASSIGNED PA	May 16, 2012	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.16/29	8	Connex-INTERNET	unknown	ASSIGNED PA	May 28, 2025	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.24/29	8	MW_Storage-INTERNET	unknown	ASSIGNED PA	Feb 13, 2020	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.32/28	16	ALMATEC-INTERNET	Almatec Schuepfheim	ASSIGNED PA	Jul 13, 2012	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.48/29	8	HAWE-INTERNET	HAWE-HYDRATEC AG Cham	ASSIGNED PA	Sep 8, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.64/28	16	Komax-INTERNET	unknown	ASSIGNED PA	Oct 14, 2025	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.96/29	8	SPARE-INTERNET	Spare, Wolhusen	ASSIGNED PA	Jul 10, 2013	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.104/29	8	REIDEN-TECHNIK-INTERNET	Reiden Technik, Reiden	ASSIGNED PA	Dec 3, 2012	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.112/28	16	InfoSoft-INTERNET	unknown	ASSIGNED PA	Sep 10, 2026	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.128/30	4	INFRA-INTERNET-SERVICE	CKW Fiber Services AG	ASSIGNED PA	Jan 22, 2013	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.132/30	4	INFRA-INTERNET-SERVICE	CKW Fiber Services AG	ASSIGNED PA	Jan 22, 2013	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.136/30	4	INFRA-INTERNET-SERVICE	CKW Fiber Services AG	ASSIGNED PA	Jan 22, 2013	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.140/30	4	INFRA-INTERNET-SERVICE	CKW Fiber Services AG	ASSIGNED PA	Jan 22, 2013	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.144/29	8	AGROVISION-INTERNET	Agrovision Burgrain AG	ASSIGNED PA	Jan 22, 2013	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.152/30	4	INFRA-INTERNET-SERVICE	CKW Fiber Services AG	ASSIGNED PA	Mar 6, 2013	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.156/30	4	INFRA-INTERNET-SERVICE	CKW Fiber Services AG	ASSIGNED PA	Mar 6, 2013	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.160/29	8	Gemu-INTERNET	unknown	ASSIGNED PA	Sep 23, 2019	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.176/28	16	HORW-INTERNET	Gemeinde Horw	ASSIGNED PA	May 6, 2013	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.192/28	16	Victoria_Jungfrau-INTERNET	unknown	ASSIGNED PA	Sep 17, 2020	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.208/29	8	BadKnutwil-INTERNET	unknown	ASSIGNED PA	May 24, 2019	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.216/29	8	PRUEF-FORSCHUNGSINSTITUT-INTERNET	Pruef & Forschungsinstitut Sursee	ASSIGNED PA	Oct 9, 2013	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.232/29	8	LBV-Internet	Luzerner Baeuerinnen und Bauernverband	ASSIGNED PA	Mar 4, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.178.249 - 37.128.178.255	7	VICI-INTERNET	Vici Schenkon	ASSIGNED PA	Mar 13, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.0/30	4	SHARED-INTERNET	POP Sempach	ASSIGNED PA	Jan 20, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.8/30	4	ROTTAL-Internet	Auto Rottal	ASSIGNED PA	Mar 17, 2015	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.16/28	16	SHARED-INTERNET	POP Sursee	ASSIGNED PA	Jan 20, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.32/28	16	SHARED-INTERNET	POP Rathausen	ASSIGNED PA	Jun 17, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.48/30	4	CFS-Internet	CFS RZ Ruopigen	ASSIGNED PA	Apr 9, 2015	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.52/30	4	CFS-Internet2	CFS RZ Ruopigen 2	ASSIGNED PA	Apr 9, 2015	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.64/29	8	NIS-Internet	NIS Sursee	ASSIGNED PA	Jul 14, 2015	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.72/30	4	Stoeckli-INTERNET	unknown	ASSIGNED PA	Oct 30, 2020	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.76/30	4	WANDELER-Internet	Wandeler Nottwil	ASSIGNED PA	Aug 12, 2015	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.80/28	16	INTERNET-OPES	unknown	ASSIGNED PA	Nov 11, 2024	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.96/29	8	CFS-INTERNET	unknown	ASSIGNED PA	Oct 14, 2015	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.108/30	4	CKW-VIDEO	CKW IT	ASSIGNED PA	Dec 4, 2015	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.112/30	4	Speicherbibliothek-Internet	Speicherbibliothek Büron	ASSIGNED PA	Oct 13, 2015	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.116/30	4	SOKOLOV-Internet	Sokolov Jewelry	ASSIGNED PA	Jan 4, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.128/28	16	KRONOSPAN	Kronospan Menziken	ASSIGNED PA	Feb 24, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.152/29	8	ComDataNet-Internet	unknown	ASSIGNED PA	Apr 22, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.160/27	32	ComDataNet-Internet	unknown	ASSIGNED PA	Apr 22, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.192/28	16	ComDataNet-Internet	unknown	ASSIGNED PA	Apr 22, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.208/29	8	VICI-SCHENKON-2	unknown	ASSIGNED PA	Apr 19, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.216/30	4	Stoeckli-INTERNET	unknown	ASSIGNED PA	Oct 30, 2020	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.220/30	4	ELTECH-Internet	Eltech Perlen	ASSIGNED PA	May 23, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.232/29	8	EWA-Internet	unknown	ASSIGNED PA	Jun 29, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.240/29	8	EWA-Internet	unknown	ASSIGNED PA	Mar 18, 2026	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.179.248/29	8	EWA-Internet	unknown	ASSIGNED PA	Mar 18, 2026	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.0/29	8	Wirth-Internet	Wirth&Co Buchrain	ASSIGNED PA	Mar 21, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.8/29	8	INTERNET-Testrange-Voice	unknown	ASSIGNED PA	Apr 9, 2024	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.16/29	8	Gemeide-Horw-INTERNET	unknown	ASSIGNED PA	Jun 26, 2018	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.24/29	8	Horego	unknown	ASSIGNED PA	Mar 10, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.32/29	8	STOECKLI-FEED-CKW	unknown	ASSIGNED PA	Mar 5, 2019	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.40/29	8	PerlenP-INTERNET	Perlen Papier Gastnetz	ASSIGNED PA	Oct 22, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.48/29	8	CFS-INET-LAB	unknown	ASSIGNED PA	Mar 21, 2019	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.56/30	4	FK-IMMO-INTERNET	unknown	ASSIGNED PA	Jan 24, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.60/30	4	Zurkirchen-Malters	unknown	ASSIGNED PA	Mar 10, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.64/27	32	Balmer-Internet	Balmer Etienne Luzern	ASSIGNED PA	Jan 20, 2015	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.96/27	32	KTLUZ-DIIN	unknown	ASSIGNED PA	May 31, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.128/29	8	BUCHRAIN-INTERNET	Gde. Buchrain LU	ASSIGNED PA	Jun 11, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.136/29	8	HILDISRIEDEN-INTERNET	Gde. Hildisrieden LU	ASSIGNED PA	Jun 25, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.144/29	8	PERLEN-GAST	unknown	ASSIGNED PA	Oct 30, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.152/29	8	BEROMUENSTER-INTERNET	Gde. Beromuenster LU	ASSIGNED PA	Oct 24, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.160/29	8	HILDISRIEDEN-SCHULE	Schule Hildisrieden	ASSIGNED PA	May 31, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.176/28	16	EWA-INTERNET	unknown	ASSIGNED PA	Aug 22, 2023	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.192/30	4	INFRA-INTERNET-SERVICE	unknown	ASSIGNED PA	May 12, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.200/29	8	WAGNER-SURSEE	unknown	ASSIGNED PA	Nov 22, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.208/28	16	OMIDA	unknown	ASSIGNED PA	Jun 19, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.224/29	8	Reichmuth-DCLUZ	unknown	ASSIGNED PA	Apr 19, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.232/29	8	Comdata-NET	unknown	ASSIGNED PA	Nov 18, 2019	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.180.240/29	8	INTERNET-Ruch-Metallbau	unknown	ASSIGNED PA	May 31, 2024	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.181.0/25	128	BWO-Internet	BWO Systems AG	ASSIGNED PA	Nov 25, 2014	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.181.128/28	16	BWO2-Internet	BWO Schenkon	ASSIGNED PA	Apr 2, 2015	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.181.144/28	16	StadtverwaltungSursee-Internet	unknown	ASSIGNED PA	Apr 28, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.181.168/29	8	Renergia-INTERNET	unknown	ASSIGNED PA	Aug 20, 2019	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.181.188/30	4	INFRA-INTERNET-SERVICE	unknown	ASSIGNED PA	May 12, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.181.192/27	32	OrthoLU-Internet	unknown	ASSIGNED PA	Jun 30, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.181.240/28	16	TRISA-INTERNET	unknown	ASSIGNED PA	Jul 21, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.182.0/25	128	Creanet-Internet	Creanet Internet Service AG	ASSIGNED PA	Jan 22, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.182.128/30	4	MBING-INTERNET	unknown	ASSIGNED PA	Sep 2, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.182.136/30	4	LEUCHTER-INTERNET	unknown	ASSIGNED PA	Sep 21, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.182.140/30	4	SCHWEIZERISCHE-LEBENSRETTUNGS-GESELLSCHAFT-INTERNET	unknown	ASSIGNED PA	Nov 21, 2016	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.182.160/29	8	HASLIMANN-AUFZUEGE	unknown	ASSIGNED PA	May 8, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.182.169 - 37.128.182.175	7	CFS-VOIP-TRANSFER	unknown	ASSIGNED PA	May 8, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.182.176/28	16	CFS-VOIP-FEED	unknown	ASSIGNED PA	May 8, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.182.192/28	16	PirminJung-INTERNET	unknown	ASSIGNED PA	Jun 20, 2024	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.182.208/29	8	EGLI-SURSEE	unknown	ASSIGNED PA	Jan 12, 2018	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.182.224/27	32	TAILOR-INTERNET	unknown	ASSIGNED PA	Sep 11, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.0/28	16	INTERNET-DRUCKEREI-Schuepfheim	unknown	ASSIGNED PA	Jul 19, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.16/30	4	ARAG-Internet	unknown	ASSIGNED PA	Aug 10, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.20/30	4	CHAESI-KOTTWIL-INTERNET	unknown	ASSIGNED PA	Apr 23, 2018	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.24/29	8	INTERNET-HYDREL	unknown	ASSIGNED PA	Nov 6, 2017	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.40/29	8	BWO-RZ-FEED	unknown	ASSIGNED PA	Apr 23, 2018	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.48/28	16	STOECKLI-INET	unknown	ASSIGNED PA	Feb 26, 2019	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.64/27	32	INTERNET-OPACC	Opacc Software AG Rothenburg	ASSIGNED PA	Aug 13, 2018	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.96/28	16	INTERNET-LOGIN-WEB	Login Web AG	ASSIGNED PA	Aug 24, 2018	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.112/28	16	INET-HAEFLIGER	unknown	ASSIGNED PA	May 6, 2019	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.128/28	16	Chenot-Palace-INTERNET	unknown	ASSIGNED PA	Oct 22, 2019	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.144/28	16	CKW-INTERNET2	unknown	ASSIGNED PA	Mar 27, 2018	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.160/27	32	Altoo-INTERNET	unknown	ASSIGNED PA	Mar 12, 2018	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.192 - 37.128.183.206	15	GEMUE-GmbH_INTERNET	unknown	ASSIGNED PA	Jan 17, 2022	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.224/30	4	INTERNET-Neoperl	unknown	ASSIGNED PA	Oct 28, 2022	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.232/29	8	BRITA-INTERNET	unknown	ASSIGNED PA	Feb 23, 2023	abuse@litecom.ch via CH-CFS-20120220
└ 37.128.183.240/28	16	Elektrisola-INTERNET	unknown	ASSIGNED PA	Sep 1, 2023	abuse@litecom.ch via CH-CFS-20120220

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

Type	Addresses	Share	Ranges
Business	1,494	73%	96
Internet provider	554	27%	29

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS198433

Name: CKW Fiber Services AG
Type: Internet provider
Registered: Jan 26, 2012
Domain: ckw.ch
Website: www.ckw.ch/fiber-services/uebersicht-fiber-services.html
Spamhaus ASN-DROP: not listed

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
37.128.176.0/21	AS198433	/24	RIPE	RPKI valid

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS198433	RIPE	CKW Fiber Services AG	LITECOM-MNT	Mar 8, 2012

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
37.128.176.0/22	AS198433	RIPE		LITECOM-MNT	Aug 8, 2024
37.128.180.0/22	AS198433	RIPE		LITECOM-MNT	Aug 8, 2024

37.128.176.0/21

Residential-proxy exits

Exits seen per day

Proxy providers listing exits

Registrations in this block

Composition

Address share

Types across the prefix

Network & registry

AS198433

Who has announced this prefix

Routing history

Route origin authorizations

Route objects on the exact prefix

Route objects inside

Registration for this announcement

Abuse contact