Data as of Nov 6, 2026

37.128.176.0/22

No anonymizer space · no proxy exits in 30 days

CKW Fiber Services AG

Announcement

37.128.176.0/21

RPKI valid

Announced by

AS198433

Type

Business

62% of it

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
37.128.176.0/21	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

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

1,024 addresses

Type	Addresses	Share	Ranges
Business	639	62%	45
Internet provider	385	38%	13

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Announced by

Covering announcement 37.128.176.0/21

Prefix: 37.128.176.0/21
Announced by: AS198433 CKW Fiber Services AG
Type: Internet provider
Proxy exits: 2
Always-on exits: 1
RPKI: RPKI valid
Netname: CH-CFS-20120220
Registrant: CKW Fiber Services AG
RIR: RIPE NCC

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 37.128.176.0/21

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

37.128.176.0/22

Registrations in this block

Composition

Address share

Types across the prefix

Network & registry

Covering announcement 37.128.176.0/21

AS198433

Who has announced 37.128.176.0/21

Routing history

Route origin authorizations

Route objects on 37.128.176.0/21

Registration for this announcement

Abuse contact