Data as of Nov 8, 2026

37.49.152.0/21

No anonymizer space · no proxy exits in 30 days

SysEleven GmbH

Announcement

this exact prefix

RPKI valid

Announced by

AS25291

Type

Hosting

Announcements

More specific

Announcements inside

Prefix	Origin	Type	Holder
37.49.152.0/24 since Jul 2026	AS25291	Hosting	SysEleven GmbH
37.49.153.0/24 since Jul 2026	AS25291	Hosting	SysEleven GmbH
37.49.159.0/24 since Jul 2026	AS25291	Hosting	SysEleven GmbH

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
37.49.152.0/21	2,048	DE-SYSELEVEN-20120126	SysEleven GmbH (ORG-SG57-RIPE) · DE	ALLOCATED PA	Aug 27, 2019	ripe-abuse@syseleven.de
└ 37.49.152.0/30	4	INFRA-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.4/30	4	INFRA-MGMT-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.8/29	8	INFRA-MGMT-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.16/28	16	INFRA-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.32/28	16	INFRA-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.96/29	8	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Dec 9, 2021	ripe-abuse@syseleven.de
└ 37.49.152.104/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.106/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.108/30	4	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.112/28	16	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.128/28	16	Seppmail-Syseleven	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	abuse@seppmail.io
└ 37.49.152.144/28	16	INFRA-MGMT-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.160/28	16	INFRA-MGMT-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.176/28	16	INFRA-MGMT-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.208/29	8	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Apr 30, 2014	ripe-abuse@syseleven.de
└ 37.49.152.216/29	8	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Dec 14, 2021	ripe-abuse@syseleven.de
└ 37.49.152.232/31	2	INFRA-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Oct 6, 2020	ripe-abuse@syseleven.de
└ 37.49.152.234/31	2	INFRA-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.236/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.238/31	2	INFRA-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.152.240/29	8	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Apr 30, 2014	ripe-abuse@syseleven.de
└ 37.49.152.248/29	8	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Apr 30, 2014	ripe-abuse@syseleven.de
└ 37.49.153.0/26	64	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Apr 30, 2014	ripe-abuse@syseleven.de
└ 37.49.153.64/29	8	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.153.80/29	8	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.153.96/29	8	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.153.104/30	4	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.153.108/30	4	INFRA-MGMT-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.153.120/30	4	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.153.124/30	4	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.153.128/25	128	CLOUD-MANAGED-GLOBAL-POOL	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Apr 30, 2014	ripe-abuse@syseleven.de
└ 37.49.155.0/28	16	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Mar 2, 2020	ripe-abuse@syseleven.de
└ 37.49.155.16/29	8	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.24/31	2	INFRA-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jun 3, 2021	ripe-abuse@syseleven.de
└ 37.49.155.26/31	2	INFRA-MGMT-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jun 30, 2021	ripe-abuse@syseleven.de
└ 37.49.155.28/30	4	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Aug 26, 2019	ripe-abuse@syseleven.de
└ 37.49.155.32/30	4	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.36/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Aug 16, 2022	ripe-abuse@syseleven.de
└ 37.49.155.38/31	2	INFRA-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.40/30	4	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.44/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Sep 23, 2022	ripe-abuse@syseleven.de
└ 37.49.155.46/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.56/29	8	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.64/28	16	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.96/29	8	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Aug 26, 2019	ripe-abuse@syseleven.de
└ 37.49.155.104/29	8	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.112/31	2	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jun 24, 2022	ripe-abuse@syseleven.de
└ 37.49.155.116/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.118/31	2	CUST-ACCESS-NET-FREIFUNK-BERLIN	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	abuse@freifunk.org
└ 37.49.155.120/31	2	INFRA-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Dec 8, 2021	ripe-abuse@syseleven.de
└ 37.49.155.122/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	May 5, 2022	ripe-abuse@syseleven.de
└ 37.49.155.124/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	May 5, 2022	ripe-abuse@syseleven.de
└ 37.49.155.126/31	2	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jun 9, 2022	ripe-abuse@syseleven.de
└ 37.49.155.128/28	16	INFRA-MGMT-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.144/29	8	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.160/29	8	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.168/29	8	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.176/31	2	INFRA-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.178/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.184/29	8	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.192/28	16	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.216/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Oct 7, 2022	ripe-abuse@syseleven.de
└ 37.49.155.218/31	2	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	May 13, 2022	ripe-abuse@syseleven.de
└ 37.49.155.220/30	4	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.224/28	16	INFRA-ROUTING-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.240/31	2	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.242/31	2	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.155.244/30	4	CUST-TRANSFER-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jul 25, 2019	ripe-abuse@syseleven.de
└ 37.49.156.0/26	64	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Nov 12, 2021	ripe-abuse@syseleven.de
└ 37.49.156.64/27	32	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Mar 2, 2022	ripe-abuse@syseleven.de
└ 37.49.156.96/27	32	CUST-ACCESS-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Mar 30, 2022	ripe-abuse@syseleven.de
└ 37.49.156.128/25	128	INFRA-MGMT-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jan 13, 2022	ripe-abuse@syseleven.de
└ 37.49.157.0/24	256	INFRA-SERVICE-APP-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jan 10, 2019	ripe-abuse@syseleven.de
└ 37.49.158.0/24	256	INFRA-ROUTING-NET	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jan 10, 2019	ripe-abuse@syseleven.de
└ 37.49.159.0/24	256	CLOUD-MANAGED-GLOBAL-POOL	SysEleven GmbH (ORG-SG57-RIPE) · DE	ASSIGNED PA	Jan 9, 2019	ripe-abuse@syseleven.de

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Origin network

AS25291

Name: SysEleven GmbH
Type: Hosting
Registered: Dec 7, 2009
Domain: secunet.cloud
Website: www.secunet.cloud
Spamhaus ASN-DROP: not listed

RPKI

Route origin authorizations

ROA prefix	ASN	Max len	Anchor	Verdict
37.49.152.0/21	AS25291	/24	RIPE	RPKI valid

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS25291	RIPE	SysEleven Global Network - Aggregate route object	SYS11-MNT	Jul 30, 2019

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
37.49.154.0/24	AS25291	RIPE	SysEleven Global Network - More specific route object	SYS11-MNT	Jul 30, 2019
37.49.155.0/24	AS25291	RIPE	SysEleven Global Network - More specific route object	SYS11-MNT	Jul 30, 2019
37.49.156.0/24	AS25291	RIPE	SysEleven Global Network - More specific route object	SYS11-MNT	Jul 30, 2019
37.49.157.0/24	AS25291	RIPE	SysEleven Global Network - More specific route object	SYS11-MNT	Jul 30, 2019
37.49.158.0/24	AS25291	RIPE	SysEleven Global Network - More specific route object	SYS11-MNT	Jul 30, 2019

37.49.152.0/21

Announcements

Announcements inside

Registrations in this block

Network & registry

AS25291

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