Autonomous System details

AS203757

Gregor Czubayko · as203757.net

Germany

Stub AS

Need more data or want to access it via API or data downloads? Sign up to get free access

AS203757 – Gregor Czubayko

Field	Value
Country	Germany
Website	as203757.net
Hosted domains	0
IPv4 addresses	0
IPv6 addresses	1,208,925,819,614,629,174,706,176
ASN type	ISP
Registry	ripe
Allocated	3 months ago on Nov 14, 2025
Updated	3 months ago on Nov 15, 2025

There are no known IPv4 addresses belonging to this network

Netblock	Company
2a0f:85c1:d9f::/48	Gregor Czubayko

Get this data and more with IPinfo's powerful IP Ranges API - quickly and easily identify company-owned IP ranges.

IP Ranges API

WHOIS Details

Join for free to view WHOIS details ›


                                                ASHandle:       AS203757
                                                OrgID:          AS203757
                                                ASName:         AS203757
                                                ASNumber:       AS203757
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

Get this data and more with IPinfo's WHOIS product - effortless access to POCs, ORGs, and Networks, for actionable intelligence.

IP WHOIS API & Database

Hosted Domains

There are no domains currently hosted on this ASN.

Discover all domains hosted on a single IP address with IPinfo's powerful Hosted Domains (Reverse IP) solution.

Useful for Cybersecurity

Hosted Domains API & Database

Peers

There is 1 peer for this ASN.

Peers	Name
AS41108	FirstRoot

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

ASN API & Database

Upstreams

There is 1 peer for this ASN.

upstreams	Name
AS41108	FirstRoot

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

ASN API & Database

Downstreams

There are no downstreams for this ASN.

Get this data and more insights on related domains, allocation dates, registry names, IP counts with IPinfo's IP-to-ASN product.

ASN API & Database

Pingable IPs

1 IPs in this ASN replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
2a0f:85c1:d9f::1	AS203757 Gregor Czubayko	`0.71ms` from Duesseldorf, DE

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
99.164.83.221	AS7018 AT&T Enterprises, LLC	`7.62ms` from Atlanta, US
178.148.38.253	AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.	`5.30ms` from Belgrade, RS
178.26.20.253	AS3209 Vodafone GmbH	`5.83ms` from Berlin, DE
185.170.29.253	AS201455 any.cloud A/S	`0.41ms` from Copenhagen, DK
184.186.141.221	AS22773 Cox Communications Inc.	`5.74ms` from Dallas, US
83.136.46.157	AS13280 Three Ireland (Hutchison) limited	`0.66ms` from Dublin, IE
217.93.207.45	AS3320 Deutsche Telekom AG	`3.43ms` from Duesseldorf, DE
183.245.66.13	AS56041 China Mobile communications corporation	`9.53ms` from Hangzhou, CN
221.210.25.61	AS4837 CHINA UNICOM China169 Backbone	`6.46ms` from Harbin, CN
221.140.54.157	AS9318 SK Broadband Co Ltd	`1.45ms` from Incheon, KR
94.5.225.173	AS5607 Sky UK Limited	`12.79ms` from London, GB
115.203.117.157	AS4134 CHINANET-BACKBONE	`7.70ms` from Ningbo, CN
95.189.202.221	AS12389 PJSC Rostelecom	`8.31ms` from Novosibirsk, RU
125.8.146.93	AS9824 JCOM Co., Ltd.	`9.56ms` from Osaka, JP
64.121.164.93	AS6079 RCN	`5.99ms` from Philadelphia, US
188.123.141.125	AS35805 JSC "Silknet"	`5.26ms` from Tbilisi, GE
35.245.214.93	AS396982 Google LLC	`0.14ms` from Ashburn, US
163.252.9.173	AS13977 Fidium	`7.56ms` from Boston, US
85.115.209.253	AS64267 Sprious LLC	`0.14ms` from Frankfurt am Main, DE
217.231.230.189	AS3320 Deutsche Telekom AG	`3.25ms` from Hamburg, DE
93.192.77.45	AS3320 Deutsche Telekom AG	`5.41ms` from Hamburg, DE
86.186.169.221	AS2856 British Telecommunications PLC	`2.21ms` from London, GB
153.244.112.253	AS4713 NTT DOCOMO BUSINESS,Inc.	`9.84ms` from Osaka, JP
73.241.89.29	AS7922 Comcast Cable Communications, LLC	`6.29ms` from San Jose, US
220.117.228.157	AS4766 Korea Telecom	`1.53ms` from Seoul, KR

Related Networks

AS203829

Leitz GmbH & Co. KG

More details

AS206374

INNEO Solutions GmbH

More details

AS207277

IntReal Solutions GmbH

More details

AS208484

EuroSkyPark GmbH

More details

AS214138

Julian Kempf trading as Host-Zentrum

More details

AS25039

Linde GmbH

More details

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS203757 at robtex.

Data built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales