Autonomous System details

AS203909

Mainframe Networks · mainframe.dev

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AS203909 – Mainframe Networks

Field	Value
Country	Sweden
Website	mainframe.dev
Hosted domains	0
IPv4 addresses	256
IPv6 addresses	0
ASN type	Hosting
Registry	ripe
Allocated	3 months ago on Nov 11, 2025
Updated	3 months ago on Nov 11, 2025

There are no known IPv4 addresses belonging to this network

Netblock	Company
2001:678:d88::/48	Christian Svensson

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WHOIS Details

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                                                ASHandle:       AS203909
                                                OrgID:          AS203909
                                                ASName:         AS203909
                                                ASNumber:       AS203909
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are no domains currently hosted on this ASN.

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Peers

There are no peers for this ASN.

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Upstreams

There are no upstreams for this ASN.

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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address	ASN	Details
2001:678:d88::1	AS203909 Mainframe Networks	`0.47ms` from Stockholm, SE
193.228.143.1	AS203909 Mainframe Networks	`0.39ms` from Stockholm, SE

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
96.9.5.69	AS19871 Network Solutions, LLC	`0.44ms` from Atlanta, US
47.39.190.213	AS20115 Charter Communications LLC	`4.54ms` from Atlanta, US
3.33.232.181	AS16509 Amazon.com, Inc.	`0.04ms` from Bangkok, TH
181.139.149.165	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`8.07ms` from Bogota, CO
38.120.60.21	AS174 Cogent Communications, LLC	`0.47ms` from Dallas, US
92.196.136.165	AS20676 Plusnet GmbH	`9.32ms` from Frankfurt am Main, DE
91.45.70.213	AS3320 Deutsche Telekom AG	`3.88ms` from Hamburg, DE
221.209.203.181	AS4837 CHINA UNICOM China169 Backbone	`7.86ms` from Harbin, CN
110.79.50.5	AS9293 NTT Com Asia Limited	`0.96ms` from Hong Kong, HK
51.223.44.101	AS25019 Saudi Telecom Company JSC	`3.77ms` from Manama, BH
34.158.249.133	AS396982 Google LLC	`0.10ms` from Melbourne, AU
151.11.208.149	AS1267 WIND TRE S.P.A.	`5.98ms` from Milan, IT
218.92.240.69	AS4134 CHINANET-BACKBONE	`4.48ms` from Nanjing, CN
58.171.34.21	AS1221 Telstra Limited	`2.12ms` from Perth, AU
39.81.133.21	AS4837 CHINA UNICOM China169 Backbone	`9.06ms` from Qingdao, CN
3.225.26.5	AS14618 Amazon.com, Inc.	`0.21ms` from Reston, US
68.65.91.85	AS14265 TPx Communications	`1.19ms` from San Jose, US
116.198.237.53	AS137699 CHINATELECOM Jiangsu Suqian IDC network	`0.25ms` from Suqian, CN
223.95.190.181	AS56041 China Mobile communications corporation	`6.04ms` from Suzhou, CN
126.71.84.133	AS17676 SoftBank Corp.	`3.15ms` from Tokyo, JP
221.11.32.85	AS4837 CHINA UNICOM China169 Backbone	`7.18ms` from Xi'an, CN
89.46.105.149	AS31034 Aruba S.p.A.	`0.32ms` from Arezzo, IT
65.190.11.213	AS11426 Charter Communications Inc	`13.51ms` from Ashburn, US
200.85.39.165	AS23201 Telecel S.A.	`0.72ms` from Asuncion, PY
76.127.204.197	AS7922 Comcast Cable Communications, LLC	`6.76ms` from Boston, US

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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 AS203909 at robtex.

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