Autonomous System details

AS51859

Mainstream doo Beograd  ·  mainstream.eu

Serbia

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AS51859 – Mainstream doo Beograd

Field Value
Country Serbia
Website mainstream.eu
Hosted domains 929
IPv4 addresses 9,984
IPv6 addresses 673,439,381,371,246,869,545,123,577,856
ASN type Hosting
Registry ripe
Allocated 15 years ago on Nov 17, 2010
Updated 2 months ago on Oct 21, 2025

IP Ranges

Netblock Company Num of IPs
87.237.200.0/21 Mainstream doo Beograd 2,048
91.214.200.0/22 Mainstream doo Beograd 1,024
91.222.4.0/22 Virtual infrastructure 1,024
92.249.52.0/22 Mainstream doo Beograd 1,024
185.29.100.0/22 Virtual infrastructure 1,024
185.167.144.0/22 Mainstream Cloud 1,024
188.93.120.0/22 Mainstream doo Beograd 1,024
91.185.218.0/23 Enterprise Cloud 512
87.237.201.0/24 Virtual Infrastructure 256
87.237.202.0/24 Virtual Infrastructure 256
87.237.203.0/24 Virtual Infrastructure 256
87.237.204.0/24 Virtual Infrastructure 256
87.237.205.0/24 Mainstream Enterprise Cloud 256
87.237.206.0/24 Virtual infrastructure 256
87.237.207.0/24 Virtual infrastructure 256
91.185.199.0/24 Enterprise Cloud 256
91.185.223.0/24 Enterprise Cloud 256
91.222.4.0/24 Virtual infrastructure 256
91.222.5.0/24 Virtual infrastructure 256
91.222.6.0/24 Virtual infrastructure 256
91.222.7.0/24 Virtual infrastructure 256
92.249.53.0/24 Virtual infrastructure 256
185.29.100.0/24 Virtual infrastructure 256
185.29.101.0/24 Virtual infrastructure 256
185.29.102.0/24 Virtual infrastructure 256
185.29.103.0/24 Virtual infrastructure 256
185.167.146.0/24 Mainstream doo Beograd 256
185.167.147.0/24 Mainstream doo Beograd 256
185.168.19.0/24 Kancelarija za informacione tehnologije i elektronsku upravu 256
188.93.120.0/24 Virtual Infrastructure 256
188.93.121.0/24 Virtual Infrastructure 256
188.93.122.0/24 Virtual infrastructure 256
188.93.123.0/24 Virtual infrastructure 256
212.72.214.0/24 Vivacom Bulgaria EAD 256
213.91.181.0/24 Vivacom Bulgaria EAD 256

Netblock Company
2a04:2e40::/29 Mainstream doo Beograd
2a04:2e40::/34 Mainstream doo Beograd
2a04:2e40:4000::/34 Mainstream doo Beograd
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WHOIS Details

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                                                ASHandle:       AS51859
                                                OrgID:          AS51859
                                                ASName:         AS51859
                                                ASNumber:       AS51859
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 929 domain names hosted across 244 IP addresses on this ASN.

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IP Address Domain Domains on this IP
87.237.203.194 ██████████ 310
87.237.200.6 ██████████ 61
188.93.122.55 ██████████ 40
91.222.6.103 █████████ 17
185.29.102.100 ██████████ 17
185.29.100.194 ██████████ 17
185.29.102.14 ██████████ 15
185.29.102.213 ██████████ 12
185.29.102.75 ██████████ 10
185.29.102.216 ██████████ 10

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Peers

There are 7 peers for this ASN.

Peers Name
AS13004 Serbian Open Exchange DOO
AS15958 CETINdoo-NET
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS3212 Telemach Slovenija d.o.o.
AS8400 TELEKOM SRBIJA a.d.
AS8866 Vivacom Bulgaria EAD
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ASN API & Database

Upstreams

There are 6 upstreams for this ASN.

upstreams Name
AS15958 CETINdoo-NET
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
AS31042 Serbia BroadBand-Srpske Kablovske mreze d.o.o.
AS3212 Telemach Slovenija d.o.o.
AS8400 TELEKOM SRBIJA a.d.
AS8866 Vivacom Bulgaria EAD
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
87.237.201.132 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
91.214.200.0 AS51859 Mainstream doo Beograd 4.01ms from Belgrade, RS
91.222.5.249 AS51859 Mainstream doo Beograd 0.54ms from Belgrade, RS
188.93.123.84 AS51859 Mainstream doo Beograd 0.56ms from Belgrade, RS
185.168.19.132 AS51859 Mainstream doo Beograd 0.52ms from Belgrade, RS
87.237.204.122 AS51859 Mainstream doo Beograd 0.52ms from Belgrade, RS
87.237.202.211 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
91.185.219.16 AS51859 Mainstream doo Beograd 0.70ms from Ljubljana, SI
188.93.121.30 AS51859 Mainstream doo Beograd 0.48ms from Belgrade, RS
188.93.120.1 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
92.249.55.54 AS51859 Mainstream doo Beograd 0.35ms from Belgrade, RS
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 1.11ms from Belgrade, RS
188.93.122.15 AS51859 Mainstream doo Beograd 0.63ms from Belgrade, RS
212.72.214.70 AS51859 Mainstream doo Beograd 0.68ms from Sofia, BG
185.29.103.195 AS51859 Mainstream doo Beograd 0.44ms from Belgrade, RS
185.167.144.77 AS51859 Mainstream doo Beograd 0.54ms from Sofia, BG
185.167.146.139 AS51859 Mainstream doo Beograd 0.66ms from Sofia, BG
185.29.100.19 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
91.222.7.7 AS51859 Mainstream doo Beograd 0.54ms from Belgrade, RS
91.185.199.67 AS51859 Mainstream doo Beograd 0.60ms from Ljubljana, SI
87.237.207.250 AS51859 Mainstream doo Beograd 0.56ms from Belgrade, RS
87.237.205.73 AS51859 Mainstream doo Beograd 1.03ms from Belgrade, RS
185.167.147.32 AS51859 Mainstream doo Beograd 0.59ms from Sofia, BG
87.237.203.193 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
91.185.218.15 AS51859 Mainstream doo Beograd 0.67ms from Ljubljana, SI

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
20.96.180.3 AS8075 Microsoft Corporation 0.25ms from Boydton, US
204.209.128.3 AS20119 Arrow Group Inc. 0.44ms from Calgary, CA
122.160.178.179 AS24560 Bharti Airtel Ltd., Telemedia Services 1.69ms from Delhi, IN
183.17.145.99 AS4134 CHINANET-BACKBONE 1.89ms from Guangzhou, CN
109.156.123.211 AS2856 British Telecommunications PLC 5.86ms from London, GB
3.165.65.131 AS16509 Amazon.com, Inc. 0.07ms from Manila, PH
66.176.122.35 AS7922 Comcast Cable Communications, LLC 7.11ms from Miami, US
126.34.134.115 AS17676 SoftBank Corp. 3.66ms from Osaka, JP
218.149.132.115 AS38135 KDB Life Insurance Co.,Ltd 1.98ms from Seoul, KR
121.141.188.19 AS4766 Korea Telecom 1.52ms from Seoul, KR
61.227.136.195 AS3462 Data Communication Business Group 5.40ms from Taichung, TW
99.227.159.99 AS812 Rogers Communications Canada Inc. 5.02ms from Toronto, CA
31.185.93.195 AS39642 Norlys Digital A/S 1.30ms from Tønder, DK
72.214.68.195 AS22773 Cox Communications Inc. 5.65ms from Ashburn, US
130.149.230.35 AS680 Verein zur Foerderung eines Deutschen Forschungsnetzes e.V. 0.91ms from Berlin, DE
91.75.0.3 AS15802 Emirates Integrated Telecommunications Company PJSC 2.96ms from Dubai, AE
5.132.254.3 AS35753 ITC AS number 1.21ms from Jeddah, SA
31.7.193.3 AS56635 XENYA inzeniring, proizvodnja in trgovina, d.o.o. Ljubljana 0.22ms from Ljubljana, SI
46.208.150.35 AS6871 Plusnet 7.31ms from London, GB
81.36.31.131 AS3352 TELEFONICA DE ESPANA S.A.U. 6.55ms from Madrid, ES
185.102.204.3 AS34471 Free Technologies Excom S.L. 0.14ms from Madrid, ES
218.38.189.19 AS9318 SK Broadband Co Ltd 1.55ms from Seoul, KR
52.193.31.243 AS16509 Amazon.com, Inc. 0.30ms from Tokyo, JP
221.44.131.3 AS17676 SoftBank Corp. 3.58ms from Tokyo, JP
80.68.227.19 AS49242 Internet Union Sp. z o.o. 4.85ms from Warsaw, PL

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this ASN. Learn more.

$
traceroute -a -n -q1 -f3 87.237.203.181
traceroute to 87.237.203.181 (87.237.203.181): 64 hops max, 52 byte packets
4 [AS8400] 93.87.21.214 0.501 ms
Measurement taken from IPinfo ProbeNet in Belgrade, RS
On

Related Networks

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 AS51859 at robtex.

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