AS number 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 780
Number of IPv4 9,984
Number of IPv6 673,439,381,371,246,869,545,123,577,856
ASN type Hosting
Registry ripe
Allocated 15 years ago on Nov 17, 2010
Updated a month 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 780 domain names hosted across 239 IP addresses on this ASN.

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IP Address Domain Domains on this IP
87.237.203.194 ██████████ 162
87.237.200.6 ██████████ 59
188.93.122.55 ██████████ 40
185.29.102.100 ██████████ 17
91.222.6.103 █████████ 17
185.29.100.194 ██████████ 17
185.29.102.14 ██████████ 17
185.29.102.213 █████████ 12
185.167.146.179 █████ 11
185.29.102.75 ██████████ 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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Upstreams

There are 5 upstreams for this ASN.

upstreams Name
AS15958 CETINdoo-NET
AS21215 UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd
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

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

IP Address ASN Details
91.214.200.0 AS51859 Mainstream doo Beograd 2.19ms from Belgrade, RS
213.91.181.9 AS51859 Mainstream doo Beograd 0.67ms from Sofia, BG
87.237.204.121 AS51859 Mainstream doo Beograd 0.50ms from Belgrade, RS
188.93.122.43 AS51859 Mainstream doo Beograd 0.64ms from Belgrade, RS
87.237.203.193 AS51859 Mainstream doo Beograd 0.40ms from Belgrade, RS
91.185.219.1 AS51859 Mainstream doo Beograd 0.76ms from Ljubljana, SI
212.72.214.208 AS51859 Mainstream doo Beograd 0.74ms from Sofia, BG
87.237.207.251 AS51859 Mainstream doo Beograd 0.50ms from Belgrade, RS
91.185.199.68 AS51859 Mainstream doo Beograd 0.63ms from Ljubljana, SI
185.167.147.2 AS51859 Mainstream doo Beograd 0.73ms from Sofia, BG
188.93.123.184 AS51859 Mainstream doo Beograd 0.53ms from Belgrade, RS
185.29.101.99 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
87.237.202.211 AS51859 Mainstream doo Beograd 0.48ms from Belgrade, RS
185.29.102.191 AS51859 Mainstream doo Beograd 0.48ms from Belgrade, RS
91.222.5.249 AS51859 Mainstream doo Beograd 0.54ms from Belgrade, RS
185.167.146.74 AS51859 Mainstream doo Beograd 0.66ms from Sofia, BG
188.93.120.1 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
87.237.206.209 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
87.237.205.52 AS51859 Mainstream doo Beograd 1.03ms from Belgrade, RS
185.29.103.195 AS51859 Mainstream doo Beograd 0.44ms from Belgrade, RS
91.222.4.16 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
188.93.121.30 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
185.167.144.43 AS51859 Mainstream doo Beograd 0.61ms from Sofia, BG
185.168.19.127 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
91.185.218.17 AS51859 Mainstream doo Beograd 0.69ms 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
110.244.67.163 AS4837 CHINA UNICOM China169 Backbone 8.85ms from Beijing, CN
24.91.97.67 AS7922 Comcast Cable Communications, LLC 6.80ms from Boston, US
184.64.38.83 AS6327 Shaw Communications Inc. 4.79ms from Calgary, CA
5.103.99.227 AS44869 FIBIA P/S 0.59ms from Copenhagen, DK
191.220.100.83 AS8167 V tal 1.01ms from Curitiba, BR
73.59.150.67 AS7922 Comcast Cable Communications, LLC 12.28ms from Dallas, US
91.21.230.67 AS3320 Deutsche Telekom AG 2.75ms from Frankfurt am Main, DE
62.53.238.131 AS6805 Telefonica Germany GmbH & Co.OHG 0.57ms from Frankfurt am Main, DE
192.234.160.3 AS40716 DOT.Comm 2.00ms from Lincoln, US
62.99.25.3 AS12338 Euskaltel S.A. 8.27ms from Madrid, ES
151.79.136.83 AS1267 WIND TRE S.P.A. 4.33ms from Milan, IT
187.78.158.211 AS7738 V tal 1.88ms from Rio de Janeiro, BR
187.38.47.67 AS28573 Claro NXT Telecomunicacoes Ltda 5.59ms from Sao Paulo, BR
117.52.155.35 AS3786 LG DACOM Corporation 0.38ms from Seoul, KR
203.236.119.51 AS4766 Korea Telecom 1.03ms from Seoul, KR
126.36.130.67 AS17676 SoftBank Corp. 3.56ms from Tokyo, JP
203.138.129.19 AS2514 NTT PC Communications, Inc. 1.38ms from Tokyo, JP
13.71.136.179 AS8075 Microsoft Corporation 0.19ms from Tokyo, JP
154.243.216.51 AS36947 Telecom Algeria 10.81ms from Algiers, DZ
98.24.124.83 AS11426 Charter Communications Inc 5.99ms from Charlotte, US
122.160.178.179 AS24560 Bharti Airtel Ltd., Telemedia Services 1.96ms from Delhi, IN
216.155.20.3 AS39855 Mod Mission Critical LLC 0.20ms from Frankfurt am Main, DE
31.181.219.83 AS12389 PJSC Rostelecom 1.11ms from Krasnodar, RU
73.56.176.19 AS7922 Comcast Cable Communications, LLC 7.13ms from Miami, US
186.210.184.19 AS53006 ALGAR TELECOM S/A 4.81ms from Osasco, BR

Traceroute

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

$
traceroute -a -n -q1 185.29.103.194
traceroute to 185.29.103.194 (185.29.103.194): 64 hops max, 52 byte packets
1 [AS9009] 152.89.160.37 0.559 ms
2 *
3 [] 37.120.128.190 0.241 ms
4 [] 185.1.27.37 2.807 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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