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 931
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 3 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 931 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 ██████████ 313
87.237.200.6 ██████████ 61
188.93.122.55 ██████████ 39
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
185.29.102.80 ██████████ 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 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

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

IP Address ASN Details
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 1.03ms from Belgrade, RS
185.29.101.82 AS51859 Mainstream doo Beograd 0.38ms from Belgrade, RS
91.222.7.253 AS51859 Mainstream doo Beograd 0.56ms from Belgrade, RS
185.29.103.195 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
185.29.100.120 AS51859 Mainstream doo Beograd 0.45ms from Belgrade, RS
188.93.120.1 AS51859 Mainstream doo Beograd 0.42ms from Belgrade, RS
91.222.5.249 AS51859 Mainstream doo Beograd 0.60ms from Belgrade, RS
185.167.147.10 AS51859 Mainstream doo Beograd 0.60ms from Sofia, BG
87.237.202.211 AS51859 Mainstream doo Beograd 0.53ms from Belgrade, RS
91.185.218.50 AS51859 Mainstream doo Beograd 5.23ms from Vienna, AT
87.237.206.4 AS51859 Mainstream doo Beograd 0.38ms from Belgrade, RS
91.185.199.70 AS51859 Mainstream doo Beograd 5.08ms from Vienna, AT
91.222.4.16 AS51859 Mainstream doo Beograd 0.52ms from Belgrade, RS
91.214.200.0 AS51859 Mainstream doo Beograd 3.98ms from Belgrade, RS
87.237.205.10 AS51859 Mainstream doo Beograd 1.04ms from Belgrade, RS
188.93.123.91 AS51859 Mainstream doo Beograd 0.63ms from Belgrade, RS
87.237.204.121 AS51859 Mainstream doo Beograd 0.61ms from Belgrade, RS
91.185.219.41 AS51859 Mainstream doo Beograd 5.57ms from Vienna, AT
185.168.19.129 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
87.237.203.75 AS51859 Mainstream doo Beograd 0.38ms from Belgrade, RS
91.222.6.185 AS51859 Mainstream doo Beograd 0.57ms from Belgrade, RS
87.237.207.251 AS51859 Mainstream doo Beograd 0.56ms from Belgrade, RS
185.29.102.141 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
188.93.122.1 AS51859 Mainstream doo Beograd 0.58ms from Belgrade, RS
188.93.121.9 AS51859 Mainstream doo Beograd 0.57ms from Belgrade, RS

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
52.4.17.131 AS14618 Amazon.com, Inc. 0.60ms from Ashburn, US
193.224.230.227 AS1955 KIFU (Governmental Info Tech Development Agency) 0.57ms from Budapest, HU
169.48.221.51 AS36351 IBM Cloud 0.83ms from Dallas, US
90.198.180.211 AS5607 Sky UK Limited 9.02ms from London, GB
176.80.35.3 AS3352 TELEFONICA DE ESPANA S.A.U. 18.38ms from Madrid, ES
81.43.36.99 AS3352 TELEFONICA DE ESPANA S.A.U. 3.30ms from Madrid, ES
208.71.187.3 AS11807 Divertissements GameLoft Inc 0.88ms from Montreal, CA
66.207.37.179 AS53365 Webair Internet Development Company, Inc 1.56ms from Montreal, CA
3.7.122.227 AS16509 Amazon.com, Inc. 0.16ms from Mumbai, IN
159.65.252.163 AS14061 DigitalOcean, LLC 0.56ms from New York City, US
24.187.130.163 AS6128 Cablevision Systems Corp. 8.21ms from New York City, US
79.243.103.179 AS3320 Deutsche Telekom AG 6.42ms from Nuernberg, DE
184.85.248.67 AS21342 Akamai International B.V. 0.08ms from Perth, AU
212.70.174.3 AS208284 Valsts sabiedriba ar ierobezotu atbildibu "Latvijas Vides, geologijas un meteorologijas centrs" 0.55ms from Riga, LV
178.44.132.35 AS12389 PJSC Rostelecom 14.70ms from Samara, RU
187.217.199.211 AS8151 UNINET 13.42ms from Santiago de Queretaro, MX
122.49.79.19 AS9286 KINX 3.03ms from Seoul, KR
1.251.59.3 AS9318 SK Broadband Co Ltd 5.04ms from Seoul, KR
47.103.87.227 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 4.02ms from Shanghai, CN
123.155.141.115 AS4837 CHINA UNICOM China169 Backbone 5.55ms from Shanghai, CN
179.102.60.163 AS26599 TELEFÔNICA BRASIL S.A 3.26ms from São Paulo, BR
121.109.137.227 AS2516 KDDI CORPORATION 7.38ms from Tokyo, JP
110.66.166.227 AS2527 Sony Network Communications Inc. 1.98ms from Tokyo, JP
111.46.24.83 AS9808 China Mobile Communications Group Co., Ltd. 3.23ms from Wuhan, CN
42.225.207.195 AS4837 CHINA UNICOM China169 Backbone 4.86ms from Zhengzhou, CN

Traceroute

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

$
traceroute -a -n -q1 -f2 91.185.219.19
traceroute to 91.185.219.19 (91.185.219.19): 64 hops max, 52 byte packets
2 [] 193.27.15.94 5.405 ms
3 [AS9009] 176.10.83.206 5.063 ms
4 *
5 *
6 *
7 [AS6939] 184.104.200.6 154.475 ms
8 [AS51859] 91.185.219.19 165.726 ms
Measurement taken from IPinfo ProbeNet in Singapore, SG
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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