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 25 days 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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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

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

IP Address ASN Details
87.237.206.209 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
92.249.55.123 AS51859 Mainstream doo Beograd 0.36ms from Belgrade, RS
91.185.219.1 AS51859 Mainstream doo Beograd 0.76ms from Ljubljana, SI
185.29.103.195 AS51859 Mainstream doo Beograd 0.44ms from Belgrade, RS
87.237.204.121 AS51859 Mainstream doo Beograd 0.50ms from Belgrade, RS
87.237.205.52 AS51859 Mainstream doo Beograd 1.03ms from Belgrade, RS
91.185.199.68 AS51859 Mainstream doo Beograd 0.63ms from Ljubljana, SI
2a04:2e40:4301::12 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
2a04:2e40:300::eeee:2 AS51859 Mainstream doo Beograd 0.76ms from Belgrade, RS
87.237.201.133 AS51859 Mainstream doo Beograd 0.44ms from Belgrade, RS
87.237.207.251 AS51859 Mainstream doo Beograd 0.50ms from Belgrade, RS
91.214.200.0 AS51859 Mainstream doo Beograd 2.19ms from Belgrade, RS
188.93.123.184 AS51859 Mainstream doo Beograd 0.53ms from Belgrade, RS
213.91.181.9 AS51859 Mainstream doo Beograd 0.67ms from Sofia, BG
87.237.202.211 AS51859 Mainstream doo Beograd 0.48ms from Belgrade, RS
212.72.214.208 AS51859 Mainstream doo Beograd 0.74ms from Sofia, BG
185.29.101.99 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
185.29.100.21 AS51859 Mainstream doo Beograd 0.47ms 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
185.167.147.2 AS51859 Mainstream doo Beograd 0.73ms from Sofia, BG
185.168.19.127 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
91.222.6.185 AS51859 Mainstream doo Beograd 0.59ms from Belgrade, RS
185.167.144.43 AS51859 Mainstream doo Beograd 0.61ms from Sofia, BG

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
162.218.101.163 AS11512 Parsec Data Management Inc. 9.93ms from Calgary, CA
85.23.238.243 AS16086 DNA Oyj 5.40ms from Helsinki, FI
217.20.176.211 AS1820 WNET TELECOM USA Corp. 0.51ms from Kyiv, UA
178.208.218.115 AS8301 Gibtelecom Ltd. 10.84ms from Madrid, ES
190.185.104.35 AS52438 PLANISYS S.A. 0.17ms from Miami, US
200.150.149.115 AS15830 Equinix (EMEA) Acquisition Enterprises B.V. 1.39ms from Rio de Janeiro, BR
52.9.65.163 AS16509 Amazon.com, Inc. 0.14ms from San Jose, US
124.197.220.163 AS9971 SK Broadband Co Ltd 1.65ms from Seoul, KR
203.220.113.163 AS9942 SOUL Converged Communications Australia 10.45ms from Sydney, AU
46.214.254.195 AS48161 NEXTGEN COMMUNICATIONS SRL 7.09ms from Timisoara, RO
219.106.213.211 AS10010 TOKAI Communications Corporation 8.14ms from Tokyo, JP
144.130.12.3 AS1221 Telstra Limited 17.18ms from Brisbane, AU
181.30.155.3 AS7303 Telecom Argentina S.A. 1.09ms from Buenos Aires, AR
103.10.168.243 AS131787 Keltron House 10.64ms from Chennai, IN
98.213.60.163 AS7922 Comcast Cable Communications, LLC 8.21ms from Chicago, US
75.217.75.147 AS6167 Verizon Business 18.57ms from Dallas, US
130.45.18.51 AS7459 Grande Communications Networks, LLC 13.80ms from Dallas, US
23.40.212.179 AS16625 Akamai Technologies, Inc. 0.14ms from Dublin, IE
84.181.53.131 AS3320 Deutsche Telekom AG 2.90ms from Frankfurt am Main, DE
119.132.87.131 AS4134 CHINANET-BACKBONE 11.32ms from Hong Kong, HK
68.207.20.99 AS11427 Charter Communications Inc 10.53ms from Houston, US
188.230.242.19 AS34779 T-2, d.o.o. 5.19ms from Ljubljana, SI
45.154.57.3 AS201446 Soluciones web on line s.l. 0.42ms from Madrid, ES
88.20.63.3 AS3352 TELEFONICA DE ESPANA S.A.U. 10.17ms from Madrid, ES
83.49.240.227 AS3352 TELEFONICA DE ESPANA S.A.U. 6.78ms from Madrid, ES

Traceroute

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

$
traceroute -a -n -q1 -f3 -m6 91.214.201.52
traceroute to 91.214.201.52 (91.214.201.52): 6 hops max, 52 byte packets
3 [AS749] 21.252.32.1 1.1 ms
4 *
5 *
6 *
Measurement taken from IPinfo ProbeNet in Zhongwei, CN
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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