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 973
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 973 domain names hosted across 245 IP addresses on this ASN.

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IP Address Domain Domains on this IP
87.237.203.194 ██████████ 352
188.93.122.55 ██████████ 38
185.29.100.194 ██████████ 17
185.29.102.100 ██████████ 17
91.222.6.103 ██████████ 17
185.29.102.14 ██████████ 14
185.29.102.213 █████████ 12
185.29.102.216 ██████ 10
185.29.102.80 ██████████ 10
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 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
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 1.06ms from Belgrade, RS
188.93.122.26 AS51859 Mainstream doo Beograd 0.58ms from Belgrade, RS
87.237.205.21 AS51859 Mainstream doo Beograd 1.04ms from Belgrade, RS
87.237.201.134 AS51859 Mainstream doo Beograd 0.56ms from Belgrade, RS
185.168.19.28 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
2a04:2e40:300::eeee:2 AS51859 Mainstream doo Beograd 0.84ms from Belgrade, RS
91.222.5.249 AS51859 Mainstream doo Beograd 0.62ms from Belgrade, RS
87.237.206.190 AS51859 Mainstream doo Beograd 0.38ms from Belgrade, RS
185.29.103.195 AS51859 Mainstream doo Beograd 0.41ms from Belgrade, RS
87.237.204.121 AS51859 Mainstream doo Beograd 0.64ms from Belgrade, RS
185.167.146.199 AS51859 Mainstream doo Beograd 0.60ms from Sofia, BG
185.29.100.203 AS51859 Mainstream doo Beograd 0.46ms from Belgrade, RS
188.93.123.50 AS51859 Mainstream doo Beograd 0.66ms from Belgrade, RS
212.72.214.193 AS51859 Mainstream doo Beograd 0.63ms from Sofia, BG
185.29.101.70 AS51859 Mainstream doo Beograd 0.39ms from Belgrade, RS
2a04:2e40:4301::12 AS51859 Mainstream doo Beograd 0.96ms from Belgrade, RS
91.222.7.252 AS51859 Mainstream doo Beograd 0.58ms from Belgrade, RS
91.222.6.254 AS51859 Mainstream doo Beograd 0.56ms from Belgrade, RS
92.249.55.107 AS51859 Mainstream doo Beograd 0.38ms from Belgrade, RS
91.185.218.24 AS51859 Mainstream doo Beograd 5.19ms from Vienna, AT
185.167.144.43 AS51859 Mainstream doo Beograd 0.56ms from Sofia, BG
188.93.120.1 AS51859 Mainstream doo Beograd 0.39ms from Belgrade, RS
91.214.200.0 AS51859 Mainstream doo Beograd 2.15ms from Belgrade, RS
87.237.202.219 AS51859 Mainstream doo Beograd 0.56ms from Belgrade, RS
213.91.181.7 AS51859 Mainstream doo Beograd 0.64ms 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
157.137.236.99 AS31898 Oracle Corporation 0.17ms from Bogota, CO
182.140.169.243 AS38283 CHINANET SiChuan Telecom Internet Data Center 2.23ms from Chengdu, CN
91.75.0.3 AS15802 Emirates Integrated Telecommunications Company PJSC 2.94ms from Dubai, AE
5.230.205.19 AS12586 GHOSTnet GmbH 0.47ms from Frankfurt am Main, DE
27.36.147.99 AS17816 China Unicom IP network China169 Guangdong province 3.45ms from Guangzhou, CN
171.227.4.227 AS7552 Viettel Group 9.86ms from Ho Chi Minh City, VN
46.50.207.131 AS15774 Limited Liability Company TTK-Svyaz 5.37ms from Novosibirsk, RU
176.168.46.19 AS5410 Bouygues Telecom SA 7.45ms from Paris, FR
88.103.182.51 AS5610 O2 Czech Republic, a.s. 1.20ms from Prague, CZ
148.255.164.227 AS6400 Compañía Dominicana de Teléfonos S. A. 6.57ms from Santo Domingo, DO
209.17.37.131 AS1219 Oracle Corporation 0.31ms from Seattle, US
58.33.80.163 AS4812 China Telecom (Group) 3.65ms from Shanghai, CN
103.54.233.19 AS58580 Fastrack Technology 0.17ms from Sydney, AU
123.110.20.211 AS131596 TBC 9.49ms from Taipei, TW
197.10.175.147 AS328880 STE INTERNET SMART SOLUTIONS 1.38ms from Tunis, TN
77.26.48.3 AS12334 R Cable y Telecable Telecomunicaciones, S.A.U. 0.38ms from A Coruna, ES
8.147.118.131 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 0.75ms from Beijing, CN
207.182.158.147 AS10297 eNET Inc. 3.65ms from Cincinnati, US
181.92.64.67 AS7303 Telecom Argentina S.A. 9.55ms from Cordoba, AR
113.28.200.243 AS4760 HKT Limited 8.11ms from Hong Kong, HK
82.23.50.19 AS5511 Orange S.A. 0.12ms from Paris, FR
192.251.183.3 AS395346 Bonneville County Idaho 7.85ms from Salt Lake City, US
222.98.146.3 AS4766 Korea Telecom 1.97ms from Seoul, KR
111.243.217.83 AS3462 Data Communication Business Group 3.96ms from Taipei, TW
133.209.176.51 AS2518 BIGLOBE Inc. 19.17ms from Tokyo, JP

Traceroute

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

$
traceroute -a -n -q1 91.222.5.160
traceroute to 91.222.5.160 (91.222.5.160): 64 hops max, 52 byte packets
1 [AS202422] 45.82.102.2 0.151 ms
2 *
3 *
4 [AS51859] 91.222.5.160 21.469 ms
Measurement taken from IPinfo ProbeNet in Bucharest, RO
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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