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 10 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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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
87.237.204.122 AS51859 Mainstream doo Beograd 0.54ms from Belgrade, RS
92.249.55.194 AS51859 Mainstream doo Beograd 0.35ms from Belgrade, RS
91.185.199.5 AS51859 Mainstream doo Beograd 0.62ms from Ljubljana, SI
87.237.205.65 AS51859 Mainstream doo Beograd 0.68ms from Belgrade, RS
87.237.201.132 AS51859 Mainstream doo Beograd 0.45ms from Belgrade, RS
213.91.181.1 AS51859 Mainstream doo Beograd 0.66ms from Sofia, BG
185.29.100.252 AS51859 Mainstream doo Beograd 0.49ms from Belgrade, RS
185.29.101.65 AS51859 Mainstream doo Beograd 0.42ms from Belgrade, RS
87.237.206.8 AS51859 Mainstream doo Beograd 0.42ms from Belgrade, RS
91.214.200.0 AS51859 Mainstream doo Beograd 2.02ms from Belgrade, RS
91.222.6.254 AS51859 Mainstream doo Beograd 0.42ms from Belgrade, RS
188.93.123.51 AS51859 Mainstream doo Beograd 0.55ms from Belgrade, RS
87.237.207.251 AS51859 Mainstream doo Beograd 0.52ms from Belgrade, RS
212.72.214.75 AS51859 Mainstream doo Beograd 0.69ms from Sofia, BG
91.222.5.226 AS51859 Mainstream doo Beograd 0.51ms from Belgrade, RS
185.167.146.238 AS51859 Mainstream doo Beograd 0.66ms from Sofia, BG
185.29.102.243 AS51859 Mainstream doo Beograd 0.45ms from Belgrade, RS
2a04:2e40:300::eeee:1 AS51859 Mainstream doo Beograd 0.84ms from Belgrade, RS
2a04:2e40:4301::12 AS51859 Mainstream doo Beograd 1.00ms from Belgrade, RS
188.93.120.1 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
185.29.103.195 AS51859 Mainstream doo Beograd 0.43ms from Belgrade, RS
91.185.219.18 AS51859 Mainstream doo Beograd 0.68ms from Ljubljana, SI
185.168.19.127 AS51859 Mainstream doo Beograd 0.47ms from Belgrade, RS
91.185.218.38 AS51859 Mainstream doo Beograd 0.67ms from Ljubljana, SI
2a04:2e40:4202::1 AS51859 Mainstream doo Beograd 1.06ms 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
190.60.229.35 AS18747 IFX Corporation 0.75ms from Bogota, CO
67.158.170.179 AS32645 Consolidated Communications, Inc. 10.85ms from Boston, US
74.7.35.163 AS8075 Microsoft Corporation 2.43ms from Boydton, US
170.17.4.3 AS26039 Athene Annuity and Life Company 2.17ms from Des Moines, US
88.234.5.147 AS9121 Turk Telekomunikasyon Anonim Sirketi 5.58ms from Istanbul, TR
151.21.140.147 AS1267 WIND TRE S.P.A. 1.77ms from Milan, IT
68.52.169.35 AS7922 Comcast Cable Communications, LLC 7.16ms from Murfreesboro, US
217.142.233.227 AS31898 Oracle Corporation 0.21ms from Osaka, JP
177.74.97.131 AS265467 LOCALL TELECOM LTDA. - ME 14.32ms from Osasco, BR
70.171.234.179 AS22773 Cox Communications Inc. 2.03ms from Phoenix, US
67.59.85.3 AS397422 MINET 2.43ms from Portland, US
75.101.162.51 AS14618 Amazon.com, Inc. 0.21ms from Reston, US
34.231.147.67 AS14618 Amazon.com, Inc. 0.37ms from Reston, US
49.165.57.243 AS17858 LG POWERCOMM 2.74ms from Seoul, KR
191.239.80.19 AS8075 Microsoft Corporation 1.53ms from Sydney, AU
126.217.200.131 AS17676 SoftBank Corp. 3.20ms from Tokyo, JP
20.13.99.227 AS8075 Microsoft Corporation 0.23ms from Amsterdam, NL
151.233.87.83 AS58224 Iran Telecommunication Company PJS 14.19ms from Az Za`ayin, QA
171.221.173.179 AS4134 CHINANET-BACKBONE 1.91ms from Chengdu, CN
65.19.225.35 AS8057 Vision Net, Inc. 15.90ms from Denver, US
87.245.30.67 AS9145 EWE TEL GmbH 7.53ms from Hamburg, DE
82.16.45.51 AS5089 Virgin Media Limited 4.54ms from London, GB
76.50.25.243 AS20001 Charter Communications Inc 6.56ms from Los Angeles, US
62.37.232.243 AS12479 Orange Espagne SA 0.58ms from Madrid, ES
208.71.187.3 AS11807 Divertissements GameLoft Inc 0.83ms from Montreal, CA

Traceroute

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

$
traceroute -a -n -q1 -f5 -m10 91.214.202.116
traceroute to 91.214.202.116 (91.214.202.116): 10 hops max, 52 byte packets
5 [] 195.66.225.141 186.534 ms
6 *
7 [AS21215] 185.81.60.51 152.391 ms
8 *
9 *
10 *
Measurement taken from IPinfo ProbeNet in Abidjan, CI
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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