Autonomous System details

AS20911

Net-Surf.net Ltd. · netsurf.bg

Bulgaria

BitTorrent

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AS20911 – Net-Surf.net Ltd.

Field	Value
Country	Bulgaria
Website	netsurf.bg
Hosted domains	790
IPv4 addresses	36,096
IPv6 addresses	0
ASN type	ISP
Registry	ripe
Allocated	24 years ago on Feb 04, 2002
Updated	3 months ago on Dec 15, 2025

Netblock	Company	Num of IPs
46.229.192.0/20	Net-Surf.net Ltd.	4,096
178.254.240.0/20	NETSURF dynamic PPPoE pools	4,096
78.90.248.0/21	SWNET PPPoE	2,048
95.111.120.0/21	NETSURF Networks for new region	2,048
178.254.216.0/21	Net-Surf.net Ltd. broadband services	2,048
178.254.232.0/21	NETSURF dynamic PPPoE pools	2,048
46.229.196.0/22	GPON deployment in city of Vratza	1,024
46.229.200.0/22	NetSurf.net GPON services in city of Vraca	1,024
80.72.88.0/22	Net-Surf.net Ltd.	1,024
93.152.248.0/22	Net-Surf.net Ltd.	1,024
178.254.204.0/22	Net-Surf.net Ltd. broadband services	1,024
178.254.208.0/22	Net-Surf.net Ltd. broadband services	1,024
178.254.228.0/22	NETSURF dynamic PPPoE pools	1,024
195.230.28.0/22	TEA Ltd.	1,024
45.90.90.0/23	Net-Surf.net Ltd. broadband services	512
46.229.192.0/23	PPPoE in City of Valchedram	512
84.21.174.0/23	Net-Surf.net Ltd. GPON services	512
87.120.118.0/23	Net-Surf.net Ltd. broadband services	512
87.120.122.0/23	Net-Surf.net Ltd. broadband services	512
87.121.70.0/23	Net-Surf.net Ltd. broadband services	512
93.123.26.0/23	Net-Surf.net Ltd.	512
93.152.228.0/23	Net-Surf.net Ltd.	512
93.152.252.0/23	Net-Surf.net Ltd.	512
93.152.254.0/23	Net-Surf.net Ltd.	512
94.156.162.0/23	Net-Surf.net Ltd. broadband services	512
178.254.194.0/23	Net-Surf.net Ltd. broadband services	512
178.254.196.0/23	Net-Surf.net Ltd. broadband services	512
178.254.198.0/23	Net-Surf.net Ltd. broadband services	512
178.254.200.0/23	Net-Surf.net Ltd. broadband services	512
178.254.212.0/23	Net-Surf.net Ltd. broadband services	512
178.254.224.0/23	NETSURF dynamic PPPoE pools	512
193.42.34.0/23	Neterra Ltd.	512
195.230.28.0/23	TEA Ltd.	512
45.90.90.0/24	Net-Surf.net Ltd. broadband services	256
45.90.91.0/24	Net-Surf.net Ltd. broadband services	256
46.229.192.0/24	PPPoE in City of Valchedram	256
46.229.193.0/24	PPPoE in City of Valchedram	256
46.229.194.0/24	PPPoE in City of Valchedram	256
46.229.195.0/24	Berk PPPoE	256
46.229.196.0/24	GPON deployment in city of Vratza	256
46.229.197.0/24	GPON deployment in city of Vratza	256
46.229.198.0/24	GPON deployment in city of Vratza	256
46.229.199.0/24	GPON deployment in city of Vratza	256
46.229.200.0/24	NetSurf.net GPON services in city of Vraca	256
46.229.201.0/24	NetSurf.net GPON services in city of Vraca	256
46.229.202.0/24	NetSurf.net GPON services in city of Vraca	256
46.229.203.0/24	NetSurf.net GPON services in city of Vraca	256
46.229.204.0/24	Net-Surf.net Ltd.	256
46.229.205.0/24	Corporate clients	256
46.229.206.0/24	connect /30 in Sofia	256
46.229.207.0/24	Kozl	256
78.90.248.0/24	SWNET PPPoE	256
78.90.249.0/24	SWNET PPPoE	256
78.90.250.0/24	SWNET PPPoE	256
78.90.251.0/24	SWNET PPPoE	256
78.90.252.0/24	SWNET PPPoE	256
78.90.253.0/24	SWNET PPPoE	256
78.90.254.0/24	SWNET PPPoE	256
78.90.255.0/24	SWNET PPPoE	256
78.128.40.0/24	Net-Surf.net Ltd.	256
79.124.9.0/24	Evora NET	256
80.72.88.0/24	Net-Surf.net Ltd.	256
80.72.89.0/24	Net-Surf.net Ltd.	256
80.72.90.0/24	Net-Surf.net Ltd.	256
80.72.91.0/24	Net-Surf.net Ltd.	256
84.21.174.0/24	Net-Surf.net Ltd. GPON services	256
84.21.175.0/24	Net-Surf.net Ltd. GPON services	256
87.120.118.0/24	Net-Surf.net Ltd. broadband services	256
87.120.119.0/24	Net-Surf.net Ltd. broadband services	256
87.120.122.0/24	Net-Surf.net Ltd. broadband services	256
87.120.123.0/24	Net-Surf.net Ltd. broadband services	256
87.120.124.0/24	Net-Surf.net Ltd. broadband services	256
87.121.70.0/24	Net-Surf.net Ltd. broadband services	256
87.121.71.0/24	Net-Surf.net Ltd. broadband services	256
92.249.50.0/24	Net-Surf.net_Ltd_broadband_services	256
93.123.26.0/24	Net-Surf.net Ltd.	256
93.123.27.0/24	Net-Surf.net Ltd.	256
93.152.228.0/24	Net-Surf.net Ltd.	256
93.152.229.0/24	Net-Surf.net Ltd.	256
93.152.248.0/24	Net-Surf.net Ltd.	256
93.152.249.0/24	Net-Surf.net Ltd.	256
93.152.250.0/24	Net-Surf.net Ltd.	256
93.152.251.0/24	Net-Surf.net Ltd.	256
93.152.252.0/24	Net-Surf.net Ltd.	256
93.152.253.0/24	Net-Surf.net Ltd.	256
93.152.254.0/24	Net-Surf.net Ltd.	256
93.152.255.0/24	Net-Surf.net Ltd.	256
94.156.162.0/24	Net-Surf.net Ltd. broadband services	256
94.156.163.0/24	Net-Surf.net Ltd. broadband services	256
95.111.120.0/24	NETSURF Networks for new region	256
95.111.121.0/24	NETSURF Networks for new region	256
95.111.122.0/24	NETSURF Networks for new region	256
95.111.123.0/24	NETSURF Networks for new region	256
95.111.124.0/24	NETSURF Networks for new region	256
95.111.125.0/24	NETSURF Networks for new region	256
95.111.126.0/24	NETSURF Networks for new region	256
95.111.127.0/24	NETSURF Networks for new region	256
95.214.27.0/24	Net-Surf.net_Ltd_broadband_services	256
178.254.192.0/24	Net-Surf.net Ltd. broadband services	256
178.254.193.0/24	Net-Surf.net Ltd. broadband services	256
178.254.194.0/24	Net-Surf.net Ltd. broadband services	256
178.254.195.0/24	Net-Surf.net Ltd. broadband services	256
178.254.196.0/24	Net-Surf.net Ltd. broadband services	256
178.254.197.0/24	Net-Surf.net Ltd. broadband services	256
178.254.198.0/24	Net-Surf.net Ltd. broadband services	256
178.254.199.0/24	Net-Surf.net Ltd. broadband services	256
178.254.200.0/24	Net-Surf.net Ltd. broadband services	256
178.254.201.0/24	Net-Surf.net Ltd. broadband services	256
178.254.202.0/24	Net-Surf.net Ltd. broadband services	256
178.254.203.0/24	Net-Surf.net Ltd. broadband services	256
178.254.204.0/24	Net-Surf.net Ltd. broadband services	256
178.254.205.0/24	Net-Surf.net Ltd. broadband services	256
178.254.206.0/24	Net-Surf.net Ltd. broadband services	256
178.254.207.0/24	Net-Surf.net Ltd. broadband services	256
178.254.208.0/24	Net-Surf.net Ltd. broadband services	256
178.254.209.0/24	Net-Surf.net Ltd. broadband services	256
178.254.210.0/24	Net-Surf.net Ltd. broadband services	256
178.254.211.0/24	Net-Surf.net Ltd. broadband services	256
178.254.212.0/24	Net-Surf.net Ltd. broadband services	256
178.254.213.0/24	Net-Surf.net Ltd. broadband services	256
178.254.214.0/24	Net-Surf.net Ltd. broadband services	256
178.254.215.0/24	Net-Surf.net Ltd. broadband services	256
178.254.216.0/24	Net-Surf.net Ltd. broadband services	256
178.254.217.0/24	Net-Surf.net Ltd. broadband services	256
178.254.218.0/24	Net-Surf.net Ltd. broadband services	256
178.254.219.0/24	Net-Surf.net Ltd. broadband services	256
178.254.220.0/24	Net-Surf.net Ltd. broadband services	256
178.254.221.0/24	Net-Surf.net Ltd. broadband services	256
178.254.222.0/24	Net-Surf.net Ltd. broadband services	256
178.254.223.0/24	Net-Surf.net Ltd. broadband services	256
178.254.224.0/24	NETSURF dynamic PPPoE pools	256
178.254.225.0/24	NETSURF dynamic PPPoE pools	256
178.254.226.0/24	NETSURF dynamic PPPoE pools	256
178.254.227.0/24	NETSURF dynamic PPPoE pools	256
178.254.228.0/24	NETSURF dynamic PPPoE pools	256
178.254.229.0/24	NETSURF dynamic PPPoE pools	256
178.254.230.0/24	NETSURF dynamic PPPoE pools	256
178.254.231.0/24	NETSURF dynamic PPPoE pools	256
178.254.232.0/24	NETSURF dynamic PPPoE pools	256
178.254.233.0/24	NETSURF dynamic PPPoE pools	256
178.254.234.0/24	NETSURF dynamic PPPoE pools	256
178.254.235.0/24	NETSURF dynamic PPPoE pools	256
178.254.236.0/24	NETSURF dynamic PPPoE pools	256
178.254.237.0/24	NETSURF dynamic PPPoE pools	256
178.254.238.0/24	NETSURF dynamic PPPoE pools	256
178.254.239.0/24	NETSURF dynamic PPPoE pools	256
178.254.240.0/24	NETSURF dynamic PPPoE pools	256
178.254.241.0/24	NETSURF dynamic PPPoE pools	256
178.254.242.0/24	NETSURF dynamic PPPoE pools	256
178.254.243.0/24	NETSURF dynamic PPPoE pools	256
178.254.244.0/24	NETSURF dynamic PPPoE pools	256
178.254.245.0/24	NETSURF dynamic PPPoE pools	256
178.254.246.0/24	NETSURF dynamic PPPoE pools	256
178.254.247.0/24	NETSURF dynamic PPPoE pools	256
178.254.248.0/24	NETSURF dynamic PPPoE pools	256
178.254.249.0/24	NETSURF dynamic PPPoE pools	256
178.254.250.0/24	NETSURF dynamic PPPoE pools	256
178.254.251.0/24	NETSURF dynamic PPPoE pools	256
178.254.252.0/24	NETSURF dynamic PPPoE pools	256
178.254.253.0/24	NETSURF dynamic PPPoE pools	256
178.254.254.0/24	NETSURF dynamic PPPoE pools	256
178.254.255.0/24	NETSURF dynamic PPPoE pools	256
185.95.248.0/24	Net-Surf.net Ltd.	256
185.95.249.0/24	Net-Surf.net Ltd.	256
185.95.250.0/24	Net-Surf.net Ltd.	256
185.95.251.0/24	Net-Surf.net Ltd.	256
193.42.34.0/24	Net-Surf.net Ltd. broadband services	256
193.42.35.0/24	Net-Surf.net Ltd. broadband services	256
194.55.186.0/24	Net-Surf.net_Ltd_broadband_services	256
194.169.175.0/24	Net-Surf.net_Ltd_broadband_services	256
195.230.28.0/24	TEA Ltd.	256
195.230.29.0/24	TEA Ltd.	256
195.230.30.0/24	TEA Ltd.	256
195.230.31.0/24	TEA Ltd.	256

There are no known IPv6 addresses belonging to this network

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IP Ranges API

WHOIS Details

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                                                ASHandle:       AS20911
                                                OrgID:          AS20911
                                                ASName:         AS20911
                                                ASNumber:       AS20911
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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IP WHOIS API & Database

Hosted Domains

There are 790 domain names hosted across 136 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
194.169.175.223	██████████	247
178.254.224.200	██████████	86
194.169.175.192	██████████	46
194.169.175.181	██████████	38
194.169.175.130	██████████	28
95.214.27.222	██████████	27
95.214.27.14	██████████	20
194.169.175.119	██████████	20
194.169.175.225	██████████	15
95.214.27.28	██████████	14

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Hosted Domains API & Database

Peers

There are 55 peers for this ASN.

Peers	Name
AS13004	Serbian Open Exchange DOO
AS137409	GSL Networks Pty LTD
AS14840	BR.Digital Telecom
AS174	Cogent Communications, LLC
AS199524	G-Core Labs S.A.
AS200242	Ember Ana Reimer
AS205112	PHILUNET GmbH
AS206499	LOCIX LIMITED
AS209823	Enki Multimedia EURL
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS212508	Lowhosting services of Davide Gennari
AS24482	SG.GS
AS24961	WIIT AG
AS25091	IP-Max SA
AS25478	iHome LLC
AS263444	Open X Tecnologia Ltda
AS29049	Delta Telecom Ltd
AS3214	xTom GmbH
AS32590	Valve Corporation
AS3303	Swisscom (Switzerland) Ltd
AS34019	Hivane Association
AS34549	meerfarbig GmbH & Co. KG
AS34854	BLAHAJ CLOUD
AS34872	Sarah Rossius trading as Servperso Systems
AS34927	iFog GmbH
AS37721	Virtual Technologies & Solutions
AS39120	Convergenze S.p.A.
AS39122	Blacknight Internet Solutions Limited
AS39351	31173 Services AB
AS41327	Fiber Telecom S.p.A.
AS42541	Fiberby ApS
AS44901	Belcloud LTD
AS48678	PENTECH BILISIM TEKNOLOJILERI SANAYI VE TICARET LIMITED SIRKETi
AS49434	FBW NETWORKS SAS
AS49544	i3D.net B.V
AS50673	Serverius
AS51189	Sharcom Ltd.
AS52055	NetIX Communications JSC
AS53062	ALT \| GRUPO BRASIL TECPAR
AS5405	Inter.link GmbH
AS57050	DreamServer S.R.L.
AS57152	Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERI
AS57344	Telehouse EAD
AS57463	NetIX Communications JSC
AS58057	Securebit AG
AS58299	Openfactory GmbH
AS59900	Balkan Internet Exchange Ltd
AS60144	3W Infra B.V.
AS62167	Tismi BV
AS8283	Netwerkvereniging Coloclue
AS8298	IPng Networks GmbH
AS8431	TEA Ltd.
AS8888	xTom Pty Ltd
AS9002	RETN Limited
AS9044	BSE Software GmbH

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ASN API & Database

Upstreams

There are 4 upstreams for this ASN.

upstreams	Name
AS174	Cogent Communications, LLC
AS44901	Belcloud LTD
AS57344	Telehouse EAD
AS9002	RETN Limited

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ASN API & Database

Downstreams

There are 2 downstreams for this ASN.

Downstreams	Name
AS51189	Sharcom Ltd.
AS8431	TEA Ltd.

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ASN API & Database

Pingable IPs

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

IP Address	ASN	Details
46.229.198.178	AS20911 Net-Surf.net Ltd.	`3.06ms` from Sofia, BG
178.254.196.200	AS20911 Net-Surf.net Ltd.	`2.11ms` from Sofia, BG
178.254.202.89	AS20911 Net-Surf.net Ltd.	`3.89ms` from Sofia, BG
178.254.250.20	AS20911 Net-Surf.net Ltd.	`2.21ms` from Sofia, BG
78.90.250.166	AS20911 Net-Surf.net Ltd.	`3.03ms` from Sofia, BG
46.229.195.159	AS20911 Net-Surf.net Ltd.	`2.13ms` from Sofia, BG
95.111.124.168	AS20911 Net-Surf.net Ltd.	`3.01ms` from Sofia, BG
178.254.203.153	AS20911 Net-Surf.net Ltd.	`2.19ms` from Sofia, BG
93.152.249.13	AS20911 Net-Surf.net Ltd.	`2.77ms` from Sofia, BG
193.42.34.148	AS20911 Net-Surf.net Ltd.	`5.45ms` from Sofia, BG
46.229.202.80	AS20911 Net-Surf.net Ltd.	`4.71ms` from Sofia, BG
178.254.230.11	AS20911 Net-Surf.net Ltd.	`2.78ms` from Sofia, BG
178.254.200.69	AS20911 Net-Surf.net Ltd.	`2.92ms` from Sofia, BG
46.229.200.39	AS20911 Net-Surf.net Ltd.	`4.84ms` from Sofia, BG
78.90.254.226	AS20911 Net-Surf.net Ltd.	`3.12ms` from Sofia, BG
93.152.250.196	AS20911 Net-Surf.net Ltd.	`3.14ms` from Sofia, BG
178.254.206.178	AS20911 Net-Surf.net Ltd.	`4.79ms` from Sofia, BG
45.90.91.75	AS20911 Net-Surf.net Ltd.	`2.52ms` from Sofia, BG
178.254.245.234	AS20911 Net-Surf.net Ltd.	`2.13ms` from Sofia, BG
195.230.28.47	AS20911 Net-Surf.net Ltd.	`4.80ms` from Sofia, BG
93.123.26.144	AS20911 Net-Surf.net Ltd.	`5.67ms` from Sofia, BG
178.254.216.10	AS20911 Net-Surf.net Ltd.	`4.93ms` from Sofia, BG
178.254.243.239	AS20911 Net-Surf.net Ltd.	`2.00ms` from Sofia, BG
78.90.251.168	AS20911 Net-Surf.net Ltd.	`2.94ms` from Sofia, BG
87.121.70.235	AS20911 Net-Surf.net Ltd.	`2.64ms` 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
20.50.194.127	AS8075 Microsoft Corporation	`0.32ms` from Amsterdam, NL
204.157.115.255	AS46883 Bay Country Communications, Inc.	`3.99ms` from Ashburn, US
173.23.215.175	AS30036 Mediacom Communications Corp	`12.12ms` from Atlanta, US
222.244.188.47	AS4134 CHINANET-BACKBONE	`1.06ms` from Changsha, CN
75.177.77.127	AS11426 Charter Communications Inc	`6.34ms` from Charlotte, US
98.214.152.127	AS7922 Comcast Cable Communications, LLC	`4.21ms` from Chicago, US
222.178.13.223	AS4134 CHINANET-BACKBONE	`1.21ms` from Chongqing, CN
66.61.105.79	AS10796 Charter Communications Inc	`10.41ms` from Cleveland, US
3.121.36.191	AS16509 Amazon.com, Inc.	`0.25ms` from Frankfurt am Main, DE
98.155.22.31	AS20001 Charter Communications Inc	`5.31ms` from Honolulu, US
149.34.185.143	AS201838 Community Fibre Limited	`1.01ms` from London, GB
165.254.94.63	AS2914 NTT America, Inc.	`0.25ms` from Los Angeles, US
95.100.124.47	AS16625 Akamai Technologies, Inc.	`0.58ms` from Madrid, ES
54.83.6.223	AS14618 Amazon.com, Inc.	`0.22ms` from Reston, US
192.142.36.111	AS203144 Host9x Web Solutions Limited	`0.57ms` from Amsterdam, NL
91.84.114.47	AS216071 SERVERS TECH FZCO	`0.53ms` from Amsterdam, NL
110.241.206.239	AS4837 CHINA UNICOM China169 Backbone	`11.23ms` from Beijing, CN
68.154.29.255	AS8075 Microsoft Corporation	`0.27ms` from Boydton, US
66.61.27.47	AS10796 Charter Communications Inc	`8.63ms` from Cleveland, US
20.91.206.79	AS8075 Microsoft Corporation	`0.16ms` from Gaevle, SE
2.100.50.79	AS13285 TalkTalk Communications Limited	`5.83ms` from Manchester, GB
90.249.246.31	AS5378 Vodafone Limited	`4.19ms` from Manchester, GB
159.93.73.31	AS2875 Joint Institute for Nuclear Research	`3.78ms` from Moscow, RU
93.206.153.239	AS3320 Deutsche Telekom AG	`2.18ms` from Nuernberg, DE
114.171.162.159	AS4713 NTT DOCOMO BUSINESS,Inc.	`5.36ms` from Osaka, JP

Traceroute

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

traceroute -a -n -q1 -f4 78.90.248.97

traceroute to 78.90.248.97 (78.90.248.97): 64 hops max, 52 byte packets

4 [] 193.169.198.215 0.412 ms

5 [AS20911] 78.90.248.97 2.664 ms

Measurement taken from

IPinfo ProbeNet in Sofia, BG

On March 20th 2026

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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 AS20911 at robtex.

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