186.251.212.0/23

AS274743 · FASTWEB TELECOMUNICACOES

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Summary

Country	Brazil
Domain	fastwebtelecom.com.br
ASN	AS274743
Registry	LACNIC
ID	DBP9

WHOIS Details

% Copyright (c) Nic.br - Use of this data is governed by the Use and

inetnum:     186.251.212.0/24
aut-num:     AS274743
abuse-c:     DABPE186
owner:       FASTWEB TELECOMUNICACOES
ownerid:     10.552.048/0001-66
responsible: Daniel Brito Pereira
country:     BR
owner-c:     DABPE186
tech-c:      DABPE186
created:     20101129
changed:     20250731

nic-hdl-br:  DABPE186
person:      Daniel Brito Pereira
e-mail:      britocs820@gmail.com
country:     BR
created:     20241206
changed:     20250804

Overlapping Ranges

BGP prefixes that are contained by 186.251.212.0/23

Range	ASN	Company	Num of IPs
186.251.212.0/24	AS274743	FASTWEB TELECOMUNICACOES	256
186.251.213.0/24	AS274743	FASTWEB TELECOMUNICACOES	256

Nearby Ranges

BGP prefixes that overlap with 186.251.0.0/16

Range	ASN	Company	Num of IPs
186.251.0.0/21	AS262820	OnLine Assis Telecomunicações Ltda-EPP	2,048
186.251.80.0/21	AS53223	Master Net Telecom LTDA	2,048
186.251.64.0/21	AS262826	PW INFORMATICA E TECNOLOGIA LTDA	2,048
186.251.48.0/21	AS262824	A C ROCHA INFORMATICA LTDA	2,048
186.251.248.0/21	AS267513	Seanet Telecom Carazinho Eireli	2,048
186.251.176.0/21	AS262832	Infotechnet Informatica e Assistencia Tecnica Ltda	2,048
186.251.160.0/21	AS53227	M.V. Martin & Cia Ltda.	2,048
186.251.96.0/21	AS262828	Acesse Facil Telecomunicacoes Ltda	2,048
186.251.192.0/21	AS262834	REDECONESUL TELECOMUNICACOES LTDA	2,048
186.251.16.0/21	AS53222	Seanet Telecom Ltda	2,048
186.251.240.0/21	AS262839	Yawl Telecomunicação e Rep. de Informática Ltda.	2,048
186.251.168.0/22	AS262907	BRASIL TECPAR \| AMIGO \| AVATO	1,024
186.251.172.0/22	AS263880	WANTEL TECNOLOGIA LTDA. EPP	1,024
186.251.184.0/22	AS263003	VIPNET TELECOMUNICAO E INFORMATICA LTDA.	1,024
186.251.200.0/22	AS28201	Companhia Itabirana Telecomunicações Ltda	1,024
186.251.216.0/22	AS263005	Net Master Telecom Ltda	1,024
186.251.220.0/22	AS263005	Net Master Telecom Ltda	1,024
186.251.224.0/22	AS28649	Desktop Sigmanet Comunicação Multimídia SA	1,024
186.251.228.0/22	AS52912	VIEIRA E RETECHESKI LTDA	1,024
186.251.232.0/22	AS53229	Industrias Arteb S.A	1,024
186.251.8.0/22	AS262988	Pombonet Telecomunicações e Informática	1,024
186.251.104.0/22	AS262821	PHS INTERNET E SUPRIMENTOS LTDA - ME	1,024
186.251.108.0/22	AS28343	UNIFIQUE TELECOMUNICACOES S/A	1,024
186.251.112.0/22	AS28220	Alares Cabo Servicos de Telecomunicacoes S.A.	1,024
186.251.116.0/22	AS28220	Alares Cabo Servicos de Telecomunicacoes S.A.	1,024
186.251.12.0/22	AS263561	RODRIGO BORGHI DA SILVA & CIA LTDA	1,024
186.251.124.0/22	AS52899	FLIX TELECOM	1,024
186.251.144.0/22	AS28130	CERTTO TELECOMUNICAÇÕES LTDA EPP.	1,024
186.251.148.0/22	AS28130	CERTTO TELECOMUNICAÇÕES LTDA EPP.	1,024
186.251.152.0/22	AS262836	ABC Net Telecomunicações e Tecnologia Ltda	1,024
186.251.156.0/22	AS52900	BRASIL TECPAR \| AMIGO \| AVATO	1,024
186.251.28.0/22	AS262380	Rontel LTDA	1,024
186.251.32.0/22	AS270752	Focustelecomm Tecnologia em Telecomunicacoes Ltda	1,024
186.251.40.0/22	AS262825	JL INFORMATICA LTDA	1,024
186.251.44.0/22	AS262825	JL INFORMATICA LTDA	1,024
186.251.56.0/22	AS262903	Tubaron Telecom	1,024
186.251.72.0/22	AS262993	SELECT TELECOM E REDES LTDA	1,024
186.251.76.0/22	AS262993	CNX TELECOMUNICACOES LTDA	1,024
186.251.92.0/22	AS52624	WEB TELECOMUNICAÇÕES LTDA	1,024
186.251.62.0/23	AS52622	Tribunal Regional do Trabalho da 4 Regiao	512
186.251.214.0/23	AS22128	Defferrari Solucoes em Internet Ltda	512
186.251.188.0/23	AS263568	Guardian Brasil Vidros Planos Ltda.	512
186.251.206.0/23	AS266143	UP LINK INTERNET BANDA LARGA	512
186.251.204.0/23	AS263580	Everest Soluções em Telecomunicações Ltda	512
186.251.95.0/24	AS52624	Net Turbo Telecom	256
186.251.78.0/24	AS262993	Netcom serviços de telecomunicações	256
186.251.38.0/24	AS52910	A. Angeloni & Cia Ltda	256
186.251.39.0/24	AS52914	Associacao Educacional Nove de Julho	256
186.251.92.0/24	AS52624	Net Turbo Telecom	256
186.251.93.0/24	AS52624	Net Turbo Telecom	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

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

IP Address	ASN	Details
186.251.212.255	AS274743 FASTWEB TELECOMUNICACOES	`0.74ms` from Osasco, BR

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
86.85.97.39	AS1136 KPN B.V.	`2.53ms` from Amsterdam, NL
174.169.253.71	AS7922 Comcast Cable Communications, LLC	`11.21ms` from Boston, US
142.204.242.39	AS393238 ImOn Communications, LLC	`9.62ms` from Chicago, US
65.189.197.231	AS10796 Charter Communications Inc	`11.54ms` from Columbus, US
177.193.79.103	AS28573 Claro NXT Telecomunicacoes Ltda	`8.91ms` from Curitiba, BR
47.188.219.23	AS5650 Frontier Communications of America, Inc.	`1.57ms` from Dallas, US
129.9.177.7	AS36067 DaimlerChrysler Corporation	`1.95ms` from Detroit, US
105.213.74.215	AS16637 MTN SA	`3.34ms` from Johannesburg, ZA
76.128.35.23	AS7922 Comcast Cable Communications, LLC	`3.76ms` from Miami, US
212.131.160.39	AS3269 Telecom Italia S.p.A.	`7.60ms` from Milan, IT
27.198.136.231	AS4837 CHINA UNICOM China169 Backbone	`7.35ms` from Qingdao, CN
44.196.52.135	AS14618 Amazon.com, Inc.	`0.20ms` from Reston, US
104.165.203.135	AS18779 EGIHosting	`0.14ms` from Santa Clara, US
183.125.247.247	AS4766 Korea Telecom	`6.42ms` from Seoul, KR
52.174.146.135	AS8075 Microsoft Corporation	`0.19ms` from Amsterdam, NL
47.39.238.23	AS20115 Charter Communications LLC	`8.76ms` from Atlanta, US
217.13.110.7	AS208126 ViNetwork Kft.	`0.40ms` from Budapest, HU
81.182.93.151	AS5483 Magyar Telekom Plc.	`2.49ms` from Budapest, HU
71.194.115.247	AS7922 Comcast Cable Communications, LLC	`6.47ms` from Chicago, US
132.164.217.39	AS8075 Microsoft Corporation	`0.22ms` from Dublin, IE
121.202.213.71	AS17924 SmarTone Mobile Communications Ltd	`11.87ms` from Hong Kong, HK
42.177.51.7	AS4837 CHINA UNICOM China169 Backbone	`3.90ms` from Liaoyang, CN
86.23.148.215	AS5089 Virgin Media Limited	`12.66ms` from London, GB
75.223.118.71	AS6167 Verizon Business	`11.68ms` from Los Angeles, US
112.211.37.247	AS9299 Philippine Long Distance Telephone Company	`1.22ms` from Manila, PH

Traceroute

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

traceroute -a -n -q1 -f5 -m9 186.251.213.186

traceroute to 186.251.213.186 (186.251.213.186): 9 hops max, 52 byte packets

5 [AS28283] 189.14.239.9 17.984 ms

6 [] 187.16.208.93 21.923 ms

7 *

8 *

9 *

Measurement taken from

IPinfo ProbeNet in Novo Hamburgo, BR

On September 11th 2025

What are IP address ranges?

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