191.37.76.0/24

AS263356 · CNT Fiber

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Summary

Country	Brazil
Domain	cntfiber.net.br
ASN	AS263356
Parent Range	191.37.72.0/21
Registry	LACNIC
ID	ASA90

WHOIS Details

inetnum:     191.37.72.0/21
aut-num:     AS263356
abuse-c:     CNILT14
owner:       CNT Fiber
ownerid:     08.892.029/0001-37
responsible: Amarildo Souza Arruda
owner-c:     CNILT14
tech-c:      CNILT14
inetrev:     191.37.72.0/21
nserver:     ns1.udns.com.br
nsstat:      20211218 AA
nslastaa:    20211218
nserver:     ns2.udns.com.br
nsstat:      20211218 AA
nslastaa:    20211218
nserver:     ns3.udns.com.br
nsstat:      20211218 AA
nslastaa:    20211218
nserver:     ns4.udns.com.br
nsstat:      20211218 AA
nslastaa:    20211218
nserver:     ns5.udns.com.br
nsstat:      20211218 AA
nslastaa:    20211218
created:     20140318
changed:     20140318

nic-hdl-br:  CNILT14
person:      Conecta Net Informatica Ltda
created:     20111006
changed:     20190311

Overlapping Ranges

BGP prefixes that contain 191.37.76.0/24

Range	ASN	Company	Num of IPs
191.37.72.0/21	AS263356	CNT Fiber	2,048

Nearby Ranges

BGP prefixes that overlap with 191.37.0.0/16

Range	ASN	Company	Num of IPs
191.37.32.0/19	AS263347	CEDNET PROVEDOR INTERNET	8,192
191.37.96.0/19	AS263357	Hot Wave Comercio e Servico de Telecomunicacoes Lt	8,192
191.37.176.0/21	AS263369	Almeida & Moura Ltda	2,048
191.37.200.0/21	AS263371	Intervia Solucoes Ltda	2,048
191.37.208.0/21	AS263372	RODRIGUES & SARMENTO LTDA	2,048
191.37.224.0/21	AS263374	YZO TELECOM TECNOLOGIA EIRELI - ME	2,048
191.37.232.0/21	AS263375	INFO CENTER INFORMÁTICA LTDA	2,048
191.37.184.0/21	AS61904	POLLYNET TELECOM EIRELI	2,048
191.37.16.0/21	AS263349	RapeedoISP LTDA	2,048
191.37.88.0/21	AS61588	DIGITAL PROVEDOR DE ACESSO A INTERNET LTDA	2,048
191.37.216.0/21	AS273309	UNI TELECOM LTDA	2,048
191.37.144.0/21	AS268323	Alares Cabo Servicos de Telecomunicacoes S.A.	2,048
191.37.72.0/21	AS263356	CNT Fiber	2,048
191.37.128.0/21	AS263359	CyberTech Informática Ltda.	2,048
191.37.152.0/21	AS263362	REDE SPEEDNET TELECOM LTDA	2,048
191.37.240.0/21	AS262481	VERO S.A	2,048
191.37.160.0/21	AS263363	RADLINK TELECOMUNICACOES LTDA	2,048
191.37.136.0/22	AS263360	BR MASTER PROVEDOR DE INTERNET LTDA	1,024
191.37.248.0/22	AS262481	VERO S.A	1,024
191.37.8.0/22	AS263348	DESEMPENHO PROVEDOR DE INTERNET	1,024
191.37.12.0/22	AS263350	rocha e portes ltda	1,024
191.37.28.0/22	AS263352	WRNET LTDA	1,024
191.37.64.0/22	AS263353	YARA DOS SANTOS BARREIRO - ME	1,024
191.37.68.0/22	AS263355	GTR NET COMUNICACOES EIRELI	1,024
191.37.196.0/22	AS263404	TELECOM FOZ	1,024
191.37.140.0/22	AS266387	World Fast Telecomunicacoes ME	1,024
191.37.84.0/22	AS270973	ZERBINATTI & SANTOS MULTIMIDIA LTDA	1,024
191.37.168.0/22	AS271023	TERA SOLUCOES	1,024
191.37.172.0/22	AS28343	Unifique Telecomunicações SA	1,024
191.37.4.0/23	AS263346	Fonte Informatica ltda	512
191.37.2.0/23	AS263980	G3 Telecom EIRELI	512
191.37.0.0/23	AS263346	Fonte Informatica ltda	512
191.37.82.0/24	AS270972	4L FIBRA TELECOM EIRELI	256
191.37.83.0/24	AS270972	Mega Power Provedor De Internet Ltda - M	256
191.37.255.0/24	AS263257	Unimed Regional Maringá	256
191.37.230.0/24	AS263374	IDEZ TELECOM	256
191.37.254.0/24	AS263273	INST. FED. DE EDUCACAO CIENCIA E TECNO FLUMINENSE	256
191.37.253.0/24	AS263417	UNIVERSIDADE CATOLICA DOM BOSCO	256
191.37.7.0/24	AS263980	G3 Telecom EIRELI	256
191.37.6.0/24	AS263980	G3 Telecom EIRELI	256
191.37.252.0/24	AS270050	OPTIMIZA SEGURIDAD SpA	256
191.37.80.0/24	AS270972	Ponto a Ponto Telecomunicaçoes	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Pingable IPs

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

IP Address	ASN	Details
191.37.76.130	AS263356 CNT Fiber	`8.55ms` from Sao Paulo, 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
139.171.245.168	AS7029 Windstream Communications LLC	`0.60ms` from Ashburn, US
73.79.228.88	AS7922 Comcast Cable Communications, LLC	`13.32ms` from Ashburn, US
121.75.94.168	AS9500 One New Zealand Group Limited	`1.70ms` from Auckland, NZ
142.161.182.8	AS7122 Bell Canada	`19.58ms` from Chicago, US
199.125.56.248	AS396011 NiSource Corporate Services Company	`2.07ms` from Columbus, US
87.153.225.168	AS3320 Deutsche Telekom AG	`7.52ms` from Frankfurt am Main, DE
56.68.7.232	AS16509 Amazon.com, Inc.	`0.94ms` from Kuala Lumpur, MY
31.185.57.120	AS6871 Plusnet	`7.09ms` from London, GB
50.244.199.40	AS7922 Comcast Cable Communications, LLC	`6.22ms` from Minneapolis, US
37.41.228.232	AS28885 OmanTel NAP	`2.70ms` from Muscat, OM
149.78.178.8	AS263903 INFORBARRA TELECOM	`0.39ms` from Osasco, BR
172.81.246.24	AS45090 Shenzhen Tencent Computer Systems Company Limited	`1.60ms` from Shanghai, CN
54.66.185.168	AS16509 Amazon.com, Inc.	`0.14ms` from Sydney, AU
42.229.241.56	AS4837 CHINA UNICOM China169 Backbone	`6.66ms` from Zhengzhou, CN
96.8.99.200	AS53828 NETWORK INNOVATIONS, LLC	`13.02ms` from Atlanta, US
40.129.194.120	AS7029 Windstream Communications LLC	`0.35ms` from Atlanta, US
71.28.137.152	AS7029 Windstream Communications LLC	`0.30ms` from Atlanta, US
125.238.50.200	AS4771 Spark New Zealand Trading Ltd.	`6.21ms` from Auckland, NZ
156.214.86.152	AS8452 TE-AS	`6.25ms` from Cairo, EG
87.177.253.136	AS3320 Deutsche Telekom AG	`3.02ms` from Frankfurt am Main, DE
136.35.107.40	AS16591 Google Fiber Inc.	`0.61ms` from Kansas City, US
84.220.189.120	AS8612 Tiscali Italia S.P.A.	`17.08ms` from Milan, IT
194.32.255.232	AS209930 DataSpace Partners LLC	`1.17ms` from Moscow, RU
31.10.13.184	AS35140 JSC RACE TELECOM	`1.97ms` from Moscow, RU
149.61.233.40	AS23171 Manhattan College	`0.85ms` from New York City, US

Traceroute

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

traceroute -a -n -q1 -f3 191.37.76.148

traceroute to 191.37.76.148 (191.37.76.148): 64 hops max, 52 byte packets

3 [AS23106] 200.150.1.169 41.191 ms

4 [AS23106] 186.248.107.150 26.311 ms

5 *

6 *

7 [AS263356] 191.37.76.148 28.848 ms

Measurement taken from

IPinfo ProbeNet in Muriae, BR

On January 30th 2026

What are IP address ranges?

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