170.81.23.0/24

AS266387 · World Fast Telecomunicacoes ME

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Summary

Country	Brazil
Domain	worldfast.net.br
ASN	AS266387
Parent Range	170.81.20.0/22
Registry	LACNIC
ID	ERS10

WHOIS Details

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

inetnum:     170.81.20.0/22
aut-num:     AS266387
abuse-c:     EDRSI11
owner:       World Fast Telecomunicacoes ME
ownerid:     23.160.901/0001-46
responsible: EDVALDO ROCHA DA SILVA
owner-c:     EDRSI11
tech-c:      EDRSI11
inetrev:     170.81.20.0/22
nserver:     pns21.cloudns.net
nsstat:      20250908 AA
nslastaa:    20250908
nserver:     pns22.cloudns.net
nsstat:      20250908 AA
nslastaa:    20250908
nserver:     pns23.cloudns.net
nsstat:      20250908 AA
nslastaa:    20250908
nserver:     pns24.cloudns.net
nsstat:      20250908 AA
nslastaa:    20250908
dsinetrev:   170.81.20.0/24
dsrecord:    19471 ECDSA-SHA-256 34650FC6DCC38146B62DB8492B3E5168087D258092EAC249D59B90A647BCA449
dsstatus:    20250908 OK
dslastok:    20250908
dsinetrev:   170.81.21.0/24
dsrecord:    5554 ECDSA-SHA-256 FFA3A8EAEDC9C719987623156FD7C7543B5F1F84A970DD6211FB25236A90CF80
dsstatus:    20250908 OK
dslastok:    20250908
dsinetrev:   170.81.22.0/24
dsrecord:    3291 ECDSA-SHA-256 4F4B5AE2A8309DF5CCF586CFE27016D7DB148DC34AE22177F2084B42F7F3E480
dsstatus:    20250908 OK
dslastok:    20250908
dsinetrev:   170.81.23.0/24
dsrecord:    43843 ECDSA-SHA-256 272E6BC7E5128FA8F4F29539B465ED3090FE38792F072D9B2B2023847D94C545
dsstatus:    20250908 OK
dslastok:    20250908
created:     20161129
changed:     20161129

nic-hdl-br:  EDRSI11
person:      EDVALDO ROCHA DA SILVA
created:     20070827
changed:     20250907

Overlapping Ranges

BGP prefixes that contain 170.81.23.0/24

Range	ASN	Company	Num of IPs
170.81.20.0/22	AS266387	World Fast Telecomunicacoes ME	1,024

Hosted domains

There are 4 domain names hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
170.81.23.240	techfrei.com.br	4

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

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

IP Address	ASN	Details
170.81.23.2	AS266387 World Fast Telecomunicacoes ME	`1.27ms` 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
51.124.181.232	AS8075 Microsoft Corporation	`0.25ms` from Amsterdam, NL
69.237.43.104	AS7018 AT&T Enterprises, LLC	`5.50ms` from Atlanta, US
162.229.55.232	AS7018 AT&T Enterprises, LLC	`7.09ms` from Atlanta, US
151.233.240.104	AS58224 Iran Telecommunication Company PJS	`16.18ms` from Az Za`ayin, QA
1.90.60.232	AS17429 BEIJING GEHUA CATV NETWORK CO.LTD	`10.91ms` from Beijing, CN
8.156.76.248	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.35ms` from Chengdu, CN
154.218.50.136	AS9294 GNET INC.	`0.78ms` from Hong Kong, HK
72.52.131.88	AS32244 Liquid Web, L.L.C	`0.19ms` from Lansing, US
13.40.61.184	AS16509 Amazon.com, Inc.	`0.19ms` from London, GB
218.97.160.8	AS9939 DYXNET of Shenzhen Communication Co., Ltd.	`6.96ms` from Nanjing, CN
60.32.120.216	AS4713 NTT Communications Corporation	`9.78ms` from Osaka, JP
129.210.29.200	AS26488 Santa Clara University	`2.54ms` from San Jose, US
175.242.189.152	AS4766 Korea Telecom	`7.73ms` from Seoul, KR
120.231.219.248	AS56040 China Mobile communications corporation	`9.46ms` from Shenzhen, CN
52.148.64.104	AS8075 Microsoft Corporation	`0.66ms` from Singapore, SG
38.2.100.168	AS10971 Cass Cable TV, Inc.	`4.50ms` from St. Louis, US
39.110.41.168	AS2527 Sony Network Communications Inc.	`2.66ms` from Tokyo, JP
174.103.254.232	AS10796 Charter Communications Inc	`9.48ms` from Columbus, US
84.128.24.152	AS3320 Deutsche Telekom AG	`9.16ms` from Frankfurt am Main, DE
129.173.9.152	AS8111 Dalhousie University	`0.36ms` from Halifax, CA
115.205.24.184	AS4134 CHINANET-BACKBONE	`6.91ms` from Hangzhou, CN
1.65.171.216	AS4760 HKT Limited	`1.09ms` from Hong Kong, HK
88.238.150.72	AS47331 TTNet A.S.	`8.83ms` from Istanbul, TR
108.159.162.24	AS16509 Amazon.com, Inc.	`0.28ms` from Jakarta, ID
212.58.235.8	AS2818 BBC	`0.24ms` from London, GB

Traceroute

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

traceroute -a -n -q1 170.81.23.237

traceroute to 170.81.23.237 (170.81.23.237): 64 hops max, 52 byte packets

1 [AS15169] 108.170.228.31 135.91 ms

2 [AS263626] 179.125.24.230 122.764 ms

3 [AS263626] 179.125.25.250 124.507 ms

4 *

5 [AS266387] 170.81.23.237 123.708 ms

Measurement taken from

IPinfo ProbeNet in Montreal, CA

On September 11th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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