187.18.52.0/24

AS21911 · DIGITALSERVICES.UOL S.A.

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Summary

Country	Brazil
Domain	dualtec.com.br
ASN	AS21911
Registry	LACNIC
ID	CAU5

WHOIS Details

inetnum:     187.18.48.0/20
aut-num:     AS21911
abuse-c:     EDUSE
owner:       DIGITALSERVICES.UOL S.A.
ownerid:     01.588.770/0001-60
responsible: Gerencia de Redes GRUPO UOL
owner-c:     CAU12
tech-c:      EDUTE6
inetrev:     187.18.48.0/20
nserver:     easydns1.dualtec.com.br [lame - not published]
nsstat:      20250131 UH
nslastaa:    20220823
nserver:     easydns2.dualtec.com.br [lame - not published]
nsstat:      20250131 UH
nslastaa:    20191212
created:     20081219
changed:     20250129

nic-hdl-br:  CAU12
person:      Contato Administrativo - UOL
created:     20031202
changed:     20200602

nic-hdl-br:  EDUSE
person:      Edge UOL Security
created:     20250123
changed:     20250127

nic-hdl-br:  EDUTE6
person:      Edge UOL Technical
created:     20250123
changed:     20250127

Nearby Ranges

BGP prefixes that overlap with 187.18.0.0/16

Range	ASN	Company	Num of IPs
187.18.128.0/17	AS28220	Videomar Rede Nordeste S/A	32,768
187.18.128.0/17	AS28270	Videomar Rede Nordeste S/A	32,768
187.18.64.0/18	AS22689	SERCOMTEL S/A TELECOMUNICACOES	16,384
187.18.16.0/20	AS28121	BB TECNOLOGIA E SERVICOS S/A	4,096
187.18.0.0/20	AS28269	COMPUTADORES E SISTEMAS LTDA	4,096
187.18.32.0/20	AS7048	MHNET TELECOM	4,096

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

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

IP Address	ASN	Details
187.18.52.125	AS21911 DIGITALSERVICES.UOL S.A.	`1.01ms` 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
3.170.76.152	AS16509 Amazon.com, Inc.	`0.22ms` from Atlanta, US
213.49.16.8	AS5432 Proximus NV	`1.24ms` from Brussels, BE
222.162.14.8	AS4837 CHINA UNICOM China169 Backbone	`6.69ms` from Changchun, CN
176.36.168.56	AS39608 Lanet Network Ltd	`0.51ms` from Kyiv, UA
184.177.174.216	AS22773 Cox Communications Inc.	`3.63ms` from Los Angeles, US
200.146.198.232	AS16735 ALGAR TELECOM S/A	`5.86ms` from Uberlandia, BR
77.229.230.120	AS12430 VODAFONE ESPANA S.A.U.	`4.07ms` from Barcelona, ES
176.252.28.120	AS5607 Sky UK Limited	`4.59ms` from Erith, GB
185.232.168.56	AS56630 Melbikomas UAB	`0.11ms` from Frankfurt am Main, DE
170.185.162.24	AS11686 Zayo Bandwidth	`13.62ms` from Indianapolis, US
86.139.204.72	AS2856 British Telecommunications PLC	`5.33ms` from London, GB
175.192.26.8	AS4766 Korea Telecom	`1.33ms` from Seoul, KR
174.102.164.136	AS10796 Charter Communications Inc	`6.44ms` from Chicago, US
23.64.164.120	AS16625 Akamai Technologies, Inc.	`0.48ms` from Dallas, US
82.197.0.72	AS34263 MPY Telecom Oy	`4.58ms` from Helsinki, FI
79.157.129.136	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.59ms` from Madrid, ES
201.232.107.216	AS13489 UNE EPM TELECOMUNICACIONES S.A.	`2.00ms` from Medellin, CO
5.35.9.232	AS50340 JSC Selectel	`0.59ms` from Moscow, RU
136.239.69.232	AS11272 C Spire Fiber	`9.97ms` from New Orleans, US
126.207.223.120	AS17676 SoftBank Corp.	`3.66ms` from Osaka, JP
23.56.103.24	AS16625 Akamai Technologies, Inc.	`0.30ms` from Seattle, US
203.250.248.40	AS1237 KISTI	`6.29ms` from Seoul, KR
119.213.56.168	AS4766 Korea Telecom	`4.22ms` from Seoul, KR
124.146.153.168	AS2514 NTT PC Communications, Inc.	`0.62ms` from Tokyo, JP
105.108.182.216	AS36947 Telecom Algeria	`14.66ms` from Algiers, DZ

Traceroute

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

traceroute -a -n -q1 187.18.52.61

traceroute to 187.18.52.61 (187.18.52.61): 64 hops max, 52 byte packets

1 [AS31898] 140.91.208.76 0.208 ms

2 [AS31898] 140.204.14.116 0.857 ms

3 *

4 [AS52320] 200.16.69.121 1.537 ms

5 [AS52320] 45.238.98.73 0.82 ms

6 [AS13878] 200.143.0.6 1.019 ms

7 [AS21911] 187.18.52.61 1.255 ms

Measurement taken from

IPinfo ProbeNet in Sao Paulo, BR

On December 20th 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.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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