181.51.136.0/23

AS10620 · Telmex Colombia S.A.

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Summary

Country	Colombia
Domain	telmexla.net.co
ASN	AS10620
Parent Range	181.48.0.0/13
Registry	LACNIC
ID	ATI

WHOIS Details

inetnum:     181.48.0.0/13
status:      allocated
aut-num:     AS14080
aut-num:     AS10620
owner:       Telmex Colombia S.A.
ownerid:     CO-ACSA-LACNIC
responsible: Operaciones Core IP
address:     CLARO FIJO COLOMBIA - Cra 68A No. 24B-10, 11111, 
address:     11111 - Bogota - DC
country:     CO
phone:       +57 01 7480000
owner-c:     ATI
tech-c:      ATI
abuse-c:     ATI
inetrev:     181.48.0.0/16
nserver:     NS3.TELMEXLA.NET.CO
nsstat:      20250221 AA
nslastaa:    20250221
nserver:     NS2.TELMEXLA.NET.CO
nsstat:      20250221 AA
nslastaa:    20250221
inetrev:     181.49.0.0/16
nserver:     NS3.TELMEXLA.NET.CO
nsstat:      20250218 AA
nslastaa:    20250218
nserver:     NS2.TELMEXLA.NET.CO
nsstat:      20250218 AA
nslastaa:    20250218
inetrev:     181.50.0.0/16
nserver:     NS3.TELMEXLA.NET.CO
nsstat:      20250221 AA
nslastaa:    20250221
nserver:     NS2.TELMEXLA.NET.CO
nsstat:      20250221 AA
nslastaa:    20250221
inetrev:     181.51.0.0/16
nserver:     NS3.TELMEXLA.NET.CO
nsstat:      20250216 AA
nslastaa:    20250216
nserver:     NS2.TELMEXLA.NET.CO
nsstat:      20250216 AA
nslastaa:    20250216
inetrev:     181.52.0.0/16
nserver:     NS3.TELMEXLA.NET.CO
nsstat:      20250218 AA
nslastaa:    20250218
nserver:     NS2.TELMEXLA.NET.CO
nsstat:      20250218 AA
nslastaa:    20250218
inetrev:     181.53.0.0/16
nserver:     NS3.TELMEXLA.NET.CO
nsstat:      20250220 AA
nslastaa:    20250220
nserver:     NS2.TELMEXLA.NET.CO
nsstat:      20250220 AA
nslastaa:    20250220
inetrev:     181.54.0.0/16
nserver:     NS3.TELMEXLA.NET.CO
nsstat:      20250219 AA
nslastaa:    20250219
nserver:     NS2.TELMEXLA.NET.CO
nsstat:      20250219 AA
nslastaa:    20250219
inetrev:     181.55.0.0/16
nserver:     NS3.TELMEXLA.NET.CO
nsstat:      20250216 AA
nslastaa:    20250216
nserver:     NS2.TELMEXLA.NET.CO
nsstat:      20250216 AA
nslastaa:    20250216
created:     20110502
changed:     20110502

nic-hdl:     ATI
person:      Network Security Team
e-mail:      ciro.mantilla@claro.com.co
address:     Carrera 68a #24b-10, 00, Plaza Claro
address:     111321 - Bogota - DC
country:     CO
phone:       +57  6017500300 [81966]
created:     20020909
changed:     20250218

Overlapping Ranges

BGP prefixes that contain 181.51.136.0/23

Range	ASN	Company	Num of IPs
181.48.0.0/13	AS10620	Telmex Colombia S.A.	524,288
181.48.0.0/13	AS14080	Telmex Colombia S.A.	524,288

Nearby Ranges

BGP prefixes that overlap with 181.51.0.0/16

Range	ASN	Company	Num of IPs
181.48.0.0/13	AS10620	Telmex Colombia S.A.	524,288
181.48.0.0/13	AS14080	Telmex Colombia S.A.	524,288

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
181.51.137.166	AS10620 Telmex Colombia S.A.	`18.24ms` from Bogota, CO
181.51.136.1	AS10620 Telmex Colombia S.A.	`13.87ms` from Bogota, CO

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
72.84.73.7	AS701 Verizon Business	`8.19ms` from Ashburn, US
2.86.206.7	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`0.97ms` from Athens, GR
52.181.23.135	AS8075 Microsoft Corporation	`0.70ms` from Boydton, US
20.36.154.231	AS8075 Microsoft Corporation	`0.34ms` from Boydton, US
213.219.171.103	AS9031 EDPNET Belgium BV	`1.67ms` from Brussels, BE
197.162.97.55	AS24863 Link Egypt (Link.NET)	`10.92ms` from Cairo, EG
50.65.205.151	AS6327 Shaw Communications	`8.37ms` from Calgary, CA
120.226.180.135	AS56047 China Mobile communications corporation	`1.51ms` from Changsha, CN
80.155.148.23	AS3320 Deutsche Telekom AG	`0.60ms` from Frankfurt am Main, DE
70.114.183.199	AS11427 Charter Communications Inc	`11.41ms` from Houston, US
68.46.109.23	AS7922 Comcast Cable Communications, LLC	`3.29ms` from Minneapolis, US
144.125.8.119	AS394089 Google LLC	`0.07ms` from Mumbai, IN
79.219.237.151	AS3320 Deutsche Telekom AG	`3.00ms` from Nuernberg, DE
177.106.114.39	AS53006 ALGAR TELECOM S/A	`7.74ms` from Osasco, BR
54.180.27.215	AS16509 Amazon.com, Inc.	`0.20ms` from Seoul, KR
175.206.117.103	AS4766 Korea Telecom	`2.76ms` from Seoul, KR
54.39.69.39	AS16276 OVH SAS	`0.10ms` from Beauharnois, CA
64.24.150.183	AS7029 Windstream Communications LLC	`8.18ms` from Chicago, US
54.76.245.151	AS16509 Amazon.com, Inc.	`0.20ms` from Dublin, IE
98.29.177.247	AS10796 Charter Communications Inc	`18.79ms` from Flint, US
89.57.99.151	AS207790 SWN Stadtwerke Neumuenster GmbH	`2.20ms` from Hamburg, DE
47.97.145.7	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`3.78ms` from Hangzhou, CN
185.129.211.151	AS9304 HGC Global Communications Limited	`2.98ms` from Hong Kong, HK
51.9.255.151	AS6871 Plusnet	`4.48ms` from London, GB
88.26.16.231	AS3352 TELEFONICA DE ESPANA S.A.U.	`1.02ms` from Madrid, ES

Traceroute

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

traceroute -a -n -q1 -f3 181.51.137.232

traceroute to 181.51.137.232 (181.51.137.232): 64 hops max, 52 byte packets

3 [AS7195] 200.25.30.101 1.04 ms

4 *

5 *

6 [AS10620] 181.51.137.232 45.433 ms

Measurement taken from

IPinfo ProbeNet in Bogota, CO

On November 14th 2025

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