181.51.0.0/23

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 181.51.0.0/23

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

Read more

Pingable IPs

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

IP Address	ASN	Details
181.51.1.3	AS10620 Telmex Colombia S.A.	`6.50ms` from Bogota, CO
181.51.0.1	AS10620 Telmex Colombia S.A.	`2.40ms` 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
186.119.107.103	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`3.90ms` from Bogota, CO
94.23.50.23	AS16276 OVH SAS	`1.62ms` from Gravelines, FR
14.164.115.87	AS45899 VNPT Corp	`5.38ms` from Ho Chi Minh City, VN
98.34.129.39	AS7922 Comcast Cable Communications, LLC	`4.18ms` from Houston, US
95.7.133.135	AS9121 Turk Telekomunikasyon Anonim Sirketi	`3.19ms` from Istanbul, TR
176.135.121.103	AS5410 Bouygues Telecom SA	`9.32ms` from Marseille, FR
79.26.134.151	AS3269 Telecom Italia S.p.A.	`6.09ms` from Milan, IT
138.96.199.247	AS776 INRIA Sophia-Antipolis	`10.02ms` from Milan, IT
217.249.211.103	AS3320 Deutsche Telekom AG	`3.19ms` from Nuernberg, DE
176.241.251.7	AS198335 TRANSATEL SAS	`0.14ms` from Paris, FR
67.161.209.183	AS7922 Comcast Cable Communications, LLC	`5.34ms` from Salt Lake City, US
135.134.165.231	AS4181 TDS TELECOM	`7.47ms` from Seattle, US
210.97.101.247	AS4766 Korea Telecom	`3.64ms` from Seoul, KR
211.218.152.119	AS4766 Korea Telecom	`0.79ms` from Seoul, KR
222.235.60.183	AS9318 SK Broadband Co Ltd	`2.63ms` from Seoul, KR
167.105.86.87	AS8075 Microsoft Corporation	`0.96ms` from Taipei, TW
40.125.225.215	AS58593 Shanghai Blue Cloud Technology Co.,Ltd	`2.67ms` from Tianjin, CN
153.198.188.151	AS4713 NTT DOCOMO BUSINESS,Inc.	`2.77ms` from Tokyo, JP
105.109.106.215	AS36947 Telecom Algeria	`11.41ms` from Tunis, TN
178.183.120.199	AS12912 T-Mobile Polska S.A.	`13.82ms` from Warsaw, PL
120.61.214.55	AS9829 National Internet Backbone	`12.23ms` from Bengaluru, IN
4.152.148.231	AS8075 Microsoft Corporation	`0.20ms` from Boydton, US
139.208.132.151	AS4837 CHINA UNICOM China169 Backbone	`11.12ms` from Changchun, CN
104.108.234.199	AS16625 Akamai Technologies, Inc.	`0.48ms` from Delhi, IN
94.204.198.119	AS15802 Emirates Integrated Telecommunications Company PJSC	`3.34ms` from Dubai, AE

Traceroute

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

traceroute -a -n -q1 -f2 181.51.1.19

traceroute to 181.51.1.19 (181.51.1.19): 64 hops max, 52 byte packets

2 [AS7195] 200.25.51.183 5.199 ms

3 [AS7195] 200.25.30.101 1.444 ms

4 *

5 *

6 [AS10620] 181.51.1.19 16.812 ms

Measurement taken from

IPinfo ProbeNet in Bogota, CO

On November 14th 2025

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