181.51.24.0/21

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 181.51.24.0/21

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

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

IP Address	ASN	Details
181.51.26.70	AS10620 Telmex Colombia S.A.	`11.78ms` from Bogota, CO
181.51.24.1	AS10620 Telmex Colombia S.A.	`3.95ms` from Bogota, CO
181.51.25.127	AS10620 Telmex Colombia S.A.	`10.06ms` from Bogota, CO
181.51.28.40	AS10620 Telmex Colombia S.A.	`10.35ms` from Bogota, CO
181.51.31.135	AS10620 Telmex Colombia S.A.	`12.40ms` from Bogota, CO
181.51.29.70	AS10620 Telmex Colombia S.A.	`9.58ms` from Bogota, CO
181.51.27.171	AS10620 Telmex Colombia S.A.	`7.80ms` 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
116.131.165.85	AS4837 CHINA UNICOM China169 Backbone	`9.48ms` from Beijing, CN
71.233.126.117	AS7922 Comcast Cable Communications, LLC	`9.72ms` from Boston, US
45.191.205.21	AS269684 LANFIBRA TELECOMUNICACOES - EIRELI	`7.27ms` from Brasilia, BR
71.28.67.101	AS7029 Windstream Communications LLC	`11.38ms` from Chicago, US
172.117.217.181	AS20001 Charter Communications Inc	`4.34ms` from Los Angeles, US
117.228.148.229	AS9829 National Internet Backbone	`3.06ms` from Mumbai, IN
125.204.90.213	AS4713 NTT DOCOMO BUSINESS,Inc.	`12.42ms` from Osaka, JP
90.45.218.229	AS3215 Orange S.A.	`4.16ms` from Paris, FR
71.93.28.245	AS20115 Charter Communications LLC	`13.94ms` from San Jose, US
151.251.138.117	AS29580 A1 Bulgaria EAD	`1.24ms` from Sofia, BG
212.220.183.37	AS12389 PJSC Rostelecom	`0.99ms` from Yekaterinburg, RU
99.174.222.117	AS7018 AT&T Enterprises, LLC	`19.73ms` from Atlanta, US
149.143.186.149	AS33659 Comcast Cable Communications, LLC	`0.25ms` from Boston, US
162.242.179.69	AS19994 Rackspace Hosting	`1.19ms` from Chicago, US
204.126.253.229	AS26830 OPERS	`0.58ms` from Columbus, US
34.132.111.85	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
201.199.244.53	AS11830 Instituto Costarricense de Electricidad y Telecom.	`1.19ms` from Curridabat, CR
51.182.113.101	AS5607 Sky UK Limited	`1.72ms` from Dublin, IE
157.156.70.149	AS17816 China Unicom IP network China169 Guangdong province	`6.21ms` from Guangzhou, CN
131.207.52.37	AS375 Tietoevry Oyj	`6.14ms` from Helsinki, FI
113.225.209.85	AS4837 CHINA UNICOM China169 Backbone	`8.19ms` from Liaoyang, CN
86.185.155.181	AS2856 British Telecommunications PLC	`5.32ms` from London, GB
80.74.225.53	AS39477 Mundio Mobile	`0.53ms` from London, GB
85.39.177.21	AS3269 Telecom Italia S.p.A.	`4.93ms` from Milan, IT
34.75.54.229	AS396982 Google LLC	`0.15ms` from Moncks Corner, US

Traceroute

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

traceroute -a -n -q1 181.51.29.70

traceroute to 181.51.29.70 (181.51.29.70): 64 hops max, 52 byte packets

1 [AS7195] 200.25.27.253 0.279 ms

2 *

3 [AS7195] 200.25.51.2 0.871 ms

4 [AS7195] 200.25.51.187 2.866 ms

5 [AS7195] 200.25.30.101 1.455 ms

6 *

7 *

8 [AS10620] 181.51.29.70 23.722 ms

Measurement taken from

IPinfo ProbeNet in Bogota, CO

On October 30th 2025

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