Movistar · Colombia
Movistar is the consumer brand of Colombia Telecomunicaciones S.A. ESP BIC in Colombia, with Millicom as its parent group. The registry records two announced ASNs, AS3816 and AS27921, both registered to that company, and documents no mobile or fixed role for either. Recorded MCC/MNC codes are 732-123 and 732-001.
Autonomous systems
Holder names and prefix counts come from the RIPE NCC's RIPEstat Data API, fetched on 2026-09-06. Role and confidence come from the evidence linked in each row; "confirmed" means a PeeringDB or RIPEstat record, or the operator's own site, names the operator.
Mobile network codes
The MCC identifies the country and the MNC identifies the operator inside it. Together they appear in the IMSI of every SIM on the network and in device diagnostics; they are how a handset knows which network it is on.
About Movistar
Two ASNs are on file for Movistar Colombia, both held by Colombia Telecomunicaciones S.A. ESP BIC. AS3816 carries almost all of the recorded address space and announced 1,266 IPv4 prefixes against 15 IPv6 prefixes at the last probe. AS27921 is far smaller, with two IPv4 prefixes and no IPv6 at the last probe. PeeringDB has an entry for AS3816 that gives movistar.com.co as the operator website, and no record for AS27921. The registry holds no PeeringDB network name or type value for either number.
An address whose origin ASN is AS3816 or AS27921 is routed by Colombia Telecomunicaciones, the company behind the Movistar brand in Colombia. Because the registry documents no role for either ASN, such an address could be mobile, fixed broadband or enterprise, and the ASN on its own does not settle which. Colombia Telecomunicaciones runs fixed and mobile services as one integrated operator, and public sources do not separate the two at the ASN level, so a narrower answer has to come from evidence outside the routing data.
Research note. Legal name Colombia Telecomunicaciones S.A. E.S.P. BIC (Coltel). Ownership changed in 2026: Millicom bought Telefónica's controlling stake (Feb 2026) and the remaining 32.5% from the Colombian government (27 Apr 2026); formerly a Telefónica company. PeeringDB AS3816 lists website movistar.com.co; PeeringDB has no record for AS27921. Coltel is an integrated fixed+mobile operator, so the ASN role (mobile vs fixed) could not be separated from public sources. movistar.co 301-redirects to www.movistar.com.co. Candidate 732-102 dropped: Wikipedia lists it as Bellsouth Colombia, network acquired by Movistar, MNC withdrawn. Movistar activated 5G on 2024-02-23 (Forbes); LTE bands listed for 732-123 on Wikipedia.
Checking whether an IP belongs to Movistar
Look up the origin ASN of the address and compare it with the table above. RIPEstat answers for any address, and the RADB whois mirror lists the routes registered under an ASN.
curl -s "https://stat.ripe.net/data/prefix-overview/data.json?resource=203.0.113.9" | jq '.data.asns'whois -h whois.radb.net -- '-i origin AS3816' | grep ^routeQuestions
What is Movistar Colombia's ASN?
The registry records two ASNs for the operator, AS3816 and AS27921, both registered to Colombia Telecomunicaciones S.A. ESP BIC and both announced at the last probe. Neither carries a documented mobile or fixed role, so the registry does not say which one, if either, is the mobile network.
What is the MCC/MNC of Movistar Colombia?
The registry records two pairs for the operator, 732-123 and 732-001, both under MCC 732, the country code for Colombia. Wikipedia's network-code table is the source for both. No further network codes are confirmed here, so any other pair attributed to Movistar Colombia is outside what this registry documents.
Is an IP from AS3816 a mobile IP?
The registry cannot confirm that. AS3816 belongs to Colombia Telecomunicaciones, which runs mobile and fixed services together, and no role is documented for the ASN. An address originating there could be mobile, fixed broadband or enterprise, and the ASN alone does not decide it.
Sources
- https://es.wikipedia.org/wiki/Movistar_(Colombia)
- https://www.theglobeandmail.com/investing/markets/stocks/TIGO/pressreleases/1603523/millicom-completes-full-acquisition-of-coltel-to-boost-scale-and-5g-investment-in-colombia/
- https://www.peeringdb.com/api/net?asn=3816&depth=0
- https://stat.ripe.net/data/as-overview/data.json?resource=AS3816
- https://stat.ripe.net/data/as-overview/data.json?resource=AS27921
- https://en.wikipedia.org/wiki/Mobile_Network_Codes_in_ITU_region_7xx_(South_America)
- https://www.movistar.com.co/
- https://forbes.co/2024/02/23/tecnologia/llego-5g-a-colombia-claro-tigo-y-movistar-los-primeros-operadores-moviles-en-encender-sus-redes
- RIPEstat Data API (holder, announced prefixes)
- PeeringDB API (network records)