Claro · Dominican Republic
Claro is a mobile network operator in the Dominican Republic, part of America Movil and registered as Compania Dominicana de Telefonos, S.A. The registry records one confirmed ASN, AS6400, whose role is not documented, so nothing marks it as specifically mobile. Claro's mobile code is MCC 370 with MNC 02.
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 Claro
One ASN is recorded for Claro, AS6400, registered to Compania Dominicana de Telefonos, S.A. It was announced at the last probe, though the probe counted no IPv4 and no IPv6 prefixes under it, so the registry holds no prefix totals for the operator. The registry also holds no PeeringDB name or network type for AS6400. No source separates Claro's mobile network from its fixed network at the ASN level, which is why the role stays undocumented.
An address whose origin ASN is AS6400 is routed by Compania Dominicana de Telefonos, the company behind Claro. One ASN covers the whole operator and no source assigns it a mobile role, so an address under it could be mobile, fixed or enterprise. The origin ASN does not settle the question on its own, and with no prefix counts recorded the registry cannot narrow the address space either.
Research note. Legal name Compañía Dominicana de Teléfonos, S.A. (Wikipedia; PeeringDB aka field). AS6400 had no asn.txt candidate; found via PeeringDB (website https://www.claro.com.do) and RIPEstat (holder 'Compania Dominicana de Telefonos S. A.', announced). Single ASN for the whole operator; no source separates mobile from fixed, so role left unknown. Claro 5G page states 5G devices also use 3G/4G LTE/4.5G networks; Wikipedia MNC table lists LTE 1700/1900/2600 and 5G 3500 for 370-02.
Checking whether an IP belongs to Claro
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 AS6400' | grep ^routeQuestions
What is Claro Dominican Republic's ASN?
The registry records one confirmed ASN for Claro, AS6400, held by Compania Dominicana de Telefonos, S.A. It was announced at the last probe. No source in the registry documents whether that ASN carries the mobile network, the fixed network, or both.
What is the MCC/MNC of Claro Dominican Republic?
Claro uses MCC 370 with MNC 02. MCC 370 is the Dominican Republic's mobile country code and MNC 02 identifies Claro's network within it. The registry records this one pair for the operator and no others.
Is an IP from AS6400 a mobile IP?
Not necessarily. AS6400 is the only ASN recorded for the operator and its role is not documented, so an address announced by it could be mobile, fixed or enterprise. The origin ASN alone does not tell you which one it is.
Sources
- https://www.peeringdb.com/api/net?asn=6400
- https://stat.ripe.net/data/as-overview/data.json?resource=AS6400
- https://en.wikipedia.org/wiki/Claro_(Dominican_Republic)
- https://en.wikipedia.org/wiki/Mobile_Network_Codes_in_ITU_region_3xx_(North_America)
- https://www.claro.com.do/
- https://www.claro.com.do/personas/servicios/cobertura/red-5g/
- RIPEstat Data API (holder, announced prefixes)
- PeeringDB API (network records)