139.47.21.104
139.47.21.104 is an IPv4 address operated by AS15704 - XTRA TELECOM S.A., ES (AS15704), with approximate network location Valencia, Spain. Its reverse DNS name is static.masmovil.com. As of November 13, 2026, IPDebrief rates it Low Risk (0/100); no anonymizing service was detected.
🏢 Ownership & Registration
| Registered holder | David Barbarin Aramendia |
| ASN | AS15704 |
| Network Name | Xtra-Telecom-SA-139-47-0-0 |
| CIDR Block | 139.47.0.0/17 |
| RIR | ARIN |
| Network registration country | ES |
| Routing operator | AS15704 - XTRA TELECOM S.A., ES |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR | static.masmovil.com |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
| Forward Hostnames | static.masmovil.com |
DNS Posture
Results describe the queried names. SPF, DMARC and CAA are domain policies, not requirements for every IP. DNSSEC here describes reverse DNS; inconclusive validation does not mean unsigned.
Not assessed: 0 conclusive IP DNS checks.
| caa | Not found at queried name com |
| spf | Unknown / lookup inconclusive static.masmovil.com |
| dmarc | Unknown / lookup inconclusive _dmarc.static.masmovil.com |
| dnssec | Unknown / lookup inconclusive 104.21.47.139.in-addr.arpa |
| fcrDns | Unknown / lookup inconclusive static.masmovil.com |
☁️ Network Classification
| Infrastructure | Unknown |
| Service Purpose | Firewalled / No Services |
| Network Tier | Unknown — Insufficient routing data to classify |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🛡️ Public Network Snapshot
| Origin ASN | AS15704 |
| Network Prefix | 139.47.16.0/21 |
| Route mapping | Found |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-11-05 16:46:32 UTC |
| Last Seen | 2026-11-08 00:57:36 UTC |
| Profile Built | 2026-11-13 08:34:07 UTC |
| Data Freshness | Live |
| Signal Types | 13 |
| Total Observations | 19 |
Full dossier details are available via our API.
❓ Frequently Asked Questions About 139.47.21.104
Who owns the IP address 139.47.21.104?
139.47.21.104 is registered to David Barbarin Aramendia. The address falls within the 139.47.0.0/17 network block. Registration is held at ARIN.
Where is 139.47.21.104 located?
Geolocation data places 139.47.21.104 in Valencia, Valencia, Spain. The local time zone is Europe/Madrid. IP geolocation is approximate, not a precise physical address. Registration country and certificate organization addresses do not establish service location.
Is 139.47.21.104 malicious or safe?
139.47.21.104 currently carries a low risk assessment, meaning no significant threat indicators have been observed. This assessment is generated from continuously collected signals and can change over time.
What is the hostname for 139.47.21.104?
The reverse DNS (PTR) record for 139.47.21.104 is static.masmovil.com. This hostname is not forward-confirmed, so it should be treated as a weak signal.