Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Long-established allocation (16y) +6
- Not on any threat blocklist +5
- Has a reverse-DNS (PTR) record +5
- Trust score 81 / 100
Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- lo0-0.hdnqe30.dk.ip.tdc.net
- Forward-confirmed (FCrDNS)
- ✗ Mismatch
- PTR TTL
- 43200 s
- Reverse DNS last checked
- 2026-07-20 22:39 UTC
- Forward DNS last checked
- 2026-07-20 22:39 UTC
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Reverse DNS history
How this IP's reverse DNS (PTR) has changed over time, from our scans.
This IP's reverse DNS changes frequently — the timeline below shows the most recent changes.
- lo0-0.rooenqe10.dk.ip.tdc.net — Jul 8, 2026 → present
- lo0-0.skbnqe40.dk.ip.tdc.net — Jul 4, 2026 → Jul 8, 2026
- lo0-0.vjynqe40.dk.ip.tdc.net — Jul 2, 2026 → Jul 4, 2026
- lo0-0.skunqe30.dk.ip.tdc.net — Jun 30, 2026 → Jul 2, 2026
- lo0-0.ebbnqe30.dk.ip.tdc.net — Jun 28, 2026 → Jun 30, 2026
- lo0-0.hvnqe30.dk.ip.tdc.net — Jun 26, 2026 → Jun 28, 2026
- lo0-0.gunnqe30.dk.ip.tdc.net — Jun 25, 2026 → Jun 26, 2026
- lo0-0.topnqe30.dk.ip.tdc.net — Jun 25, 2026 → Jun 25, 2026
- lo0-0.hvnqe40.dk.ip.tdc.net — Jun 23, 2026 → Jun 25, 2026
- lo0-0.ronqe11.dk.ip.tdc.net — Jun 22, 2026 → Jun 23, 2026
- lo0-0.tunenqe40.dk.ip.tdc.net — Jun 19, 2026 → Jun 22, 2026
- lo0-0.skunqe30.dk.ip.tdc.net — Jun 19, 2026 → Jun 19, 2026
- lo0-0.hvnqe40.dk.ip.tdc.net — Jun 19, 2026 → Jun 19, 2026
- lo0-0.ebbnqe30.dk.ip.tdc.net — Jun 16, 2026 → Jun 19, 2026
- lo0-0.gevnqe30.dk.ip.tdc.net — Jun 15, 2026 → Jun 16, 2026
- lo0-0.topnqe30.dk.ip.tdc.net — Jun 15, 2026 → Jun 15, 2026
- lo0-0.bhoenqe30.dk.ip.tdc.net — Jun 14, 2026 → Jun 15, 2026
- lo0-0.vjynqe40.dk.ip.tdc.net — Jun 5, 2026 → Jun 14, 2026
Network Allocation for 2.111.121.1
- CIDR range
- 2.111.112.0/20
- IP range (int)
- 40,857,600 — 40,861,695
- Prefix length
- /20
- Organization
- TDC Holding A/S
- ASN
- AS3292
- ASN name
- TDC Holding A/S
- Location
- Roskilde, Zealand, Denmark
- Coordinates
- 55.652300, 12.080500
- Accuracy radius
- 10 km
- Postal code
- 4000
- Regional Internet Registry
- RIPE
- Allocated
- 2010-05-04
- Data source(s)
- maxmind_city, maxmind_asn, ipinfo_lite, maxmind_country
- Last updated
- 2026-07-21 04:03:43
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
Frequently Asked Questions
Who owns 2.111.121.1?
2.111.121.1 is allocated to TDC Holding A/S (AS3292), registered in Roskilde, Denmark.
Where is 2.111.121.1 located?
The geolocation for 2.111.121.1 maps to Roskilde, Denmark based on MaxMind GeoLite2 data. Accuracy depends on the provider and may represent the ISP's regional hub rather than the exact endpoint.
What network is 2.111.121.1 on?
2.111.121.1 belongs to the 2.111.112.0/20 network block announced by AS3292. This range contains 4,096 addresses.
Does 2.111.121.1 have a reverse DNS record?
Reverse DNS (PTR) records are resolved live when you visit this page. If a PTR record exists, it appears in the Reverse DNS field above. PTR records map IP addresses back to hostnames and are commonly used for email authentication and network diagnostics.
Neighbors
Other addresses in the same /24.
