144.121.41.183
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
- Not on any threat blocklist +5
- Has a reverse-DNS (PTR) record +5
- Isp allocation +5
- Established allocation (10y) +3
- Trust score 83 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- 144.121.41.183.lightower.net
- Forward-confirmed (FCrDNS)
- ✗ Mismatch
- PTR TTL
- 3600 s
- Reverse DNS last checked
- 2026-07-23 08:50 UTC
- Forward DNS last checked
- 2026-07-23 08:50 UTC
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Network Allocation for 144.121.41.183
- CIDR range
- 144.121.40.0/23
- IP range (int)
- 2,423,859,200 — 2,423,859,711
- Prefix length
- /23
- Organization
- Crown Castle Fiber LLC
- ASN
- AS46887
- ASN name
- Crown Castle Fiber LLC
- Location
- Worcester, Massachusetts, United States
- Coordinates
- 42.262100, -71.800500
- Accuracy radius
- 50 km
- Postal code
- 01608
- Regional Internet Registry
- ARIN
- Allocated
- 2016-04-29
- Data source(s)
- maxmind_asn, ipinfo_lite, maxmind_city, maxmind_country
- Last updated
- 2026-07-09 18:20:40
BGP Routing
Live BGP anomalies →Origin AS announcing the most-specific prefix that covers this IP, observed across our RIPE RIS collectors.
RIR Ownership History
Atom feed ⇲Allocation changes captured weekly from regional internet registry (RIR) delegation files for ranges that have contained this IP.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | New Allocation | — | US |
See the full history for 144.121.0.0/17.
Frequently Asked Questions
Who owns 144.121.41.183?
144.121.41.183 is allocated to Crown Castle Fiber LLC (AS46887), registered in Worcester, United States.
Where is 144.121.41.183 located?
The geolocation for 144.121.41.183 maps to Worcester, United States 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 144.121.41.183 on?
144.121.41.183 belongs to the 144.121.40.0/23 network block announced by AS46887. This range contains 512 addresses.
Does 144.121.41.183 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.
