172.56.36.220
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
- Active-threat / abuse risk −20
- Not on any threat blocklist +5
- Has a reverse-DNS (PTR) record +5
- Established allocation (14y) +3
- Trust score 58 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
DNS records
- Reverse DNS (PTR)
- ue.tmodns.net
- Forward-confirmed (FCrDNS)
- Not checked
- PTR TTL
- 900 s
- Reverse DNS last checked
- 2026-09-10 16:58 UTC
Reverse & forward DNS collected by the WorldIP scanner fleet — FCrDNS confirms the PTR hostname resolves back to this IP.
Network Allocation for 172.56.36.220
- CIDR range
- 172.56.36.0/22
- IP range (int)
- 2,889,360,384 — 2,889,361,407
- Prefix length
- /22
- Organization
- T-Mobile USA, Inc.
- ASN
- AS21928
- ASN name
- T-Mobile USA, Inc.
- Location
- Birmingham, Alabama, United States
- Coordinates
- 33.484900, -86.859600
- Accuracy radius
- 100 km
- Postal code
- 35211
- Regional Internet Registry
- ARIN
- Allocated
- 2012-09-18
- Data source(s)
- maxmind_city, maxmind_asn, maxmind_country, ipinfo_lite
- Last updated
- 2026-09-10 05:24:19
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 172.56.36.220?
172.56.36.220 is allocated to T-Mobile USA, Inc. (AS21928), registered in Birmingham, United States.
Where is 172.56.36.220 located?
The geolocation for 172.56.36.220 maps to Birmingham, 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 172.56.36.220 on?
172.56.36.220 belongs to the 172.56.36.0/22 network block announced by AS21928. This range contains 1,024 addresses.
Does 172.56.36.220 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.
