Addresses
2,048
2.0K
Sub-ranges
23+
within this block
PTR Density
0.0%
0 of 2.0K IPs have PTR
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.
65/100
Moderate
How this score is built
- Baseline (neutral) 65
- Trust score 65 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Ranges inside 139.177.72.0/21
| CIDR | IPs | Organization | ASN | Country |
|---|---|---|---|---|
| 139.177.76.0/22 | 1.0K | — | — | US |
| 139.177.76.0/22 | 1.0K | — | — | US |
| 139.177.74.0/23 | 512 | — | — | US |
| 139.177.74.0/23 | 512 | — | — | US |
| 139.177.74.0/23 | 512 | — | — | US |
| 139.177.72.0/23 | 512 | BroadSoft, Inc. | AS13445 | US |
| 139.177.72.0/23 | 512 | — | AS13445 | CA |
| 139.177.78.0/24 | 256 | — | AS21534 | US |
| 139.177.78.0/24 | 256 | BroadSoft, Inc. | AS21534 | US |
| 139.177.72.0/24 | 256 | Cisco Webex LLC | AS13445 | US |
| 139.177.76.0/24 | 256 | — | AS21534 | AU |
| 139.177.76.0/24 | 256 | BroadSoft, Inc. | AS21534 | US |
| 139.177.73.0/24 | 256 | BroadSoft, Inc. | AS21534 | US |
| 139.177.77.0/24 | 256 | — | — | US |
| 139.177.79.0/24 | 256 | — | — | US |
| 139.177.73.128/25 | 128 | — | — | CA |
| 139.177.73.128/25 | 128 | — | — | US |
| 139.177.73.0/25 | 128 | — | — | US |
| 139.177.73.0/25 | 128 | — | — | US |
| 139.177.72.128/25 | 128 | — | — | CA |
| 139.177.72.128/25 | 128 | — | — | US |
| 139.177.72.0/25 | 128 | — | — | US |
| 139.177.72.0/25 | 128 | — | — | US |
Geolocation
First 256 of 2,048 IP addresses in 139.177.72.0/21
139.177.72.0
139.177.72.1
139.177.72.2
139.177.72.3
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139.177.72.254
139.177.72.255
+ 1.8K more (range too large to list inline)
RIR Ownership History
Atom feed ⇲Allocation changes captured weekly from regional internet registry (RIR) delegation files.
| Date | Event | From | To |
|---|---|---|---|
| 2026-05-10 | New Allocation | — | US |
Frequently Asked Questions
What is 139.177.72.0/21?
139.177.72.0/21 is a CIDR network block containing 2,048 IPv4 addresses (from 139.177.72.0 to 139.177.79.255). CIDR notation combines an IP address with a prefix length to define a range of addresses.
Who owns the 139.177.72.0/21 network?
The 139.177.72.0/21 range is allocated to an unknown organization from United States.
Last updated: 2026-09-12 02:56:41 UTC
