65,536 routable29 ASes
/16 subnet
205.172.0.0/16
Where this subnet is, who announces it, and what our databases hold in it. Below, every /24 inside it; open one for its addresses.
65,536
routable addresses
65,536
geolocated
2
countries
29
announcing ASes
58
announced prefixes
29
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- United States63,232 · 96.48%
- Canada2,304 · 3.52%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
- AS18756Level 3 Parent, LLC9,216 · 14.06%
- AS26413IP4B Inc.2,048 · 3.13%
- AS88Princeton University1,024 · 1.56%
- AS174Cogent Communications, LLC1,024 · 1.56%
- AS1436Meridian Health System1,024 · 1.56%
- AS1929University of Massachusetts - AMHERST1,024 · 1.56%
- AS6534Charter Communications Inc1,024 · 1.56%
- AS7015Comcast Cable Communications, LLC1,024 · 1.56%
- AS7153ISO New England Inc.1,024 · 1.56%
- AS8103Florida Department of Management Services - Division of Telecommunications1,024 · 1.56%
What the databases see
Addresses each address-keyed database holds in this block, as a share of its routable addresses. Counts overlap: one address can be in several.
- 0.00%
- 0.04%
- 0.00%
- None here
- 0.00%
- None here
- None here
- Hosting IP2,3043.52%
- None here
- Carrier IP5120.78%
- None here
- None here
- None here
- None here
- None here
- None here
- None here
Announced prefixes
Every prefix inside this block that BGP Route saw announced, with its origin and RPKI status.
| PREFIX | ORIGIN | COUNTRY | RPKI | PEERS | FIRST SEEN |
|---|---|---|---|---|---|
| 205.172.0.0/22 | AS40300DR Fortress, LLC | United States | Valid | 18 | 2026-10-02 |
| 205.172.12.0/22 | AS32509Sedgwick County Information Services | United States | Not found | 18 | 2026-10-02 |
| 205.172.16.0/22 | AS6534Charter Communications Inc | United States | Valid | 18 | 2026-10-02 |
| 205.172.20.0/24 | AS7015Comcast Cable Communications, LLC | United States | Not found | 17 | 2026-10-02 |
| 205.172.21.0/24 | AS7015Comcast Cable Communications, LLC | United States | Not found | 17 | 2026-10-02 |
| 205.172.22.0/24 | AS7015Comcast Cable Communications, LLC | United States | Not found | 17 | 2026-10-02 |
| 205.172.23.0/24 | AS7015Comcast Cable Communications, LLC | United States | Not found | 17 | 2026-10-02 |
| 205.172.24.0/22 | AS174Cogent Communications, LLC | United States | Not found | 17 | 2026-10-02 |
| 205.172.43.0/24 | AS7312FDM4 International Inc. | Canada | Not found | 17 | 2026-10-02 |
| 205.172.45.0/24 | AS47101City of Yakima | United States | Not found | 17 | 2026-10-02 |
| 205.172.48.0/24 | AS2048State of Louisiana Office of Technology Services | United States | Not found | 17 | 2026-10-02 |
| 205.172.49.0/24 | AS2048State of Louisiana Office of Technology Services | United States | Not found | 17 | 2026-10-02 |
| 205.172.52.0/24 | AS397908Alabama Department of Transportation | United States | Not found | 17 | 2026-10-02 |
| 205.172.53.0/24 | AS397908Alabama Department of Transportation | United States | Not found | 17 | 2026-10-02 |
| 205.172.54.0/24 | AS397908Alabama Department of Transportation | United States | Not found | 17 | 2026-10-02 |
| 205.172.56.0/24 | AS395839HOSTKEY | United States | Valid | 18 | 2026-10-02 |
| 205.172.57.0/24 | AS395839HOSTKEY | United States | Valid | 18 | 2026-10-02 |
| 205.172.58.0/24 | AS395839HOSTKEY | United States | Valid | 18 | 2026-10-02 |
| 205.172.59.0/24 | AS395839HOSTKEY | United States | Valid | 18 | 2026-10-02 |
| 205.172.68.0/24 | AS40585SCC Soft Computer | United States | Not found | 17 | 2026-10-02 |
| 205.172.69.0/24 | AS40585SCC Soft Computer | United States | Not found | 17 | 2026-10-02 |
| 205.172.70.0/23 | AS40585SCC Soft Computer | United States | Not found | 17 | 2026-10-02 |
| 205.172.72.0/21also AS18756 | AS10753Level 3 Parent, LLC | United States | Not found | 8 | 2026-10-02 |
| 205.172.72.0/21also AS10753 | AS18756Level 3 Parent, LLC | United States | Not found | 9 | 2026-10-06 |
| 205.172.80.0/20also AS18756 | AS10753Level 3 Parent, LLC | United States | Not found | 8 | 2026-10-02 |
| 205.172.80.0/20also AS10753 | AS18756Level 3 Parent, LLC | United States | Not found | 9 | 2026-10-06 |
| 205.172.96.0/21also AS18756 | AS10753Level 3 Parent, LLC | United States | Not found | 8 | 2026-10-02 |
| 205.172.96.0/21also AS10753 | AS18756Level 3 Parent, LLC | United States | Not found | 9 | 2026-10-06 |
| 205.172.104.0/22also AS18756 | AS10753Level 3 Parent, LLC | United States | Not found | 8 | 2026-10-02 |
| 205.172.104.0/22also AS10753 | AS18756Level 3 Parent, LLC | United States | Not found | 9 | 2026-10-06 |
| 205.172.120.0/21 | AS26413IP4B Inc. | Canada | Not found | 18 | 2026-10-02 |
| 205.172.132.0/24 | AS399721Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | United States | Not found | 17 | 2026-10-02 |
| 205.172.133.0/24 | AS23494Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | United States | Not found | 17 | 2026-10-02 |
| 205.172.134.0/24 | AS23494Blue Cross Blue Shield of Illinois or Blue Cross Blue Shield of Texas | United States | Not found | 17 | 2026-10-02 |
| 205.172.145.0/24 | AS13996Dish Network Corporation | United States | Not found | 17 | 2026-10-02 |
| 205.172.147.0/24 | AS18570EchoStar Broadcasting Corperation | United States | Not found | 17 | 2026-10-02 |
| 205.172.160.0/24 | AS402799WawaCloud Inc. | United States | Valid | 18 | 2026-10-29 |
| 205.172.161.0/24 | AS150670WLX Limited | United States | Valid | 17 | 2026-10-29 |
| 205.172.164.0/22 | AS88Princeton University | United States | Not found | 19 | 2026-10-02 |
| 205.172.168.0/22 | AS1929University of Massachusetts - AMHERST | United States | Not found | 19 | 2026-10-02 |
| 205.172.169.0/24 | AS1929University of Massachusetts - AMHERST | United States | Not found | 1 | 2026-10-02 |
| 205.172.172.0/24 | AS36295Florida High Speed Internet | United States | Not found | 18 | 2026-10-02 |
| 205.172.173.0/24 | AS36295Florida High Speed Internet | United States | Not found | 18 | 2026-10-02 |
| 205.172.174.0/24 | AS36295Florida High Speed Internet | United States | Not found | 18 | 2026-10-02 |
| 205.172.175.0/24 | AS36295Florida High Speed Internet | United States | Not found | 18 | 2026-10-02 |
| 205.172.176.0/22 | AS16509Amazon.com, Inc. | United States | Valid | 17 | 2026-10-02 |
| 205.172.187.0/24 | AS40588York Hospital | United States | Not found | 17 | 2026-10-02 |
| 205.172.192.0/22 | AS1436Meridian Health System | United States | Not found | 19 | 2026-10-02 |
| 205.172.229.0/24 | AS7018AT&T Enterprises, LLC | United States | Not found | 17 | 2026-10-02 |
| 205.172.232.0/22 | AS20385AccessLine Communications Corp. | United States | Not found | 17 | 2026-10-02 |
| 205.172.232.0/23 | AS20385AccessLine Communications Corp. | United States | Not found | 18 | 2026-10-02 |
| 205.172.234.0/23 | AS20385AccessLine Communications Corp. | United States | Not found | 18 | 2026-10-02 |
| 205.172.236.0/22 | AS8103Florida Department of Management Services - Division of Telecommunications | United States | Not found | 17 | 2026-10-02 |
| 205.172.240.0/23 | AS7153ISO New England Inc. | United States | Valid | 17 | 2026-10-02 |
| 205.172.240.0/24 | AS7153ISO New England Inc. | United States | Valid | 17 | 2026-10-02 |
| 205.172.241.0/24 | AS7153ISO New England Inc. | United States | Valid | 17 | 2026-10-02 |
| 205.172.242.0/24 | AS7153ISO New England Inc. | United States | Valid | 17 | 2026-10-02 |
| 205.172.243.0/24 | AS7153ISO New England Inc. | United States | Valid | 17 | 2026-10-02 |
Every /24 inside it
00 · Evaluate
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01 · License
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