65,536 routable41 ASes
/16 subnet
199.181.0.0/16
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
3
countries
41
announcing ASes
49
announced prefixes
42
anonymous addresses
Where it is
Addresses IP Geolocation places in each country, as a share of those it places.
- United States64,768 · 98.83%
- Canada512 · 0.78%
- United Kingdom256 · 0.39%
Who announces it
Each /24 counted for the AS announcing most of it, as a share of the routable addresses.
- AS26633Texas Woman's University4,096 · 6.25%
- AS18530Isomedia, Inc.1,280 · 1.95%
- AS5078OneNet1,024 · 1.56%
- AS11563NetEnterprise Inc.1,024 · 1.56%
- AS8075Microsoft768 · 1.17%
- AS22773Cox Communications Inc.768 · 1.17%
- AS7029Windstream Communications LLC512 · 0.78%
- AS19355San Mateo Regional Network, Inc.512 · 0.78%
- AS20355DartPoints Operating Company, LLC512 · 0.78%
- AS22043STERIS Corporation512 · 0.78%
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.
- VPN IP310.05%
- 0.02%
- None here
- None here
- None here
- None here
- None here
- Hosting IP1,5362.34%
- CDN IP2660.41%
- None here
- Anycast IP2560.39%
- SSH IP220.03%
- 0.00%
- 0.05%
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 |
|---|---|---|---|---|---|
| 199.181.16.0/20 | AS26633Texas Woman's University | United States | not found | 16 | 2026-10-02 |
| 199.181.32.0/24 | AS8075Microsoft | United States | valid | 16 | 2026-10-02 |
| 199.181.34.0/24 | AS8075Microsoft | United States | valid | 16 | 2026-10-02 |
| 199.181.39.0/24 | AS8075Microsoft | United States | valid | 16 | 2026-10-02 |
| 199.181.67.0/24 | AS17378TierPoint, LLC | United States | not found | 16 | 2026-10-02 |
| 199.181.77.0/24 | AS8161Insight Direct USA, Inc. | United Kingdom | not found | 16 | 2026-10-02 |
| 199.181.81.0/24 | AS54764Casting Workbook Services Inc. | Canada | not found | 17 | 2026-10-02 |
| 199.181.82.0/24 | AS398551City of Sarasota, FL | United States | valid | 19 | 2026-10-02 |
| 199.181.88.0/22 | AS5078OneNet | United States | not found | 19 | 2026-10-02 |
| 199.181.92.0/22 | AS11563NetEnterprise Inc. | United States | not found | 16 | 2026-10-02 |
| 199.181.96.0/24 | AS13913Affiliated Monitoring, Inc. | United States | not found | 16 | 2026-10-02 |
| 199.181.107.0/24 | AS40475Applied Operations, LLC | United States | not found | 16 | 2026-10-02 |
| 199.181.122.0/23 | AS19355San Mateo Regional Network, Inc. | United States | not found | 17 | 2026-10-02 |
| 199.181.127.0/24 | AS399701NAVAERA WORLDWIDE, LLC | United States | not found | 16 | 2026-10-02 |
| 199.181.130.0/24 | AS40051Disney Worldwide Services, Inc. | United States | not found | 16 | 2026-10-02 |
| 199.181.136.0/24 | AS22043STERIS Corporation | United States | not found | 16 | 2026-10-02 |
| 199.181.137.0/24 | AS22043STERIS Corporation | United States | not found | 16 | 2026-10-02 |
| 199.181.140.0/24 | AS47032City of Miami | United States | not found | 16 | 2026-10-02 |
| 199.181.149.0/24 | AS1747IBM | United States | not found | 16 | 2026-10-02 |
| 199.181.152.0/22 | AS22773Cox Communications Inc. | United States | not found | 16 | 2026-10-02 |
| 199.181.154.0/24 | AS53571PRECISION CASTPARTS CORP | United States | valid | 16 | 2026-10-02 |
| 199.181.163.0/24 | AS6062NETPLEX | United States | not found | 16 | 2026-10-02 |
| 199.181.164.0/22 | AS18530Isomedia, Inc. | United States | not found | 16 | 2026-10-02 |
| 199.181.168.0/24 | AS18530Isomedia, Inc. | United States | not found | 16 | 2026-10-02 |
| 199.181.172.0/24 | AS4543The New York Times Company | United States | valid | 16 | 2026-10-02 |
| 199.181.176.0/24 | AS29840Grambling State University | United States | not found | 18 | 2026-10-02 |
| 199.181.178.0/24 | AS22677Charter Communications LLC | United States | not found | 17 | 2026-10-02 |
| 199.181.179.0/24 | AS3356Level 3 Parent, LLC | United States | not found | 16 | 2026-10-02 |
| 199.181.183.0/24 | AS33374Brock Solutions Inc | Canada | not found | 16 | 2026-10-02 |
| 199.181.192.0/23 | AS20355DartPoints Operating Company, LLC | United States | not found | 16 | 2026-10-02 |
| 199.181.196.0/24 | AS396072Southern California Association of Governments | United States | not found | 16 | 2026-10-02 |
| 199.181.197.0/24 | AS209242Cloudflare London, LLC | United States | not found | 17 | 2026-10-02 |
| 199.181.201.0/24 | AS33593Harris Trust & Savings Bank | United States | not found | 16 | 2026-10-02 |
| 199.181.202.0/24 | AS33593Harris Trust & Savings Bank | United States | not found | 16 | 2026-10-02 |
| 199.181.204.0/24 | AS398319Aaron N Martin ISA LLC | United States | not found | 17 | 2026-10-02 |
| 199.181.206.0/24 | AS22328Cedars-Sinai Health Systems | United States | not found | 17 | 2026-10-02 |
| 199.181.215.0/24 | AS402368hostgsm.com LLC | United States | valid | 16 | 2026-10-07 |
| 199.181.220.0/24 | AS27632Tractor Supply Company | United States | valid | 16 | 2026-10-02 |
| 199.181.231.0/24 | AS7029Windstream Communications LLC | United States | not found | 16 | 2026-10-02 |
| 199.181.232.0/24 | AS7029Windstream Communications LLC | United States | not found | 16 | 2026-10-02 |
| 199.181.238.0/24 | AS393336Catalyst Host LLC | United States | valid | 16 | 2026-10-02 |
| 199.181.240.0/24 | AS35965Electrical District No.3 of Pinal County | United States | not found | 16 | 2026-10-02 |
| 199.181.243.0/24 | AS11042NETWORK TRANSIT HOLDINGS LLC | United States | not found | 16 | 2026-10-02 |
| 199.181.246.0/24 | AS46943Global Internet eXchange | United States | not found | 16 | 2026-10-02 |
| 199.181.247.0/24 | AS13370Ziply Fiber | United States | valid | 16 | 2026-10-02 |
| 199.181.252.0/23 | AS26585Securities Industry Automation Corporation | United States | not found | 16 | 2026-10-02 |
| 199.181.252.0/24 | AS26585Securities Industry Automation Corporation | United States | not found | 17 | 2026-10-02 |
| 199.181.253.0/24 | AS26585Securities Industry Automation Corporation | United States | not found | 17 | 2026-10-02 |
| 199.181.255.0/24 | AS400375City of Santa Clara, Ca | United States | not found | 16 | 2026-10-02 |
Every /24 inside it
00 · Evaluate
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01 · License
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Redistribution, when the data ships onward inside what you sell, priced by scope rather than by seat.
Annual terms, a named contact, and monthly, quarterly or yearly payment.