Data as of Nov 6, 2026
162.82.128.0/17
No anonymizer space · no proxy exits in 30 daysOakwood Healthcare Inc · space held by William Beaumont Hospital
Operators, sellers and brokers
Corporate gateways
| Name | Parent | In 162.82.128.0/17 | /24s |
|---|---|---|---|
| Zscaler | 2560.78% | 1 |
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 162.82.0.0/16 since Aug 2025 | AS30710 | Business | William Beaumont Hospital |
More specific
Announcements inside
| Prefix | Origin | Type | Operator | Holder | RPKI |
|---|---|---|---|---|---|
| 162.82.185.0/24 since Nov 2024 | AS12099 | Business | William Beaumont Hospital | ||
| 162.82.186.0/24 since Nov 2024 | AS12099 | Business | William Beaumont Hospital | ||
| 162.82.254.0/24 since Sep 2025 | AS22616 | Corporate gateway | Corporate gatewaysoperated by Zscaler | William Beaumont Hospital |
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
32,768 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Business | 32,512 | >99% | 5 | |
| Corporate gateway | 256 | 0.78% | 1 |
Network & registry
Origin network
AS12099
US
- Name
- Oakwood Healthcare Inc
- Type
- Business
- Registered
- Mar 11, 2008
- Domain
- oakwood.org
- Industry
- Hospitals and Medical Centers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Apr 2023
- Current origin since
- Apr 2023 · 3.6 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 162.82.0.0/16 | AS12099 | /24 | ARIN | RPKI valid |
| 162.82.0.0/16 | AS30710 | /24 | ARIN | Another network |
| 162.82.0.0/16 | AS46620 | /24 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS12099 | RADB | Spectrum Health / Corewell health | MAINT-AS26554 | Dec 5, 2025 |
Whois
Registration for this announcement
- Range
- 162.
82. 0. 0/ 16 - Netname
- WMBEAUNET
- Registrant
- William Beaumont Hospital
- Organization
- William Beaumont Hospital (WBH-Z)
- Org address
- 3601 West 13 Mile Road, Royal Oak, MI, 48073
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-162-82-0-0-1
- Parent
- NET-162-0-0-0-0
- Created
- Jul 30, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 30, 1992
- Status
- assigned
Report abuse
Abuse contact
- william.
gresham@ corewellhealth. org - Name
- Gresham, William
- Phone
- +1-616-460-5274
- Handle
- GRESH26-ARIN