Data as of Nov 15, 2026
204.99.0.0/17
1 residential-proxy exit · 30 daysOmnicare, Inc. · space held by The University of Arizona
Residential-proxy exits
Proxy exits
1
<0.01% of its addresses · 30 days
Spread
1 of 128
/24s with at least one exit
Providers
4
selling exits here
Oct 16, 2026 – Nov 14, 2026
Exits seen per day
2 observations
Proxy providers listing exits
- Ake.net
- AnyIP
- Bright Data
- FloppyData
Announcements
More specific
Announcements inside
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 204.99.13.0/24 since Feb 2020 | AS18862 | Business | The University of Arizona | ||
| 204.99.18.0/24 since Feb 2020 | AS18862 | Business | The University of Arizona | ||
| 204.99.19.0/24 since Feb 2020 | AS18862 | Business | 1 | The University of Arizona | |
| 204.99.22.0/23 since Feb 2020 | AS18862 | Business | The University of Arizona | ||
| 204.99.50.0/24 since Mar 2020 | AS18862 | Business | The University of Arizona | ||
| 204.99.118.0/24 since Feb 2020 | AS18862 | Business | The University of Arizona |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 204.99.0.0/17 | 32,768 | ARIZ-FORMER-WEST | The University of Arizona (UOAZ-Z) · US | Direct Allocation | Jul 12, 1994 | abuse@ |
| └ 204.99.0.0/17 | 32,768 | PCSHLTH | PCS Health Systems (PHS-2) · US | Reassigned | Aug 18, 1994 | — |
Network & registry
Registry
Holder
- Organization
- The University of Arizona
- Handle
- UOAZ-Z
- Range
- 204.
99. 0. 0/ 17 - Registration type
- Direct Allocation
- Record created
- Jul 12, 1994
- Legacy
- yes
Origin network
AS18862
US
- Name
- Omnicare, Inc.
- Type
- Business
- Registered
- Oct 18, 2000
- Domain
- omnicare.com
- Industry
- Health Care Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- Feb 2020 · 6.7 yr
- Origin networks
- 3
- Last change of origin
- Feb 2020
Recorded history
History
- Handoffs
- 2
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS18862 | RADB | V4-PUB-CB-ANNOUNCED | MAINT-AS22773 | Oct 22, 2024 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 204.99.14.0/24 | AS18862 | RADB | V4-PUB-CB-ANNOUNCED | MAINT-AS22773 | Oct 22, 2024 |
| 204.99.16.0/24 | AS18862 | RADB | V4-PUB-CB-ANNOUNCED | MAINT-AS22773 | Oct 22, 2024 |
| 204.99.17.0/24 | AS18862 | RADB | V4-PUB-CB-ANNOUNCED | MAINT-AS22773 | Oct 22, 2024 |
Whois
Registration for this announcement
- Range
- 204.
99. 0. 0/ 17 - Netname
- PCSHLTH
- Registrant
- PCS Health Systems
- Organization
- PCS Health Systems (PHS-2)
- Org address
- 9501 East Shea Blvd., Scottsdale, AZ, 85260
- Org country
- US
- Type
- Reassigned
- Handle
- NET-204-99-0-0-2
- Parent
- NET-204-99-0-0-1
- Created
- Aug 18, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- Jul 12, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
arizona. edu - Name
- Abuse Contact
- Phone
- +1-520-621-6710
- Handle
- ABUSE2144-ARIN