Data as of Nov 3, 2026
170.138.0.0/16
No anonymizer space · no proxy exits in 30 daysUnitedhealthcare · space held by UnitedHealth Group Incorporated
Announcements
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 170.138.27.0/24 since Aug 2025 | AS10879 | Business | UnitedHealth Group Incorporated | |
| 170.138.29.0/24 since Aug 2025 | AS10879 | Business | UnitedHealth Group Incorporated | |
| 170.138.52.0/24 since Aug 2025 | AS10879 | Business | UnitedHealth Group Incorporated | |
| 170.138.53.0/24 since Aug 2025 | AS10879 | Business | UnitedHealth Group Incorporated | |
| 170.138.144.0/24 since Sep 2025 | AS10879 | Business | UnitedHealth Group Incorporated | |
| 170.138.170.0/24 since Aug 2025 | AS10879 | Business | UnitedHealth Group Incorporated | |
| 170.138.172.0/22 since Aug 2025 | AS10879 | Business | UnitedHealth Group Incorporated | |
| 170.138.176.0/24 since Aug 2025 | AS10879 | Business | UnitedHealth Group Incorporated | |
| 170.138.252.0/24 since May 2025 | AS14045 | Business | UnitedHealth Group Incorporated | |
| 170.138.253.0/24 since May 2025 | AS14045 | Business | UnitedHealth Group Incorporated | |
| 170.138.254.0/23 since Dec 2024 | AS10879 | Business | UnitedHealth Group Incorporated |
Network & registry
Origin network
AS10879
US
- Name
- Unitedhealthcare
- Type
- Business
- Registered
- Dec 17, 1997
- Domain
- uhc.com
- Website
- www.uhc.com
- Industry
- Recreation, Sports, and Performing Arts
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Mar 2024
- Current origin since
- Aug 2025 · 1.2 yr
- Origin networks
- 2
- Last change of origin
- Aug 2025
Recorded history
History
- Handoffs
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS10879 | RADB | UnitedHealth Group Incorporated | MAINT-UHG | Aug 22, 2025 |
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 170.138.200.0/22 | AS10910 | RADB | PNAP-NYC webmd-routes | MAINT-AS1828 | Nov 13, 2023 |
| 170.138.200.0/24 | AS10910 | RADB | PNAP-NYC webmd-routes | MAINT-AS1828 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 170.138.0.0/16
- Netname
- EMDEON-BUSINESS-SERVICES-LLC
- Registrant
- UnitedHealth Group Incorporated
- Organization
- UnitedHealth Group Incorporated (UHC-5)
- Org address
- IP & DNS Team, Plymouth, MN, 55442
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-170-138-0-0-1
- Parent
- NET-170-0-0-0-0
- Created
- May 18, 1994
- RIR
- ARIN
- Country
- US
- Delegated
- May 18, 1994
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- United Healthcare Network OC
- Phone
- +1-763-744-1588
- Handle
- UHNO-ARIN