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Data as of Nov 14, 2026

128.35.0.0/17

No anonymizer space · no proxy exits in 30 days

Unitedhealthcare · space held by UnitedHealth Group Incorporated

Announcement

this exact prefix

No RPKI

Announced by

Type

Business

Announcements

More specific

Announcements inside

Prefix	Origin	Type	Holder	RPKI
128.35.64.0/18 since Apr 2017	AS10879	Business	UnitedHealth Group Incorporated
128.35.68.0/22 since Apr 2017	AS10879	Business	UnitedHealth Group Incorporated
128.35.72.0/22 since Apr 2017	AS10879	Business	UnitedHealth Group Incorporated

Network & registry

Announcement Routing history RPKI & IRR Whois & abuse

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern: Stable
First seen: Jan 2016
Current origin since: Jan 2016 · 11 yr
Origin networks: 1

IRR

Route objects on the exact prefix

Origin	Registry	Description	Maintainer	Modified
AS10879	RADB	UnitedHealth Group Incorporated 6150 Trenton Lane Plymouth, MN 55442	MAINT-UHG	Aug 12, 2026
AS13335 not the origin	RADB	UnitedHealth Group Incorporated 6150 Trenton Lane Plymouth, MN 55442	MAINT-UHG	Aug 12, 2026

IRR inside

Route objects inside

Prefix	Origin	Registry	Description	Maintainer	Modified
128.35.0.0/22	AS10879	NTTCOM	Unitedhealth Group Global Services, Inc	MAINT-PLDT	Aug 19, 2014
128.35.0.0/24	AS19905	RADB	AC_UNITEDHEA1	MAINT-AS19905	Nov 13, 2023
128.35.2.0/24	AS19905	RADB	AC_UNITEDHEA1	MAINT-AS19905	Nov 13, 2023
128.35.4.0/24	AS19905	RADB	AC_UNITEDHEA1	MAINT-AS19905	Nov 13, 2023
128.35.7.0/24	AS19905	RADB	AC_UNITEDHEA1	MAINT-AS19905	Nov 13, 2023
128.35.16.0/24	AS19905	RADB	AC_UNITEDHEA1	MAINT-AS19905	Nov 13, 2023
128.35.32.0/24	AS19905	RADB	AC_UNITEDHEA1	MAINT-AS19905	Nov 13, 2023