Data as of Nov 3, 2026
206.107.211.0/24
No anonymizer space · no proxy exits in 30 daysJohn Muir Health · space held by Cogent Communications, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 206.104.0.0/14 since May 2024 | AS174 | Internet provider | 16 1 always on | Cogent Communications, LLC |
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 |
|---|---|---|---|---|---|---|
| 206.104.0.0/14 | 262,144 | COGENT-206-104-0 | Cogent Communications, LLC (COGC) · US | Direct Allocation | Aug 15, 1995 | [email protected] |
| └ 206.107.211.0/24 | 256 | SPRINT-CE6BD3 | John Muir/Mt. Diablo Health System (JMDHS) · US | Reassigned | Aug 11, 1998 | — |
Network & registry
IPv4 market
Holder
- Organization
- Cogent Communications, LLC
- Handle
- COGC
- Range
- 206.104.0.0/14
- Registration type
- Direct Allocation
- Record created
- Aug 15, 1995
- Legacy
- yes
Origin network
AS19312
US
- Name
- John Muir Health
- Type
- Business
- Registered
- Jun 28, 2006
- Domain
- johnmuirhealth.com
- Industry
- Community Groups and Nonprofits
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2007
- Current origin since
- Feb 2007 · 20 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 206.107.211.0/24
- Netname
- SPRINT-CE6BD3
- Registrant
- John Muir/Mt. Diablo Health System
- Organization
- John Muir/Mt. Diablo Health System (JMDHS)
- Org address
- 1400 Treat Blvd., Walnut Creet, CA, 94596
- Org country
- US
- Type
- Reassigned
- Handle
- NET-206-107-211-0-1
- Parent
- NET-206-104-0-0-1
- Created
- Aug 11, 1998
- RIR
- ARIN
- Country
- US
- Delegated
- Aug 15, 1995
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- No, Contact Known
- Phone
- +1-800-555-1234
- Handle
- CKN23-ARIN