Data as of Nov 11, 2026
67.66.136.0/21
No anonymizer space · no proxy exits in 30 daysSSM Health Care · space held by AT&T Enterprises, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 67.64.0.0/14 since Oct 2013 | AS7018 | Residential | 296 20 always on | AT&T Enterprises, LLC |
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 67.66.136.0/23 since Sep 2019 | AS26305 | Business | AT&T Enterprises, LLC | |
| 67.66.140.0/23 since Oct 2019 | AS26305 | Business | AT&T Enterprises, LLC | |
| 67.66.142.0/24 since Sep 2019 | AS26305 | Business | AT&T Enterprises, LLC |
Network & registry
Origin network
AS26305
US
- Name
- SSM Health Care
- Type
- Business
- Registered
- Aug 16, 2002
- Domain
- ssmhealth.com
- Industry
- Health Care Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 67.
64. 0. 0/ 14 - Netname
- SBCIS-SIS80
- Registrant
- AT&T Enterprises, LLC
- Organization
- AT&T Enterprises, LLC (AEL-360)
- Org address
- 208 S. Akard St., Dallas, TX, 75202
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-67-64-0-0-1
- Parent
- NET-67-0-0-0-0
- Created
- Jun 13, 2002
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 13, 2002
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN