Data as of Nov 13, 2026
63.241.90.0/24
1 residential-proxy exit · 30 daysAlameda Health System · space held by AT&T Enterprises, LLC
Residential-proxy exits
Proxy exits
1
0.39% of its addresses · 30 days
Providers
3
selling exits here
Oct 14, 2026 – Nov 11, 2026
Exits seen per day
7 observations
Proxy providers listing exits
- Byteful
- RainProxy
- VitalExclusive
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 63.240.0.0/15 since May 2005 | AS7018 | Residential | 2 | AT&T Enterprises, 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 |
|---|---|---|---|---|---|---|
| 63. | 196,608 | CERFNET-BLK-5 | AT&T Enterprises, LLC (AEL-360) · US | Direct Allocation | Nov 3, 1999 | abuse@ |
| └ 63.241.90.0/24 | 256 | ATTWH-63-241-90-0-24-1102215847 | CI - Alameda County Medical Center SID-19123 (C02701931) · US | Reassigned | Feb 21, 2011 | abuse@ via CERFNET-BLK-5 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
IPv4 market
Holder
- Organization
- AT&T Enterprises, LLC
- Handle
- AEL-360
- Range
- 63.
240. 0. 0 - 63. 242. 255. 255 - Registration type
- Direct Allocation
- Record created
- Nov 3, 1999
Origin network
AS53825
US
- Name
- Alameda Health System
- Type
- Business
- Registered
- Jul 5, 2011
- Domain
- alamedahealthsystem.org
- Industry
- Hospitals and Medical Centers
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Sep 2011
- Current origin since
- Sep 2011 · 15 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 63.
241. 90. 0/ 24 - Netname
- ATTWH-63-241-90-0-24-1102215847
- Registrant
- CI - Alameda County Medical Center SID-19123
- Organization
- CI - Alameda County Medical Center SID-19123 (C02701931)
- Type
- Reassigned
- Handle
- NET-63-241-90-0-1
- Parent
- NET-63-240-0-0-1
- Created
- Feb 21, 2011
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 3, 1999
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN