Data as of Nov 7, 2026
63.240.19.16/28
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC
Network & registry
Announced by
Covering announcement 63.240.0.0/15
- Prefix
- 63.240.0.0/15
- Announced by
- AS7018 AT&T Enterprises, LLC
- Type
- Residential
- Proxy exits
- 1
- RPKI
- No RPKI
- Netname
- CERFNET-BLK-5
- Registrant
- AT&T Enterprises, LLC
- RIR
- ARIN
Origin network
AS7018
US
- Name
- AT&T Enterprises, LLC
- Type
- Internet provider
- Registered
- Jul 30, 1996
- Domain
- att.com
- Website
- www.att.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced 63.240.0.0/15
63.240.0.0/15
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 21 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 63.
240. 0. 0 - 63. 242. 255. 255 - Netname
- CERFNET-BLK-5
- 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-63-240-0-0-1
- Parent
- NET-63-0-0-0-0
- Created
- Nov 3, 1999
- 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