Data as of Nov 5, 2026
204.178.8.0/21
No anonymizer space · no proxy exits in 30 daysAT&T Enterprises, LLC · space held by Verizon Business
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 204.176.0.0/14 since May 2005 | AS701 | Internet provider | 1 | Verizon Business |
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 |
|---|---|---|---|---|---|---|
| 204.176.0.0/14 | 262,144 | UUNETCBLK176-179 | Verizon Business (MCICS) · US | Direct Allocation | Oct 17, 1994 | abuse@ |
| └ 204.178.0.0/20 | 4,096 | UU-204-178-0-0 | AT&T Laboratories (ATTLAB) · US | Reassigned | May 1, 1997 | — |
Network & registry
IPv4 market
Holder
- Organization
- Verizon Business
- Handle
- MCICS
- Range
- 204.
176. 0. 0/ 14 - Registration type
- Direct Allocation
- Record created
- Oct 17, 1994
- Legacy
- yes
Origin network
AS6431
US
- Name
- AT&T Enterprises, LLC
- Type
- Business
- Registered
- Apr 12, 1996
- Domain
- att.com
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Oct 2013
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 204.
178. 0. 0/ 20 - Netname
- UU-204-178-0-0
- Registrant
- AT&T Laboratories
- Organization
- AT&T Laboratories (ATTLAB)
- Org address
- 200 S. Laurel Ave, Middletown, NJ, 07748
- Org country
- US
- Type
- Reassigned
- Handle
- NET-204-178-0-0-1
- Parent
- NET-204-176-0-0-1
- Created
- May 1, 1997
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 17, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
verizon. com - Name
- abuse
- Phone
- +1-800-900-0241
- Handle
- ABUSE3-ARIN