Data as of Nov 11, 2026
199.176.76.0/24
Anonymizer · Datacenter proxyLS4KDC Limited · space held by AT&T Services, Inc.
Announcement
this exact prefix
RPKI invalid (origin)
Announced by
Type
Datacenter proxy
Risk
85 / 100 · Critical
IPv4 market
Path
3 · Announced by
AS214760 LS4KDC Limited
4 · Use
Datacenter proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
Owners leasing their own space
| Name | In 199.176.76.0/24 | /24s |
|---|---|---|
| AT&T Services, Inc. | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
199.176.76.0/24
From the registry to its use
- Feb 17, 1994Registry recordAT&T Services, Inc.Direct Allocation (legacy, pre-1997)199.176.0.0/14
- Aug 29, 2005AssignedCingular Wireless II, LLCReassigned199.176.76.0/22
- Oct 3, 2025– today
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 199.176.64.0/18 since Oct 2025 | AS20057 | Mobile | 10 2 always on | AT&T Services, Inc. |
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 |
|---|---|---|---|---|---|---|
| 199.176.0.0/14 | 262,144 | AADSNET-CIDR | AT&T Services, Inc. (ATTSE-Z) · US | Direct Allocation | Feb 17, 1994 | abuse@ |
| └ 199.176.76.0/22 | 1,024 | CINGULAR-76-79 | Cingular Wireless II, LLC (CWIL-2) · US | Reassigned | Aug 29, 2005 | ew2497@ |
Network & registry
IPv4 market
Holder
- Organization
- AT&T Services, Inc.
- Handle
- ATTSE-Z
- Range
- 199.
176. 0. 0/ 14 - Registration type
- Direct Allocation
- Record created
- Feb 17, 1994
- Legacy
- yes
Origin network
AS214760
HK
- Name
- LS4KDC Limited
- Type
- Hosting
- Registered
- Jun 5, 2024
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- First seen
- Before our records
- Origin networks
- 0
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 199.176.76.0/24 | AS0 | /24 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 199.
176. 76. 0/ 22 - Netname
- CINGULAR-76-79
- Registrant
- Cingular Wireless II, LLC
- Organization
- Cingular Wireless II, LLC (CWIL-2)
- Org address
- 5655 Glenridge Connector, Atlanta, GA, 30342
- Org country
- US
- Type
- Reassigned
- Handle
- NET-199-176-76-0-1
- Parent
- NET-199-176-0-0-1
- Created
- Aug 29, 2005
- RIR
- ARIN
- Country
- US
- Delegated
- Feb 17, 1994
- Status
- assigned
Report abuse
Abuse contact
- ew2497@
att. com - Name
- Cingular DNS
- Phone
- +1-317-265-8902
- Handle
- CINGU-ARIN