Data as of Nov 7, 2026
199.105.120.0/21
No anonymizer space · no proxy exits in 30 daysDownCity LLC · reallocated from AT&T Enterprises, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 199.105.0.0/16 since May 2005 | AS7018 | Residential | 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 |
|---|---|---|---|---|---|---|
| 199. | 262,144 | NETBLK-CERFNET-CBLK2 | AT&T Enterprises, LLC (AEL-360) · US | Direct Allocation | Jan 10, 1994 | abuse@ |
| └ 199.105.120.0/21 | 2,048 | CERF-DOWNCITY-A | DownCity LLC (DCTY) · US | Reallocated | Oct 12, 1998 | — |
Network & registry
IPv4 market
Holder
- Organization
- AT&T Enterprises, LLC
- Handle
- AEL-360
- Range
- 199.
105. 0. 0 - 199. 108. 255. 255 - Registration type
- Direct Allocation
- Record created
- Jan 10, 1994
- Legacy
- yes
- Reallocated to
- DownCity LLC (DCTY)
- Reallocated range
- 199.
105. 120. 0/ 21 - Reallocated
- Oct 12, 1998
Origin network
AS10868
US
- Name
- DownCity LLC
- Type
- Internet provider
- Registered
- Dec 15, 1997
- Domain
- downcity.net
- Industry
- Internet Service Provider (ISP)
- 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
- Nov 2012 · 14 yr
- Origin networks
- 2
- Last change of origin
- Nov 2012
Recorded history
History
- Handoffs
- 1
Whois
Registration for this announcement
- Range
- 199.
105. 120. 0/ 21 - Netname
- CERF-DOWNCITY-A
- Registrant
- DownCity LLC
- Organization
- DownCity LLC (DCTY)
- Org address
- 131 Broadway, Norwich, CT, 06360-4405
- Org country
- US
- Type
- Reallocated
- Handle
- NET-199-105-120-0-1
- Parent
- NET-199-105-0-0-1
- Created
- Oct 12, 1998
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 10, 1994
- Status
- assigned
Report abuse
Abuse contact
- abuse@
att. net - Name
- abuse
- Phone
- +1-919-319-8167
- Handle
- ABUSE7-ARIN