Data as of Nov 3, 2026
74.203.183.0/24
No anonymizer space · no proxy exits in 30 daysRibbon Communications Operating Company, Inc. · space held by Level 3 Parent, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 74.202.0.0/15 since Oct 2016 | AS3549 | Internet provider | 22 | Level 3 Parent, 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 |
|---|---|---|---|---|---|---|
| 74.202.0.0/15 | 131,072 | TWTC-NETBLK-9 | Level 3 Parent, LLC (LPL-141) · US | Direct Allocation | Nov 14, 2006 | [email protected] |
| └ 74.203.183.0/24 | 256 | 74-203-183-0-24 | Ribbon Communications Operating Company, Inc. (RCO-22) · US | Reassigned | Jan 13, 2022 | — |
Network & registry
Registry
Holder
- Organization
- Level 3 Parent, LLC
- Handle
- LPL-141
- Range
- 74.202.0.0/15
- Registration type
- Direct Allocation
- Record created
- Nov 14, 2006
Origin network
AS5777
US
- Name
- Ribbon Communications Operating Company, Inc.
- Type
- Business
- Registered
- Oct 5, 2009
- Domain
- sonus.net
- 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
- Apr 2014
- Current origin since
- Apr 2014 · 13 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 74.203.183.0/24
- Netname
- 74-203-183-0-24
- Registrant
- Ribbon Communications Operating Company, Inc.
- Organization
- Ribbon Communications Operating Company, Inc. (RCO-22)
- Org address
- 4 Technology Park Drive, Westford, MA, 01886
- Org country
- US
- Type
- Reassigned
- Handle
- NET-74-203-183-0-1
- Parent
- NET-74-202-0-0-1
- Created
- Jan 13, 2022
- RIR
- ARIN
- Country
- US
- Delegated
- Nov 14, 2006
- Status
- assigned
Report abuse
Abuse contact
- [email protected]
- Name
- L3 Abuse Contact
- Phone
- +1-877-453-8353
- Handle
- LAC56-ARIN