Data as of Nov 5, 2026
199.77.50.0/23
No anonymizer space · no proxy exits in 30 daysLevel 3 Parent, LLC
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 199.77.0.0/18 since Mar 2016 | AS3549 | Internet provider | Level 3 Parent, LLC | ||
| 199.76.0.0/15 since May 2005 | AS3356 | Internet provider | 19 | 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 |
|---|---|---|---|---|---|---|
| 199. | 262,144 | LVLT-ORG-199-75 | Level 3 Parent, LLC (LPL-141) · US | Direct Allocation | Jan 1, 1994 | abuse@ |
| └ 199.77.50.0/23 | 512 | MSM-50 | Morehouse School of Medicine (MSM-2) · US | Reassigned | May 8, 1996 | mdean@ |
Network & registry
IPv4 market
Holder
- Organization
- Level 3 Parent, LLC
- Handle
- LPL-141
- Range
- 199.
75. 0. 0 - 199. 78. 255. 255 - Registration type
- Direct Allocation
- Record created
- Jan 1, 1994
- Legacy
- yes
Origin network
AS3549
US
- Name
- Level 3 Parent, LLC
- Type
- Internet provider
- Registered
- Mar 21, 2000
- Domain
- lumen.com
- Website
- www.lumen.com/
- 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
- Sep 2017
- Current origin since
- Sep 2017 · 9.1 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 199.
77. 50. 0/ 23 - Netname
- MSM-50
- Registrant
- Morehouse School of Medicine
- Organization
- Morehouse School of Medicine (MSM-2)
- Org address
- 720 Westview Drive, Atlanta, GA, 30310
- Org country
- US
- Type
- Reassigned
- Handle
- NET-199-77-50-0-1
- Parent
- NET-199-75-0-0-1
- Created
- May 8, 1996
- RIR
- ARIN
- Country
- US
- Delegated
- Jan 1, 1994
- Status
- assigned
Report abuse
Abuse contact
- mdean@
msm. edu - Name
- Dean, Mark
- Phone
- +1-678-458-2983
- Handle
- DEANM20-ARIN