Data as of Nov 9, 2026
209.249.55.0/24
No anonymizer space · no proxy exits in 30 daysMajor League Baseball Advanced Media, LP · space held by Zayo Bandwidth
Announcement
this exact prefix
RPKI valid
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Jul 2026
its first announcement on record
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 209.249.0.0/16 since May 2005 | AS6461 | Internet provider | 147 7 always on | Zayo Bandwidth |
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 |
|---|---|---|---|---|---|---|
| 209.249.0.0/16 | 65,536 | ABOVENET-4 | Zayo Bandwidth (ZAYOB) · US | Direct Allocation | Jun 15, 1998 | abuse@ |
| └ 209.249.55.0/24 | 256 | ZAYO-209-249-55-0-24 | MLB Advanced Media LP (C11654379) · US | Reassigned | Jul 20, 2026 | abuse@ via ABOVENET-4 |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Network & registry
Registry
Holder
- Organization
- Zayo Bandwidth
- Handle
- ZAYOB
- Range
- 209.
249. 0. 0/ 16 - Registration type
- Direct Allocation
- Record created
- Jun 15, 1998
Origin network
AS30219
US
- Name
- Major League Baseball Advanced Media, LP
- Type
- Business
- Registered
- Nov 3, 2017
- Domain
- mlb.com
- Website
- www.mlb.com
- Industry
- Online Music and Video Streaming Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Jul 2026
- Current origin since
- Jul 2026 · 3 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 209.249.55.0/24 | AS30219 | /24 | ARIN | RPKI valid |
| 209.249.0.0/16 | AS6461 | /16 | ARIN | Another network |
Whois
Registration for this announcement
- Range
- 209.
249. 55. 0/ 24 - Netname
- ZAYO-209-249-55-0-24
- Registrant
- MLB Advanced Media LP
- Organization
- MLB Advanced Media LP (C11654379)
- Type
- Reassigned
- Handle
- NET-209-249-55-0-1
- Parent
- NET-209-249-0-0-1
- Created
- Jul 20, 2026
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 15, 1998
- Status
- assigned
Report abuse
Abuse contact
- abuse@
zayo. com - Name
- Abuse
- Phone
- +1-866-236-2824
- Handle
- ABUSE5675-ARIN