Data as of Nov 6, 2026
209.249.173.0/24
No anonymizer space · no proxy exits in 30 daysNational Geographic Society · space held by Zayo Bandwidth
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 209.249.0.0/16 since May 2005 | AS6461 | Internet provider | 141 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@ |
| └ 209.249.172.0/23 | 512 | ZAYO-IPYX-076985-209-249-172-0-23 | Proofpoint, Inc. (PROOF) · US | Reassigned | Mar 29, 2016 | abuse@ |
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
AS22392
US
- Name
- National Geographic Society
- Type
- Business
- Registered
- Aug 26, 2025
- Domain
- nationalgeographic.com
- Industry
- Human Rights and Social Advocacy (Human Rights, Environment and Wildlife Conservation, Other)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2026
- Current origin since
- Mar 2026 · 8 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 209.249.173.0/24 | AS22392 | /24 | ARIN | RPKI valid |
| 209.249.0.0/16 | AS6461 | /16 | ARIN | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS30627 not the origin | ARIN | Proofpoint Inc. | MNT-PROOF | Mar 30, 2016 |
Whois
Registration for this announcement
- Range
- 209.
249. 172. 0/ 23 - Netname
- ZAYO-IPYX-076985-209-249-172-0-23
- Registrant
- Proofpoint, Inc.
- Organization
- Proofpoint, Inc. (PROOF)
- Org address
- 925 W Maude Ave, Sunnyvale, CA, 94085
- Org country
- US
- Type
- Reassigned
- Handle
- NET-209-249-172-0-1
- Parent
- NET-209-249-0-0-1
- Created
- Mar 29, 2016
- RIR
- ARIN
- Country
- US
- Delegated
- Jun 15, 1998
- Status
- assigned
Report abuse
Abuse contact
- abuse@
proofpoint. com - Name
- Proofpoint ARIN Abuse
- Phone
- +1-801-748-4494
- Handle
- PAA19-ARIN