Data as of Nov 7, 2026
164.74.129.0/24
No anonymizer space · no proxy exits in 30 daysZayo Bandwidth · space held by Chicago Mercantile Exchange
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low
Recent change
New origin Aug 2026
from AS17025 Zayo Bandwidth
Network & registry
Origin network
AS17025
US
- Name
- Zayo Bandwidth
- Type
- Internet provider
- Registered
- Jul 14, 2000
- Domain
- zayo.com
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
latest 12 of 15 stints
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2009
- Current origin since
- Aug 2026 · 2 mo
- Origin networks
- 5
- Last change of origin
- Apr 2026
Recorded history
History
- Stints on record
- 15
- Handoffs
- 10
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS11074 not the origin | RADB | CME Group | MAINT-AS27506 | Nov 13, 2023 |
| AS11704 not the origin | RADB | CME | MAINT-AS27506 | Nov 13, 2023 |
| AS17025 | RADB | Akamai Technologies, Inc. | MAINT-AS32787 | Nov 13, 2023 |
| AS32787 not the origin | RADB | Akamai Technologies, Inc. | MAINT-AS32787 | Nov 13, 2023 |
| AS46887 not the origin | RADB | CME Group | MAINT-AS27506 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 164.
74. 0. 0/ 16 - Netname
- CBOTNET
- Registrant
- Chicago Mercantile Exchange
- Organization
- Chicago Mercantile Exchange (CME)
- Org address
- 20. South Wacker, Chicago, IL, 60606
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-164-74-0-0-1
- Parent
- NET-164-0-0-0-0
- Created
- Dec 18, 1992
- RIR
- ARIN
- Country
- US
- Delegated
- Dec 18, 1992
- Status
- assigned
Report abuse
Abuse contact
- NetworkEngineering@
cmegroup. com - Name
- CME-ARIN-Admin
- Phone
- +1-312-627-4496
- Handle
- CMEAR-ARIN