Data as of Nov 15, 2026
41.74.203.0/24
No anonymizer space · no proxy exits in 30 daysMimecast North America Inc · space held by Mimecast South Africa
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Sep 18, 2026
from AS39588 Mimecast Services Limited, after 4.6 years unannounced
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 |
|---|---|---|---|---|---|---|
| 41.74.192.0/20 | 4,096 | MIMECAST | Mimecast South Africa (ORG-MSA1-AFRINIC) · ZA | ALLOCATED PA | — | abuse@ |
| └ 41.74.203.0/24 | 256 | MIMECAST-ANYCAST | Mimecast South Africa (ORG-MSA1-AFRINIC) · ZA | ASSIGNED ANYCAST | — | abuse@ via MIMECAST |
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
- Mimecast South Africa
- Handle
- ORG-MSA1-AFRINIC
- Range
- 41.
74. 192. 0/ 20 - Registration type
- ALLOCATED PA
Origin network
AS30031
US
- Name
- Mimecast North America Inc
- Type
- Business
- Registered
- Jul 7, 2017
- Domain
- mimecast.com
- Industry
- Software Development
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- Jul 2017
- Current origin since
- Sep 18, 2026 · 2 mo
- Origin networks
- 7
- Last change of origin
- Sep 18, 2026
Recorded history
History
- Handoffs
- 6
- Also announced by
- 37235;39588;42427;136792
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS14135 not the origin | RADB | NAVISITE-ANMA1-MIMECAST | MAINT-AS4544 | Nov 13, 2023 |
| AS17477 not the origin | RADB | Proxy route object registered by AS2764 | MAINT-AS2764 | Nov 13, 2023 |
| AS17819 not the origin | NTTCOM | Equinix | MAINT-EQUINIXPAC | Jul 5, 2017 |
| AS30031 | RADB | Mimecast NA | MAINT-AS42427 | Nov 13, 2023 |
| AS33538 not the origin | RADB | Mimecast | MAINT-AS42427 | Nov 13, 2023 |
| AS37235 not the origin | AFRINIC | MIMECAST-ANYCAST | MIMECAST-MNT | Jun 30, 2017 |
| AS39588 not the origin | RADB | Mimecast | MAINT-AS42427 | Nov 13, 2023 |
| AS42427 not the origin | RADB | Mimecast | MAINT-AS42427 | Nov 13, 2023 |
| AS64911 not the origin | NTTCOM | Mimecast Australia | MAINT-EQUINIXPAC | Jul 5, 2017 |
| AS136792 not the origin | NTTCOM | MIMECAST | MAINT-EQUINIXPAC | Jul 10, 2017 |
Whois
Registration for this announcement
- Range
- 41.
74. 203. 0/ 24 - Netname
- MIMECAST-ANYCAST
- Registrant
- Mimecast South Africa
- Registrant country
- US
- Organization
- Mimecast South Africa (ORG-MSA1-AFRINIC)
- Org country
- ZA
- Type
- ASSIGNED ANYCAST
- Parent
- 41.
74. 192. 0 - 41. 74. 207. 255 - Created
- Not stated by the registry
- Maintainer
- MIMECAST-MNT
- RIR
- AFRINIC
- Country
- ZA
- Delegated
- Jul 9, 2010
- Status
- assigned
Report abuse
Abuse contact
- abuse@
mimecast. com - Name
- IRT-MIMECAST-ABUSE
- Handle
- IRT-MIMECAST-ABUSE