Data as of Nov 7, 2026
197.221.192.0/21
No anonymizer space · no proxy exits in 30 daysMIC Tanzania Ltd
Announcement
this exact prefix
RPKI valid
Announced by
Type
Mobile
Risk
30 / 100 · Medium
Recently moved · Shared address
Recent change
New origin Sep 2026
from AS36930 MIC Tanzania Ltd, after 10.2 years unannounced
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 197.221.192.0/19 since May 2024 | AS37035 | Mobile | MIC Tanzania Ltd |
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 |
|---|---|---|---|---|---|---|
| 197.221.192.0/19 | 8,192 | MIC-TANZANIA-LTD | MIC Tanzania Ltd (ORG-MTL6-AFRINIC) · TZ | ALLOCATED PA | — | — |
| └ 197.221.192.0/21 | 2,048 | Zantel-Net | MIC Tanzania Ltd (ORG-MTL6-AFRINIC) · TZ | ASSIGNED PA | — | — |
Network & registry
Registry
Holder
- Organization
- MIC Tanzania Ltd
- Handle
- ORG-MTL6-AFRINIC
- Range
- 197.
221. 192. 0/ 19 - Registration type
- ALLOCATED PA
Origin network
AS37035
TZ
- Name
- MIC Tanzania Ltd
- Type
- Internet provider
- Registered
- Aug 1, 2008
- Domain
- tigo.co.tz
- Website
- www.yas.co.tz
- 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
- Reactivated
- First seen
- Aug 2012
- Current origin since
- Sep 2026 · 2 mo
- Origin networks
- 2
- Last change of origin
- Sep 2026
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 197.221.192.0/19 | AS36930 | /24 | AFRINIC | Another network |
| 197.221.192.0/19 | AS37035 | /24 | AFRINIC | RPKI valid |
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 197.221.192.0/22 | AS36930 | AFRINIC | MIC TANZANIA LTD | TIGO-TZ-MNT | Jan 13, 2023 |
| 197.221.196.0/22 | AS36930 | AFRINIC | MIC TANZANIA LTD | TIGO-TZ-MNT | Jan 13, 2023 |
Whois
Registration for this announcement
- Range
- 197.
221. 192. 0/ 21 - Netname
- Zantel-Net
- Registrant
- MIC Tanzania Ltd
- Organization
- MIC Tanzania Ltd (ORG-MTL6-AFRINIC)
- Org country
- TZ
- Type
- ASSIGNED PA
- Parent
- 197.
221. 192. 0 - 197. 221. 223. 255 - Created
- Not stated by the registry
- Maintainer
- TIGO-TZ-MNT
- RIR
- AFRINIC
- Country
- TZ
- Delegated
- Jul 14, 2011
- Status
- assigned