asn.dev

Autonomous system

AS37035 MIC-AS

Unclassified RIPE

IPv4 addresses 154K 69 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly TZ
Exchanges 4 recorded by PCH
Upstreams 11 22 downstream
Flagged prefixes 0 none

Summary

Yas Tanzania

Tanzania, United Republic of · AI-generated

mobile telecom africa

MIC-AS is operated by Yas Tanzania (formerly Tigo Tanzania and MIC Tanzania Ltd).

What it's used for

  • The address space carries mobile subscriber traffic, evidenced by the registrant MIC TANZANIA LTD and netname ORG-MTL6-AFRINIC on prefixes such as 197.221.192.0/19 and 41.204.136.0/21.
  • The AS announces 153856 IPv4 addresses across 69 prefixes and maintains 49 observed neighbours, a ratio consistent with a major mobile access network providing connectivity to end-users.

Notable

  • Registrants for the largest prefixes are listed as unknown in the RDAP sample, while smaller prefixes explicitly list MIC TANZANIA LTD as the registrant.
  • The operator was formerly known as MIC Tanzania Ltd and Tigo Tanzania; it rebranded to Yas in late 2024 under its parent company Axian Telecom.
  • The inventory is dominated by the 154.74.0.0/16 and 154.75.0.0/16 blocks, with additional space in the 41.204.0.0/16 range.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 4 exchanges in 2 countries, largest first.

ExchangeLocationTheir address
NAPAfrica IX JohannesburgJohannesburg, South Africa196.60.8.38
TIX Tanzania - Dar es SalaamDar es Salaam, Tanzania196.223.5.43
Arusha Internet eXchange PointArusha, Tanzania196.223.6.33
Dodoma Internet Exchange PointDodoma, Tanzania196.60.50.28

Transit providers

11 upstream, 22 downstream and 48 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS30990DJIBOUTI TELECOM S.A.2,503
AS37662West Indian Ocean Cable Company2,170
AS174Cogent Communications, LLC1,133
AS6762TELECOM ITALIA SPARKLE S.p.A.300
AS6939Hurricane Electric LLC205
AS37721Virtual Technologies & Solutions38
AS328977Wavex Internet Service Provider LTD34
AS5511Orange S.A.28

All 11 upstreams →

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 69 prefixes · 154K addresses IPv6 1 prefixes

CountryNamePrefixes
TZTanzania, United Republic of70

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS37035
Registry name
ORG-MTL6-AFRINIC
Registrant
MIC TANZANIA LTD
Registered
2008-08-01
Last changed
2023-12-21
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 107 valid, 0 with no ROA
ROAs
7 authorising AS37035
ASPA
no ASPA record
IRR
100% registered · 107 of 107 announcements
Route objects
128 naming AS37035

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check