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AS37303

AS37303 is Airtel Madagascar.

Last updated 3 Nov 2026 from DB-IP ASN Lite (2026-11-01) and RIR statistics (3 Nov 2026)

Short answer

AS37303 belongs to Airtel Madagascar. DB-IP Lite attributes 18,176 IPv4 addresses in 3 ranges and no IPv6 ranges to it, all or nearly all of the IPv4 space in Madagascar. The number is registered with AFRINIC in Madagascar on 16 Mar 2011.

Facts for AS37303
Operator (DB-IP)Airtel Madagascar
IPv4 addresses18,176
IPv4 ranges3
IPv6 ranges0
RegistryAFRINIC
Registered16 Mar 2011
Registry countryMadagascar (MG)

Does it publish a geofeed?

We haven’t checked this network’s registry records for a geofeed yet. The Truth Check looks for one live for any address you test.

Shared addresses (CGNAT)

Airtel Madagascar hasn’t been documented as using carrier-grade NAT in a source we could check. To see whether your own connection is behind it, compare your router’s address on the CGNAT check.

IPv6

DB-IP lists no IPv6 ranges for AS37303, so its customers reach websites over IPv4.

Where its IPv4 space is used, according to DB-IP

MG100%

Share of the network’s IPv4 addresses by DB-IP Country Lite. IP Geolocation by DB-IP.

IP ranges

RangeAs CIDRAddresses
41.77.16.0 – 41.77.23.25541.77.16.0/212,048
197.148.128.0 – 197.148.139.255197.148.128.0/21, 197.148.136.0/223,072
197.148.141.0 – 197.148.191.255197.148.141.0/24, 197.148.142.0/23 …13,056
Showing 3 of 3 IPv4 and 0 of 0 IPv6 ranges All ranges (CSV)

IP Geolocation by DB-IP, ASN Lite, CC BY 4.0.

Using an address from this network? See which sources agree on where it is.

Sources

  1. DB-IP IP to ASN Lite (CC BY 4.0) · checked 3 Nov 2026
  2. NRO RIR delegated-extended statistics · checked 4 Nov 2026