subnet.im

AS37271Workonline Communications(Pty) Ltd

South AfricaRegistryAFRINICTypeCarrier

As of 26th September 2026, AS37271 (Workonline Communications(Pty) Ltd), a transit carrier registered in South Africa with AFRINIC, originates 2 IPv4 prefixes covering 9.2k addresses and 1 IPv6 prefix. By IPv4 address space that makes it the 10,994th-largest of the 79,480 networks we see originating IPv4, and the 127th-largest of 653 in South Africa. It is seen behind 48 upstream networks, most often AS2914 (NTT America, Inc.) and AS3257 (GTT Communications Inc.), and in front of 298 downstream networks. Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

2

IPv6 prefixes

1

IPv4 addresses

9.2k

IPv6 /64s

4.3B

Upstream graph

The networks AS37271 is seen behind, one and two hops out, drawn from real AS paths.

AS37271Toward the internet core
Upstream graph for AS37271: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS37271Workonline Commun…This networkAS174Cogent Communicat…AS2914NTT America, Inc.AS3257GTT Communication…AS3356Lumen (Level 3)AS13030Init7 (Switzerlan…AS151326DCConnect Communi…AS3130RGnet OUAS49544i3D.net B.VAS1299Arelion (fka. Tel…AS6667Elisa OyjAS398465Rackdog LLCAS3549Lumen (fka. Globa…

Networks observed one and two hops upstream of AS37271 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

752

adjacent networks

Upstreams
486%
Peers
40654%
Downstreams
29840%

Networks carrying this one's traffic toward the rest of the internet. Listing the 40 seen on the most AS paths, of 48.

Upstreams of AS37271
NetworkCountryRelationshipPathsVantage pts
AS2914NTT America, Inc.USPeer15,26170
AS3257GTT Communications Inc.USPeer9,62644
AS3356Lumen (Level 3)USPeer7,60170
AS174Cogent Communications, LLCUSPeer6,92275
AS13030Init7 (Switzerland) Ltd.CHPeer2,5765
AS9002RETN LimitedGBPeer2,4454
AS14537Continent 8 LLCUSPeer1,9664
AS8888xTom Pty LtdAUPeer1,8392
AS7768Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERITRPeer1,8392
AS49544i3D.net B.VNLPeer1,7632

Prefixes

The largest blocks AS37271 originates, widest first.

Largest prefixes originated by AS37271
PrefixAddressesVisibility
197.157.64.0/198.2k81/81
41.78.188.0/221k81/81
2c0f:fa90::/324.3B × /6464/64

Routing health

How AS37271's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid100.0%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 1 prefixes

  • /324.3B × /64100.0%1

Recent changes

Announcements that started or stopped since 27th Aug 2026.

No announcement by AS37271 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.