Autonomous System

AS16637

MTN SA

MTN SA South Africa 🌐 mtn.com

Announced IPs

2,577,664

CIDR prefixes

106

ASN

AS16637

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

55/100

Caution

How this score is built

Baseline (neutral) 65
Multiple-origin (MOAS) routing anomaly −12
Mobile allocation +2
Trust score 55 / 100

Experimental · trust-vectors model v1.1.0 — a transparent heuristic, not a definitive verdict. How it works →

⚠ 1 MOAS prefix — multiple origin ASNs detected

All MOAS anomalies →

A previously stable prefix originated by AS16637 is now also announced by another ASN (MOAS — Multiple-Origin AS), detected from our RIPE RIS collectors. Often benign (anycast, multi-homing, or a recent transfer) — but it can signal a route leak or prefix hijack, so it's worth inspecting.

Prefix	Origin ASNs	Last detected (UTC)
155.235.64.0/19	AS16637, AS398993	2026-07-18 11:22:44

Network profile

Source: PeeringDB →

Network type NSP

Traffic level 1-5Tbps

Geographic scope Global

Peering policy Open

IRR record AS-MTN-TRANSIT

Present at 13 internet exchanges: LINX LON2, LINX LON1: Main, CINX: CINX Peering, JINX: JINX Peering, AMS-IX, NAPAfrica IX Johannesburg: Peering, DE-CIX Lisbon: DE-CIX Lisbon Peering LAN, NAPAfrica IX Cape Town, NAPAfrica IX Durban, KIXP - Nairobi: Peering LAN, …

Website ↗

AS16637 — global IP footprint

Cities where AS16637 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

View on 3D globe →

Top CIDR ranges

CIDR	IPs	PTR Density	Organization	Country	State	City
105.216.0.0/13	524.3K	12.5%	MTN Business Solutions	ZA	KwaZulu-Natal	Durban
105.212.0.0/14	262.1K	50.0%	MTN Business Solutions	ZA	Gauteng	Johannesburg
197.72.0.0/14	262.1K	0.0%	MTN Business Solutions	ZA	KwaZulu-Natal	Durban
105.210.0.0/15	131.1K	100.0%	MTN Business Solutions	ZA	—	—
105.236.0.0/15	131.1K	100.0%	MTN Business Solutions	ZA	Gauteng	Johannesburg
197.76.0.0/15	131.1K	0.0%	MTN Business Solutions	ZA	Gauteng	Johannesburg
41.118.0.0/16	65.5K	0.0%	MTN Business Solutions	ZA	—	—
41.125.0.0/16	65.5K	0.0%	MTN Business Solutions	ZA	—	—
41.126.0.0/16	65.5K	0.0%	MTN Business Solutions	ZA	—	—
41.181.0.0/16	65.5K	2.0%	MTN Business Solutions	ZA	Gauteng	Johannesburg
41.195.0.0/16	65.5K	62.5%	MTN Business Solutions	ZA	—	—
105.208.0.0/16	65.5K	100.0%	MTN Business Solutions	ZA	Eastern Cape	Port Elizabeth
196.7.0.0/16	65.5K	0.0%	—	ZA	—	—
196.30.0.0/16	65.5K	2.8%	MTN Business Solutions	ZA	Gauteng	Centurion
197.67.0.0/16	65.5K	0.0%	MTN Business Solutions	ZA	—	—
197.71.0.0/16	65.5K	0.0%	MTN Business Solutions	ZA	Western Cape	Cape Town
41.125.128.0/17	32.8K	0.0%	MTN SA	ZA	—	—
41.126.128.0/17	32.8K	0.0%	MTN SA	ZA	—	—
41.127.0.0/17	32.8K	0.0%	MTN Business Solutions	ZA	—	—
196.7.128.0/17	32.8K	4.1%	MTN Business Solutions	ZA	—	—
196.30.128.0/17	32.8K	0.0%	—	ZA	Gauteng	Midrand
196.31.128.0/17	32.8K	3.0%	MTN Business Solutions	ZA	Gauteng	Johannesburg
197.70.128.0/17	32.8K	0.0%	MTN Business Solutions	ZA	Gauteng	Johannesburg
197.78.0.0/17	32.8K	0.0%	MTN Business Solutions	ZA	—	—
197.79.128.0/17	32.8K	0.0%	MTN Business Solutions	ZA	—	—
41.120.64.0/18	16.4K	0.0%	MTN Business Solutions	ZA	—	—
41.125.0.0/18	16.4K	0.0%	MTN SA	ZA	—	—
41.125.192.0/18	16.4K	0.0%	MTN SA	ZA	—	—
41.126.64.0/18	16.4K	0.0%	MTN SA	ZA	—	—
41.126.128.0/18	16.4K	0.0%	MTN SA	ZA	—	—
41.127.128.0/18	16.4K	0.0%	MTN Business Solutions	ZA	—	—
41.181.0.0/18	16.4K	0.0%	—	ZA	Gauteng	Johannesburg
41.208.0.0/18	16.4K	99.5%	MTN Business Solutions	ZA	Gauteng	Johannesburg
66.8.64.0/18	16.4K	1.5%	MTN Business Solutions	ZA	—	—
105.209.0.0/18	16.4K	100.0%	MTN Business Solutions	ZA	Gauteng	Johannesburg
105.209.128.0/18	16.4K	100.0%	MTN Business Solutions	ZA	Western Cape	Cape Town
155.235.64.0/18	16.4K	0.0%	MTN Business Solutions	ZA	—	—
196.7.0.0/18	16.4K	5.1%	MTN Business Solutions	ZA	—	—
196.22.64.0/18	16.4K	0.6%	MTN Business Solutions	ZA	—	—
196.30.64.0/18	16.4K	0.0%	—	ZA	Gauteng	Alberton
196.31.64.0/18	16.4K	3.5%	MTN Business Solutions	ZA	Free State	Bultfontein
196.47.0.0/18	16.4K	92.6%	MTN Business Solutions	ZA	—	—
41.112.96.0/19	8.2K	0.0%	MTN Business Solutions	ZA	—	—
41.112.192.0/19	8.2K	0.0%	MTN Business Solutions	ZA	—	—
41.120.32.0/19	8.2K	0.0%	MTN Business Solutions	ZA	—	—
41.127.192.0/19	8.2K	0.0%	MTN Business Solutions	ZA	—	—
41.181.128.0/19	8.2K	0.0%	—	ZA	KwaZulu-Natal	Durban
66.8.32.0/19	8.2K	5.6%	MTN Business Solutions	ZA	—	—
105.209.96.0/19	8.2K	100.0%	MTN Business Solutions	ZA	Gauteng	Johannesburg
105.209.192.0/19	8.2K	100.0%	MTN Business Solutions	ZA	—	—
196.30.32.0/19	8.2K	0.0%	—	ZA	Western Cape	Cape Town
196.31.0.0/19	8.2K	4.2%	MTN Business Solutions	ZA	Gauteng	Edenvale
196.41.160.0/19	8.2K	84.4%	MTN Business Solutions	ZA	—	—
196.44.0.0/19	8.2K	25.1%	MTN Business Solutions	ZA	—	—
209.212.96.0/19	8.2K	26.7%	MTN Business Solutions	ZA	—	—
41.112.48.0/20	4.1K	0.0%	MTN Business Solutions	ZA	—	—
41.112.128.0/20	4.1K	0.0%	MTN Business Solutions	ZA	—	—
41.112.176.0/20	4.1K	0.0%	MTN Business Solutions	ZA	—	—
41.127.224.0/20	4.1K	0.0%	MTN Business Solutions	ZA	—	—
41.181.80.0/20	4.1K	0.0%	—	ZA	—	—
41.181.112.0/20	4.1K	0.0%	—	ZA	Gauteng	Johannesburg
41.181.208.0/20	4.1K	0.0%	—	ZA	—	—
41.181.224.0/20	4.1K	0.0%	—	ZA	—	—
41.208.0.0/20	4.1K	0.0%	—	ZA	—	—
41.208.48.0/20	4.1K	0.0%	—	ZA	Gauteng	Johannesburg
66.8.16.0/20	4.1K	3.0%	MTN Business Solutions	ZA	—	—
105.209.224.0/20	4.1K	100.0%	MTN Business Solutions	ZA	Gauteng	Kempton Park
196.7.64.0/20	4.1K	2.0%	MTN Business Solutions	ZA	—	—
196.7.96.0/20	4.1K	1.2%	MTN Business Solutions	ZA	—	—
196.30.0.0/20	4.1K	0.0%	—	ZA	KwaZulu-Natal	Durban
196.31.32.0/20	4.1K	0.7%	MTN Business Solutions	ZA	—	—
209.212.112.0/20	4.1K	0.0%	—	ZA	—	—
213.193.48.0/20	4.1K	0.3%	MTN Business Solutions	ZA	—	—
41.127.240.0/21	2.0K	0.0%	MTN Business Solutions	ZA	—	—
41.181.64.0/21	2.0K	0.0%	—	ZA	—	—
41.181.96.0/21	2.0K	0.0%	—	ZA	—	—
41.181.160.0/21	2.0K	0.0%	—	ZA	—	—
41.181.176.0/21	2.0K	0.0%	—	ZA	—	—
41.181.248.0/21	2.0K	0.0%	—	ZA	—	—
41.208.16.0/21	2.0K	0.0%	—	ZA	—	—
41.208.32.0/21	2.0K	0.0%	—	ZA	—	—
105.209.240.0/21	2.0K	100.0%	MTN Business Solutions	ZA	—	—
155.235.232.0/21	2.0K	0.0%	MTN Business Solutions	ZA	—	—
196.7.80.0/21	2.0K	2.4%	MTN Business Solutions	ZA	—	—
196.7.112.0/21	2.0K	0.8%	MTN Business Solutions	ZA	—	—
196.30.16.0/21	2.0K	0.0%	—	ZA	—	—
196.31.48.0/21	2.0K	2.3%	MTN Business Solutions	ZA	—	—
196.61.208.0/21	2.0K	0.3%	MTN Business Solutions	BW	—	—
209.212.96.0/21	2.0K	0.0%	—	ZA	—	—
213.193.40.0/21	2.0K	10.5%	MTN Business Solutions	ZA	—	—
41.127.248.0/22	1.0K	0.0%	MTN Business Solutions	ZA	—	—
41.181.72.0/22	1.0K	0.0%	—	ZA	—	—
41.181.108.0/22	1.0K	0.0%	—	ZA	—	—
41.181.172.0/22	1.0K	0.0%	—	ZA	—	—
41.181.184.0/22	1.0K	0.0%	—	ZA	—	—
41.181.192.0/22	1.0K	0.0%	—	ZA	—	—
41.181.204.0/22	1.0K	0.0%	—	ZA	—	—
41.181.240.0/22	1.0K	0.0%	—	ZA	—	—
41.208.40.0/22	1.0K	0.0%	—	ZA	—	—
66.8.12.0/22	1.0K	9.1%	MTN Business Solutions	ZA	KwaZulu-Natal	Pietermaritzburg

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS16637 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

Prefix	Announcement samples	Last seen
105.216.96.0/24	120,015	2026-07-18 10:52:02
105.209.244.0/24	119,908	2026-07-18 10:52:02
105.209.232.0/24	119,842	2026-07-18 10:52:02
105.216.248.0/24	118,653	2026-07-18 10:52:02
105.216.97.0/24	118,494	2026-07-18 10:52:02
105.209.236.0/24	118,436	2026-07-18 10:52:02
105.209.233.0/24	118,311	2026-07-18 10:52:02
105.209.189.0/24	118,285	2026-07-18 10:52:02
105.209.188.0/24	118,250	2026-07-18 10:52:02
105.216.249.0/24	113,567	2026-07-18 10:52:02
105.216.250.0/24	113,518	2026-07-18 10:52:02
105.216.98.0/24	113,493	2026-07-18 10:52:02
105.216.99.0/24	113,486	2026-07-18 10:52:02
105.216.251.0/24	113,479	2026-07-18 10:52:02
105.209.239.0/24	113,460	2026-07-18 10:52:02
105.209.237.0/24	113,423	2026-07-18 10:52:02
105.209.235.0/24	113,416	2026-07-18 10:52:02
105.209.234.0/24	113,392	2026-07-18 10:52:02
105.209.238.0/24	113,387	2026-07-18 10:52:02
105.209.191.0/24	113,340	2026-07-18 10:52:02
105.209.190.0/24	113,330	2026-07-18 10:52:02
105.212.100.0/22	112,042	2026-07-18 10:52:02
105.177.12.0/24	77,954	2026-07-18 10:51:58
105.208.40.0/21	69,093	2026-07-18 10:52:00
105.209.128.0/19	68,840	2026-07-18 10:52:00
105.208.240.0/20	68,818	2026-07-18 10:52:00
105.212.48.0/20	68,584	2026-07-18 10:52:00
105.213.128.0/18	68,583	2026-07-18 10:52:00
105.216.104.0/21	68,422	2026-07-18 10:52:00
105.216.128.0/21	68,401	2026-07-18 10:52:00
105.212.88.0/21	68,382	2026-07-18 10:52:00
105.209.33.0/24	68,361	2026-07-18 10:52:00
105.213.96.0/19	68,355	2026-07-18 10:52:00
105.209.112.0/21	68,335	2026-07-18 10:52:00
105.213.64.0/19	68,314	2026-07-18 10:52:00
105.214.0.0/18	68,239	2026-07-18 10:52:00
105.214.64.0/18	68,223	2026-07-18 10:52:00
105.212.80.0/21	68,220	2026-07-18 10:52:00
105.212.72.0/21	68,208	2026-07-18 10:52:00
105.209.166.0/24	68,187	2026-07-18 10:52:00
105.216.144.0/21	68,082	2026-07-18 10:52:00
105.216.192.0/21	67,903	2026-07-18 10:52:00
105.209.168.0/22	67,801	2026-07-18 10:52:00
105.209.253.0/24	67,592	2026-07-18 10:52:00
105.209.108.0/22	67,516	2026-07-18 10:52:00
105.209.40.0/22	67,502	2026-07-18 10:52:00
105.216.0.0/19	67,437	2026-07-18 10:52:00
105.216.72.0/22	67,417	2026-07-18 10:52:00
105.177.33.0/24	67,359	2026-07-18 10:36:30
105.209.186.0/23	67,260	2026-07-18 10:52:00

Showing top 50 of 214 announced prefixes by sample volume.

Frequently Asked Questions

What is AS16637?

AS16637 is an Autonomous System Number assigned to MTN SA. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS16637 announce?

AS16637 announces 2.58M IPv4 addresses distributed across 106 routed CIDR prefixes. The network is registered in South Africa.

Who operates AS16637?

AS16637 is operated by MTN SA. The organization is based in South Africa. You can view all IP ranges and related ASNs on the organization page.

What country is AS16637 registered in?

AS16637 is registered in South Africa. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-18 11:25:31 UTC