subnet.im

AS63526Systems Solutions & development Technologies Limited

BangladeshRegistryAPNICTypeEyeball

As of 10th November 2026, AS63526 (Systems Solutions & development…), an access network registered in Bangladesh with APNIC, originates 48 IPv4 prefixes covering 12.3k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 9,540th-largest of the 80,723 networks we see originating IPv4, and the 41st-largest of 1,567 in Bangladesh. It is seen behind 3 upstream networks, most often AS139009 (Windstream Communication Limited) and AS149765 (Coronet Corporation Limited), and in front of 5 downstream networks. 88% of its announcements have 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

48

IPv6 prefixes

3

IPv4 addresses

12.3k

IPv6 /64s

197k

Upstream graph

The networks AS63526 is seen behind, one and two hops out, drawn from real AS paths.

AS63526Toward the internet core
Upstream graph for AS63526: 7 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS63526Systems Solutions…This networkAS17494Bangladesh Telegr…AS139009Windstream Commun…AS149765Coronet Corporati…AS2914NTT America, Inc.AS6939Hurricane Electri…AS9498Bharti Airtel Ltd.AS132602Bangladesh Submar…

Networks observed one and two hops upstream of AS63526 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

16

adjacent networks

Upstreams
319%
Peers
850%
Downstreams
531%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS63526
NetworkCountryRelationshipPathsVantage pts
AS139009Windstream Communication LimitedBDPeer3,398138
AS149765Coronet Corporation LimitedBDPeer988139
AS17494Bangladesh Telegraph & Telephone BoardBDPeer13275

Prefixes

All 51

The largest blocks AS63526 originates, widest first.

Largest prefixes originated by AS63526
PrefixAddressesVisibility
45.125.220.0/2425676/76
45.125.221.0/2425676/76
45.125.222.0/2425676/76
45.125.223.0/2425676/76
45.249.102.0/2425676/76
45.249.103.0/2425676/76
103.48.160.0/2425676/76
103.48.161.0/2425676/76
103.72.60.0/2425676/76
103.72.61.0/2425676/76

Routing health

How AS63526'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

  • Valid88.2%45
  • Invalid0.0%0
  • No ROA11.8%6

Propagation

  • Globally propagated90% of full-feed peers or more100.0%51
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 48 prefixes

IPv6 — 3 prefixes

  • /4865.5k × /64100.0%3

Recent changes

Announcements that started or stopped since 11th Oct 2026.

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