subnet.im

AS59257Zong (CMPak Limited)

PakistanRegistryAPNICTypeEyeball

As of 25th October 2026, AS59257 (Zong (CMPak Limited)), an access network registered in Pakistan with APNIC, originates 200 IPv4 prefixes covering 143k addresses and 253 IPv6 prefixes. By IPv4 address space that makes it the 1,715th-largest of the 79,683 networks we see originating IPv4, and the 6th-largest of 306 in Pakistan. It is seen behind 3 upstream networks, most often AS17557 (Pakistan Telecommunication Company…) and AS38193 (Transworld Associates (Pvt.) Ltd.), and in front of 1 downstream network. Over 99% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. Over 99% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

200

IPv6 prefixes

253

IPv4 addresses

143k

IPv6 /64s

35.3M

Upstream graph

The networks AS59257 is seen behind, one and two hops out, drawn from real AS paths.

AS59257Toward the internet core
Upstream graph for AS59257: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS59257Zong (CMPak Limit…This networkAS17557Pakistan Telecomm…AS38193Transworld Associ…AS58453China Mobile Inte…AS3491PCCW Global (HK) …AS6939Hurricane Electri…AS174Cogent Communicat…AS6762Telecom Italia Sp…AS3356Lumen (Level 3)AS6453TATA Communicatio…

Networks observed one and two hops upstream of AS59257 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

8

adjacent networks

Upstreams
338%
Peers
450%
Downstreams
113%

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

Upstreams of AS59257
NetworkCountryRelationshipPathsVantage pts
AS17557Pakistan Telecommunication Company LimitedPKPeer21,814139
AS38193Transworld Associates (Pvt.) Ltd.PKPeer7,473139
AS58453China Mobile InternationalHKPeer1,67276

Prefixes

All 453

The largest blocks AS59257 originates, widest first.

Largest prefixes originated by AS59257
PrefixAddressesVisibility
223.123.0.0/1732.8k76/76
223.123.0.0/198.2k76/76
111.119.176.0/204.1k76/76
223.123.0.0/204.1k76/76
223.123.16.0/204.1k76/76
223.123.80.0/204.1k76/76
111.119.168.0/212k76/76
111.119.176.0/212k76/76
111.119.184.0/212k76/76
117.134.224.0/212k76/76

Routing health

How AS59257'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

  • Valid99.3%450
  • Invalid0.0%0
  • No ROA0.7%3

Propagation

  • Globally propagated90% of full-feed peers or more99.8%452
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.2%1

Prefix sizes

IPv4 — 200 prefixes

IPv6 — 253 prefixes

  • /441M × /647.5%19
  • /4865.5k × /6492.5%234

Recent changes

Announcements that started or stopped since 26th Sept 2026.

19 announced and 7 withdrawn in all; the most recent are shown.

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