$ query “AS4837” --type=asn → 1 result(s)

AS4837 · CHINA169-BACKBONE

CHINA UNICOM China169 Backbone

AS4837 is owned by CHINA UNICOM China169 Backbone and is a major transit provider, established in China. The system announces a whopping 57.7 million IPv4 addresses (1.56% of routable IPv4 space), including a /11, and supports IPv6. Its primary geographic footprint is in China, with additional presence in Australia. This AS's prefix announcements have been recently modified.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Space Overlord — Over 10 million IPv4 addresses
  • #65 by Reach — Top 100 by customer cone size
  • #2 in China — Top 10 by reach within country

Basic Information

Country
🇨🇳 China
Category
Internet Service Provider
Network Role
Major Transit
Data Origin
Authoritative — Metadata from authoritative RIR registry (ARIN, RIPE, APNIC, etc.)
Last Changed
March 04, 2026
Last Seen
April 28, 2026 (active)

Prefix Summary

IPv4 Prefixes (raw / aggregated)
1 069 / 556
IPv6 Prefixes (raw / aggregated)
535 / 295
IPv4 Addresses
57 697 280
Largest IPv4 Prefix
/11 (2 097 152 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇨🇳 China (99 916 608 IPs), 🇦🇺 Australia (1 036 544 IPs)
Prefix Changed
April 24, 2026

Reputation

Reputation
Fair — 3 011 flagged IPs out of 57 697 280 total (0.01%)
Open Proxies
22 known open proxies in this network

Connectivity Summary

Upstream Providers
12 upstreams providing transit
Peers
52 networks exchanging traffic without transit
Downstream Customers
87 downstreams buying transit
Unclassified
5 unclassified BGP neighbors
Degree
156 unique BGP neighbors
Reach
39 954 networks in customer cone

Upstream Providers (12)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS7018 — ATT-INTERNET4 (Tier-1 transit)
  • AS3549 — LVLT-3549
  • AS701 — UUNET (Tier-1 transit)
  • AS3320 — DTAG (Tier-1 transit)
  • AS4766 — KIXS-AS
  • AS10099 — UNICOM-GLOBAL
  • AS5511 — OPENTRANSIT (Tier-1 transit)
  • AS17676 — GIGAINFRA
  • and 2 more

Prefix Lists

IPv4 Prefixes (1 069 total)

  • 60.0.0.0/11 (2 097 152 addresses (/11 prefix))
  • 112.224.0.0/11 (2 097 152 addresses (/11 prefix))
  • 27.192.0.0/11 (2 097 152 addresses (/11 prefix))
  • 39.64.0.0/11 (2 097 152 addresses (/11 prefix))
  • 175.160.0.0/12 (1 048 576 addresses (/12 prefix))
  • 182.112.0.0/12 (1 048 576 addresses (/12 prefix))
  • 101.16.0.0/12 (1 048 576 addresses (/12 prefix))
  • 60.208.0.0/12 (1 048 576 addresses (/12 prefix))
  • 110.240.0.0/12 (1 048 576 addresses (/12 prefix))
  • 115.48.0.0/12 (1 048 576 addresses (/12 prefix))
  • 119.176.0.0/12 (1 048 576 addresses (/12 prefix))
  • 120.0.0.0/12 (1 048 576 addresses (/12 prefix))
  • 121.16.0.0/12 (1 048 576 addresses (/12 prefix))
  • 113.224.0.0/12 (1 048 576 addresses (/12 prefix))
  • 42.224.0.0/12 (1 048 576 addresses (/12 prefix))
  • 112.80.0.0/13 (524 288 addresses (/13 prefix))
  • 123.8.0.0/13 (524 288 addresses (/13 prefix))
  • 101.64.0.0/13 (524 288 addresses (/13 prefix))
  • 1.56.0.0/13 (524 288 addresses (/13 prefix))
  • 116.136.0.0/13 (524 288 addresses (/13 prefix))
  • 183.184.0.0/13 (524 288 addresses (/13 prefix))
  • 122.136.0.0/13 (524 288 addresses (/13 prefix))
  • 42.176.0.0/13 (524 288 addresses (/13 prefix))
  • 58.16.0.0/13 (524 288 addresses (/13 prefix))
  • 221.200.0.0/13 (524 288 addresses (/13 prefix))
  • 124.128.0.0/13 (524 288 addresses (/13 prefix))
  • 124.88.0.0/13 (524 288 addresses (/13 prefix))
  • 221.208.0.0/13 (524 288 addresses (/13 prefix))
  • 222.136.0.0/13 (524 288 addresses (/13 prefix))
  • 27.8.0.0/13 (524 288 addresses (/13 prefix))
  • 1.24.0.0/13 (524 288 addresses (/13 prefix))
  • 123.128.0.0/13 (524 288 addresses (/13 prefix))
  • 119.112.0.0/13 (524 288 addresses (/13 prefix))
  • 124.160.0.0/13 (524 288 addresses (/13 prefix))
  • 119.48.0.0/13 (524 288 addresses (/13 prefix))
  • 111.160.0.0/13 (524 288 addresses (/13 prefix))
  • 123.152.0.0/13 (524 288 addresses (/13 prefix))
  • 117.8.0.0/13 (524 288 addresses (/13 prefix))
  • 125.40.0.0/13 (524 288 addresses (/13 prefix))
  • 175.16.0.0/13 (524 288 addresses (/13 prefix))
  • 113.0.0.0/13 (524 288 addresses (/13 prefix))
  • 171.120.0.0/13 (524 288 addresses (/13 prefix))
  • 139.208.0.0/13 (524 288 addresses (/13 prefix))
  • 118.72.0.0/13 (524 288 addresses (/13 prefix))
  • 175.148.0.0/14 (262 144 addresses (/14 prefix))
  • 116.112.0.0/14 (262 144 addresses (/14 prefix))
  • 112.192.0.0/14 (262 144 addresses (/14 prefix))
  • 171.36.0.0/14 (262 144 addresses (/14 prefix))
  • 171.116.0.0/14 (262 144 addresses (/14 prefix))
  • 222.132.0.0/14 (262 144 addresses (/14 prefix))
  • and 506 more

IPv6 Prefixes (535 total)

  • 2408:8748::/29
  • 2408:8230::/29
  • 2408:84f8::/29
  • 2408:8630::/29
  • 2408:846c::/30
  • 2408:8444::/30
  • 2408:8730::/30
  • 2408:8720::/30
  • 2408:8710::/30
  • 2408:843c::/30
  • 2408:866c::/30
  • 2408:8650::/30
  • 2408:8644::/30
  • 2408:876c::/30
  • 2408:8610::/30
  • 2408:8914::/30
  • 2408:84f4::/30
  • 2408:84ec::/30
  • 2408:84e4::/30
  • 2408:8474::/30
  • 2408:8210::/30
  • 2408:8460::/30
  • 2408:8744::/30
  • 2408:844c::/30
  • 2408:8674::/30
  • 2408:8434::/30
  • 2408:8410::/30
  • 2408:8374::/30
  • 2408:836c::/30
  • 2408:8360::/30
  • 2408:8350::/30
  • 2408:8348::/30
  • 2408:8344::/30
  • 2408:8330::/30
  • 2408:8310::/30
  • 2408:8274::/30
  • 2408:826c::/30
  • 2408:8250::/30
  • 2408:8248::/30
  • 2408:8244::/30
  • 2408:8978::/30
  • 2408:8734::/31
  • 2408:8438::/31
  • 2408:896e::/31
  • 2408:8964::/31
  • 2408:8962::/31
  • 2408:8912::/31
  • 2408:8878::/31
  • 2408:8214::/31
  • 2408:821a::/31
  • and 245 more