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

AS4837 — CHINA169-BACKBONE

CHINA UNICOM China169 Backbone

AS4837 is a major transit provider run by CHINA UNICOM China169 Backbone, established in China. The network announces a whopping 57.7 million IPv4 addresses (1.56% of routable IPv4 space), including a /11. Supports IPv6.

  • Top 5% — Top 5% of all autonomous systems by reach and degree
  • Space Overlord — Over 10 million IPv4 addresses
  • #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
March 04, 2026

Prefix Summary

IPv4 Prefixes (raw / aggregated)
1 049 / 553
IPv6 Prefixes (raw / aggregated)
531 / 291
IPv4 Addresses
57 679 104
Largest IPv4 Prefix
/11 (2 097 152 addresses)
Largest IPv6 Prefix
/29
Geolocated Countries
🇨🇳 CN (3 336 IPs), 🇦🇺 AU (19 IPs)
Prefix Changed
March 04, 2026

Reputation

Reputation
Fair — 4 401 flagged IPs out of 57 679 104 total (0.01%)
Open Proxies
17 known open proxies in this network

Connectivity Summary

Upstream Providers
11 upstream autonomous systems providing transit
Peers
51 autonomous systems exchanging traffic without transit fees
Downstream Customers
83 downstream autonomous systems buying transit
Degree
151 unique BGP neighbors (providers + customers + peers)
Reach
13 153 — customer cone size measuring network influence
Degree Rank
#951
Reach Rank
#413
Country Rank
#2

Upstream Providers (11)

  • AS174 — COGENT-174 (Tier-1 transit)
  • AS3356 — LEVEL3 (Tier-1 transit)
  • AS7018 — ATT-INTERNET4 (Tier-1 transit)
  • AS701 — UUNET (Tier-1 transit)
  • AS3320 — DTAG (Tier-1 transit)
  • AS4766 — KIXS-AS
  • AS10099 — UNICOM-GLOBAL
  • AS5511 — OPENTRANSIT (Tier-1 transit)
  • AS4134 — CHINANET-BACKBONE
  • AS7473 — SINGTEL-AS-AP
  • and 1 more

Prefix Lists

IPv4 Prefixes (1 049 total)

  • 27.192.0.0/11 (2 097 152 addresses)
  • 39.64.0.0/11 (2 097 152 addresses)
  • 60.0.0.0/11 (2 097 152 addresses)
  • 112.224.0.0/11 (2 097 152 addresses)
  • 42.224.0.0/12 (1 048 576 addresses)
  • 60.208.0.0/12 (1 048 576 addresses)
  • 101.16.0.0/12 (1 048 576 addresses)
  • 110.240.0.0/12 (1 048 576 addresses)
  • 113.224.0.0/12 (1 048 576 addresses)
  • 115.48.0.0/12 (1 048 576 addresses)
  • 119.176.0.0/12 (1 048 576 addresses)
  • 120.0.0.0/12 (1 048 576 addresses)
  • 121.16.0.0/12 (1 048 576 addresses)
  • 175.160.0.0/12 (1 048 576 addresses)
  • 182.112.0.0/12 (1 048 576 addresses)
  • 1.24.0.0/13 (524 288 addresses)
  • 1.56.0.0/13 (524 288 addresses)
  • 27.8.0.0/13 (524 288 addresses)
  • 42.176.0.0/13 (524 288 addresses)
  • 58.16.0.0/13 (524 288 addresses)
  • 101.64.0.0/13 (524 288 addresses)
  • 111.160.0.0/13 (524 288 addresses)
  • 112.80.0.0/13 (524 288 addresses)
  • 113.0.0.0/13 (524 288 addresses)
  • 116.136.0.0/13 (524 288 addresses)
  • 117.8.0.0/13 (524 288 addresses)
  • 118.72.0.0/13 (524 288 addresses)
  • 119.48.0.0/13 (524 288 addresses)
  • 119.112.0.0/13 (524 288 addresses)
  • 122.136.0.0/13 (524 288 addresses)
  • 123.8.0.0/13 (524 288 addresses)
  • 123.128.0.0/13 (524 288 addresses)
  • 123.152.0.0/13 (524 288 addresses)
  • 124.88.0.0/13 (524 288 addresses)
  • 124.128.0.0/13 (524 288 addresses)
  • 124.160.0.0/13 (524 288 addresses)
  • 125.40.0.0/13 (524 288 addresses)
  • 139.208.0.0/13 (524 288 addresses)
  • 171.120.0.0/13 (524 288 addresses)
  • 175.16.0.0/13 (524 288 addresses)
  • 183.184.0.0/13 (524 288 addresses)
  • 221.200.0.0/13 (524 288 addresses)
  • 221.208.0.0/13 (524 288 addresses)
  • 222.136.0.0/13 (524 288 addresses)
  • 1.188.0.0/14 (262 144 addresses)
  • 36.32.0.0/14 (262 144 addresses)
  • 36.248.0.0/14 (262 144 addresses)
  • 42.4.0.0/14 (262 144 addresses)
  • 42.52.0.0/14 (262 144 addresses)
  • 42.56.0.0/14 (262 144 addresses)

IPv6 Prefixes (531 total)

  • 2408:8230::/29
  • 2408:84f8::/29
  • 2408:8630::/29
  • 2408:8748::/29
  • 2408:8210::/30
  • 2408:8244::/30
  • 2408:8248::/30
  • 2408:8250::/30
  • 2408:826c::/30
  • 2408:8274::/30
  • 2408:8310::/30
  • 2408:8330::/30
  • 2408:8344::/30
  • 2408:8348::/30
  • 2408:8350::/30
  • 2408:8360::/30
  • 2408:836c::/30
  • 2408:8374::/30
  • 2408:8410::/30
  • 2408:8434::/30
  • 2408:843c::/30
  • 2408:8444::/30
  • 2408:844c::/30
  • 2408:8460::/30
  • 2408:846c::/30
  • 2408:8474::/30
  • 2408:84e4::/30
  • 2408:84ec::/30
  • 2408:84f4::/30
  • 2408:8610::/30
  • 2408:8644::/30
  • 2408:8650::/30
  • 2408:866c::/30
  • 2408:8674::/30
  • 2408:8710::/30
  • 2408:8720::/30
  • 2408:8730::/30
  • 2408:8744::/30
  • 2408:876c::/30
  • 2408:8914::/30
  • 2408:8978::/30
  • 2408:8214::/31
  • 2408:821a::/31
  • 2408:8220::/31
  • 2408:822a::/31
  • 2408:822e::/31
  • 2408:8238::/31
  • 2408:823c::/31
  • 2408:824e::/31
  • 2408:825c::/31