AS4837
CHINA UNICOM China169 Backbone
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.
- Baseline (neutral) 65
- Active-threat / abuse risk −12
- Isp allocation +5
- Trust score 58 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
About China Unicom
China United Network Communications Group Co., Ltd., doing business as China Unicom, is a Chinese state-owned telecommunications operator. Originally founded in 1994 as a wireless paging and GSM mobile operator, it currently provides a range of services including mobile network, long-distance & local calling, data communication, Internet services, digital television, and IP telephony.
⚠ 4 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS4837 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) |
|---|---|---|
| 27.0.132.0/22 | AS4837, AS58854 | 2026-08-30 00:23:56 |
| 103.248.154.0/24 | AS4837, AS131516 | 2026-08-30 00:23:56 |
| 103.197.1.0/24 | AS4837, AS55996 | 2026-08-30 00:23:56 |
| 111.223.12.0/22 | AS4837, AS63567 | 2026-08-29 18:23:54 |
Network profile
Source: PeeringDB →Present at 2 internet exchanges: AMS-IX, DE-CIX Frankfurt: DE-CIX Frankfurt Peering LAN
Web3 footprint
AS4837 hosts 14 observed decentralized-network nodes across 2 networks. It’s a neutral signal — it does not affect the reputation score. See the full web3 node map.
AS4837 — global IP footprint
Cities where AS4837 has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS4837 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 |
|---|---|---|
| 61.243.3.0/24 | 381,748 | 2026-08-29 21:19:49 |
| 61.243.4.0/24 | 381,648 | 2026-08-29 21:19:49 |
| 61.243.1.0/24 | 381,255 | 2026-08-29 21:19:49 |
| 61.243.2.0/24 | 381,176 | 2026-08-29 21:19:49 |
| 61.243.10.0/24 | 380,535 | 2026-08-29 21:19:49 |
| 61.243.12.0/24 | 341,963 | 2026-08-29 21:19:49 |
| 61.243.11.0/24 | 205,462 | 2026-08-29 21:19:49 |
| 103.85.84.0/23 | 27,532 | 2026-08-30 00:05:33 |
| 27.40.43.0/24 | 24,835 | 2026-08-30 00:05:33 |
| 42.63.0.0/16 | 23,580 | 2026-08-30 00:05:33 |
| 27.40.47.0/24 | 23,547 | 2026-08-30 00:05:33 |
| 27.40.31.0/24 | 23,341 | 2026-08-30 00:05:33 |
| 60.13.128.0/17 | 23,314 | 2026-08-30 00:05:33 |
| 113.200.0.0/15 | 23,029 | 2026-08-30 00:05:33 |
| 27.40.58.0/24 | 22,996 | 2026-08-30 00:05:33 |
| 119.4.0.0/14 | 22,991 | 2026-08-30 00:05:33 |
| 221.207.0.0/18 | 22,817 | 2026-08-30 00:05:33 |
| 221.13.64.0/19 | 22,816 | 2026-08-30 00:05:33 |
| 1.24.0.0/13 | 22,349 | 2026-08-30 00:05:33 |
| 36.50.226.0/24 | 22,315 | 2026-08-30 00:05:33 |
| 202.91.224.0/21 | 21,146 | 2026-08-30 00:05:33 |
| 202.91.232.0/21 | 21,129 | 2026-08-30 00:05:33 |
| 202.75.212.0/22 | 20,917 | 2026-08-30 00:05:33 |
| 211.155.232.0/22 | 20,906 | 2026-08-30 00:05:33 |
| 202.75.208.0/22 | 20,845 | 2026-08-30 00:05:33 |
| 202.38.164.0/23 | 20,575 | 2026-08-30 00:05:33 |
| 36.248.0.0/14 | 20,185 | 2026-08-30 00:05:33 |
| 27.40.38.0/24 | 19,959 | 2026-08-30 00:05:33 |
| 60.28.0.0/15 | 19,918 | 2026-08-30 00:05:33 |
| 43.240.56.0/22 | 19,874 | 2026-08-29 23:34:25 |
| 27.40.41.0/24 | 19,839 | 2026-08-30 00:05:33 |
| 58.240.0.0/15 | 19,832 | 2026-08-30 00:05:33 |
| 60.12.7.0/24 | 19,746 | 2026-08-30 00:05:33 |
| 101.199.196.0/22 | 19,706 | 2026-08-30 00:05:33 |
| 220.194.140.0/24 | 19,700 | 2026-08-29 16:45:34 |
| 27.40.59.0/24 | 19,685 | 2026-08-30 00:05:33 |
| 43.224.52.0/23 | 19,411 | 2026-08-30 00:05:33 |
| 123.138.0.0/15 | 19,381 | 2026-08-30 00:05:33 |
| 27.40.42.0/24 | 19,338 | 2026-08-30 00:05:33 |
| 1.188.0.0/14 | 19,329 | 2026-08-30 00:05:33 |
| 43.250.96.0/22 | 19,322 | 2026-08-30 00:05:33 |
| 122.192.0.0/14 | 19,321 | 2026-08-30 00:05:33 |
| 103.236.120.0/22 | 19,318 | 2026-08-30 00:05:33 |
| 43.240.204.0/22 | 19,307 | 2026-08-30 00:05:33 |
| 112.80.0.0/13 | 19,256 | 2026-08-30 00:05:33 |
| 43.250.244.0/22 | 19,246 | 2026-08-30 00:05:33 |
| 43.248.184.0/21 | 19,227 | 2026-08-30 00:05:33 |
| 1.56.0.0/13 | 19,215 | 2026-08-30 00:05:33 |
| 45.254.48.0/23 | 19,211 | 2026-08-30 00:05:33 |
| 43.248.244.0/22 | 19,094 | 2026-08-30 00:05:33 |
Showing top 50 of 1,588 announced prefixes by sample volume.
Frequently Asked Questions
What is AS4837?
AS4837 is an Autonomous System Number assigned to CHINA UNICOM China169 Backbone. 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 AS4837 announce?
AS4837 announces 57.27M IPv4 addresses distributed across 1,326 routed CIDR prefixes. The network is registered in China.
Who operates AS4837?
AS4837 is operated by CHINA UNICOM China169 Backbone. The organization is based in China. You can view all IP ranges and related ASNs on the organization page.
What country is AS4837 registered in?
AS4837 is registered in China. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
