Autonomous System
AS4837 · CHINA UNICOM China169 Backbone
Overview
AS4837 is announced on the Internet: RIPE RIS route collectors currently see 1,517 IPv4 prefixes and 652 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 57,727,488 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 58 upstream neighbours (transit providers or peers) and 102 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), Hurricane Electric LLC (AS6939), and Cogent Communications, LLC (AS174). AS4837 was assigned by APNIC, and its registration country is China.
Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 6:55 PM UTC. This page is refreshed at most every 12 hours.
Go further
The trace goes to 27.192.0.1, the first address of 27.192.0.0/11. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.
Announced prefixes
IPv4 prefixes (1,517 prefixes)
| Prefix | Addresses |
|---|---|
| 1.24.0.0/13 | 524,288 |
| 1.30.160.0/24 | 256 |
| 1.30.162.0/23 | 512 |
| 1.56.0.0/13 | 524,288 |
| 1.62.182.0/24 | 256 |
| 1.188.0.0/14 | 262,144 |
| 14.204.0.0/15 | 131,072 |
| 14.204.8.0/22 | 1,024 |
| 14.204.20.0/22 | 1,024 |
| 14.204.40.0/22 | 1,024 |
| 14.204.60.0/22 | 1,024 |
| 14.204.208.0/22 | 1,024 |
| 14.205.4.0/22 | 1,024 |
| 14.205.40.0/21 | 2,048 |
| 14.205.72.0/22 | 1,024 |
| 14.205.92.0/22 | 1,024 |
| 27.0.128.0/24 | 256 |
| 27.0.130.0/23 | 512 |
| 27.8.0.0/13 | 524,288 |
| 27.40.0.0/24 | 256 |
| 27.40.1.0/24 | 256 |
| 27.40.8.0/24 | 256 |
| 27.40.9.0/24 | 256 |
| 27.40.10.0/24 | 256 |
| 27.40.14.0/24 | 256 |
| 27.40.22.0/24 | 256 |
| 27.40.23.0/24 | 256 |
| 27.40.24.0/24 | 256 |
| 27.40.25.0/24 | 256 |
| 27.40.26.0/24 | 256 |
| 27.40.27.0/24 | 256 |
| 27.40.28.0/24 | 256 |
| 27.40.29.0/24 | 256 |
| 27.40.30.0/24 | 256 |
| 27.40.31.0/24 | 256 |
| 27.40.32.0/24 | 256 |
| 27.40.33.0/24 | 256 |
| 27.40.34.0/24 | 256 |
| 27.40.35.0/24 | 256 |
| 27.40.36.0/24 | 256 |
| 27.40.37.0/24 | 256 |
| 27.40.38.0/24 | 256 |
| 27.40.39.0/24 | 256 |
| 27.40.40.0/24 | 256 |
| 27.40.41.0/24 | 256 |
| 27.40.42.0/24 | 256 |
| 27.40.43.0/24 | 256 |
| 27.40.44.0/24 | 256 |
| 27.40.45.0/24 | 256 |
| 27.40.46.0/24 | 256 |
| 27.40.47.0/24 | 256 |
| 27.40.48.0/24 | 256 |
| 27.40.49.0/24 | 256 |
| 27.40.50.0/24 | 256 |
| 27.40.51.0/24 | 256 |
| 27.40.52.0/24 | 256 |
| 27.40.53.0/24 | 256 |
| 27.40.54.0/24 | 256 |
| 27.40.55.0/24 | 256 |
| 27.40.56.0/24 | 256 |
| 27.40.57.0/24 | 256 |
| 27.40.58.0/24 | 256 |
| 27.40.59.0/24 | 256 |
| 27.40.60.0/24 | 256 |
| 27.40.61.0/24 | 256 |
| 27.50.128.0/17 | 32,768 |
| 27.98.224.0/19 | 8,192 |
| 27.112.0.0/21 | 2,048 |
| 27.115.80.0/24 | 256 |
| 27.192.0.0/11 | 2,097,152 |
| 27.223.1.0/24 | 256 |
| 27.223.98.0/24 | 256 |
| 27.223.102.0/24 | 256 |
| 36.32.0.0/14 | 262,144 |
| 36.50.226.0/24 | 256 |
| 36.51.253.0/24 | 256 |
| 36.248.0.0/14 | 262,144 |
| 39.64.0.0/11 | 2,097,152 |
| 42.4.0.0/14 | 262,144 |
| 42.48.0.0/15 | 131,072 |
| 42.52.0.0/14 | 262,144 |
| 42.56.0.0/14 | 262,144 |
| 42.63.0.0/16 | 65,536 |
| 42.63.7.0/24 | 256 |
| 42.84.0.0/14 | 262,144 |
| 42.176.0.0/13 | 524,288 |
| 42.224.0.0/12 | 1,048,576 |
| 42.226.7.0/24 | 256 |
| 42.227.69.0/24 | 256 |
| 42.228.2.0/24 | 256 |
| 42.228.3.0/24 | 256 |
| 42.228.4.0/24 | 256 |
| 42.228.6.0/24 | 256 |
| 42.228.7.0/24 | 256 |
| 42.228.8.0/24 | 256 |
| 42.228.9.0/24 | 256 |
| 42.228.11.0/24 | 256 |
| 42.228.13.0/24 | 256 |
| 42.235.204.0/24 | 256 |
| 43.224.12.0/22 | 1,024 |
Showing the first 100 of 1,517, in address order. Complete list on RIPEstat
IPv6 prefixes (652 prefixes)
| Prefix |
|---|
| 2001:4510:1480::/41 |
| 2001:4511:1480::/41 |
| 2402:f140:ff13::/48 |
| 2402:f140:ff14::/48 |
| 2404:6500:dcb3::/48 |
| 2405:1480:3000::/47 |
| 2406:1e40:f012::/47 |
| 2406:cac0::/40 |
| 2406:cac0:200::/40 |
| 2407:6c40:1500::/48 |
| 2407:6c40:1600::/40 |
| 2408:8000::/48 |
| 2408:8000:2::/48 |
| 2408:8000:3::/48 |
| 2408:8000:1010::/48 |
| 2408:8000:10fe::/48 |
| 2408:8000:10ff::/48 |
| 2408:8000:2000::/36 |
| 2408:8000:2009::/48 |
| 2408:8000:200e::/48 |
| 2408:8000:3000::/36 |
| 2408:8000:3100::/48 |
| 2408:8000:3210::/48 |
| 2408:8000:3211::/48 |
| 2408:8000:3317::/48 |
| 2408:8000:3410::/48 |
| 2408:8000:3500::/48 |
| 2408:8000:3610::/48 |
| 2408:8000:3700::/48 |
| 2408:8000:3810::/48 |
| 2408:8000:3811::/48 |
| 2408:8000:3910::/48 |
| 2408:8000:3a13::/48 |
| 2408:8000:3b00::/48 |
| 2408:8000:3c10::/48 |
| 2408:8000:3c11::/48 |
| 2408:8000:4000::/36 |
| 2408:8000:4000::/48 |
| 2408:8000:4002::/48 |
| 2408:8000:4003::/48 |
| 2408:8000:4004::/48 |
| 2408:8000:4005::/48 |
| 2408:8000:4006::/48 |
| 2408:8000:4007::/48 |
| 2408:8000:4008::/48 |
| 2408:8000:4009::/48 |
| 2408:8000:400a::/48 |
| 2408:8000:400b::/48 |
| 2408:8000:5000::/36 |
| 2408:8000:5000::/48 |
| 2408:8000:5005::/48 |
| 2408:8000:6000::/36 |
| 2408:8000:6001::/48 |
| 2408:8000:6002::/48 |
| 2408:8000:6003::/48 |
| 2408:8000:6004::/48 |
| 2408:8000:6005::/48 |
| 2408:8000:6006::/48 |
| 2408:8000:6007::/48 |
| 2408:8000:6008::/48 |
| 2408:8000:6009::/48 |
| 2408:8000:600a::/48 |
| 2408:8000:600b::/48 |
| 2408:8000:600c::/48 |
| 2408:8000:600d::/48 |
| 2408:8000:600e::/48 |
| 2408:8000:7000::/36 |
| 2408:8000:7000::/48 |
| 2408:8000:7200::/48 |
| 2408:8000:8000::/36 |
| 2408:8000:8010::/47 |
| 2408:8000:8010::/48 |
| 2408:8000:8020::/48 |
| 2408:8000:8030::/48 |
| 2408:8000:8040::/48 |
| 2408:8000:8050::/48 |
| 2408:8000:8060::/48 |
| 2408:8000:8070::/48 |
| 2408:8000:8080::/48 |
| 2408:8000:8090::/48 |
| 2408:8000:80a0::/48 |
| 2408:8000:80b0::/48 |
| 2408:8000:80c0::/48 |
| 2408:8000:80d0::/48 |
| 2408:8000:a000::/36 |
| 2408:8000:a002::/48 |
| 2408:8000:a00d::/48 |
| 2408:8000:b000::/36 |
| 2408:8000:c000::/36 |
| 2408:8000:c038::/48 |
| 2408:8000:c03b::/48 |
| 2408:8000:c03c::/48 |
| 2408:8000:d000::/36 |
| 2408:8000:d101::/48 |
| 2408:8000:d201::/48 |
| 2408:8000:d501::/48 |
| 2408:8000:da01::/48 |
| 2408:8000:e000::/36 |
| 2408:8000:eeee::/48 |
| 2408:8000:f000::/36 |
Showing the first 100 of 652, in address order. Complete list on RIPEstat
Neighbours
Upstreams (transit or peers) (58)
| AS | Network | Visibility |
|---|---|---|
| AS1299 | Arelion Sweden AB | 6,732 |
| AS6939 | Hurricane Electric LLC | 6,131 |
| AS174 | Cogent Communications, LLC | 5,454 |
| AS10099 | China Unicom Global | 3,353 |
| AS5511 | Opentransit Orange S.A. | 3,285 |
| AS6762 | TELECOM ITALIA SPARKLE S.p.A. | 2,632 |
| AS6453 | TATA COMMUNICATIONS (AMERICA) INC | 1,776 |
| AS701 | Verizon Business | 1,637 |
| AS3356 | Level 3 Parent, LLC | 1,523 |
| AS4134 | No.31,Jin-rong Street | 1,507 |
| AS3257 | GTT Communications Inc. | 1,437 |
| AS3320 | Deutsche Telekom AG | 1,257 |
| AS2914 | NTT America, Inc. | 820 |
| AS12956 | TELEFONICA GLOBAL SOLUTIONS SL | 802 |
| AS2497 | Internet Initiative Japan Inc. | 780 |
| AS6461 | Zayo Bandwidth | 771 |
| AS3303 | Swisscom (Schweiz) AG | 735 |
| AS33891 | Core-Backbone GmbH | 529 |
| AS137897 | PAN-LIAN TECHNOLOGY CO., LIMITED | 529 |
| AS45474 | Nexusguard Pte. Ltd. | 490 |
| AS9929 | CHINA UNICOM Industrial Internet Backbone | 489 |
| AS5405 | Inter.link GmbH | 487 |
| AS6830 | LibertyGlobal Liberty Global Europe Holding B.V. | 470 |
| AS4230 | CLARO S.A. | 387 |
| AS12779 | IT.Gate S.p.A. | 346 |
| AS30781 | - | 343 |
| AS41327 | Fiber Telecom S.p.A. | 337 |
| AS20485 | Joint Stock Company TransTeleCom | 331 |
| AS2516 | KDDI CORPORATION | 314 |
| AS8455 | atom86 BV | 310 |
The 30 most visible of 58.
Downstreams (customers) (102)
| AS | Network | Visibility |
|---|---|---|
| AS4808 | China Unicom Beijing Province Network | 13,255 |
| AS17621 | China Unicom Shanghai network | 5,686 |
| AS9929 | CHINA UNICOM Industrial Internet Backbone | 2,112 |
| AS4134 | No.31,Jin-rong Street | 1,936 |
| AS136958 | China Unicom Guangdong IP network | 1,507 |
| AS17623 | China Unicom Shenzen network | 1,284 |
| AS37963 | Hangzhou Alibaba Advertising Co.,Ltd. | 1,091 |
| AS135061 | China Unicom Guangdong IP network | 1,020 |
| AS17622 | China Unicom Guangzhou network | 965 |
| AS138421 | China Unicom | 934 |
| AS140726 | - | 848 |
| AS134544 | - | 759 |
| AS134542 | - | 622 |
| AS137897 | PAN-LIAN TECHNOLOGY CO., LIMITED | 529 |
| AS10206 | - | 526 |
| AS37969 | Zhejiang WuLian Network Technology Co.,Ltd. | 497 |
| AS17816 | - | 474 |
| AS140717 | - | 473 |
| AS24406 | - | 465 |
| AS140716 | - | 460 |
| AS139007 | - | 453 |
| AS140979 | - | 451 |
| AS17968 | - | 447 |
| AS133119 | - | 447 |
| AS9808 | China Mobile Communications Group Co., Ltd. | 442 |
| AS140886 | - | 433 |
| AS63718 | - | 422 |
| AS134543 | - | 420 |
| AS24139 | Huashu media&Network Limited | 416 |
| AS140707 | - | 416 |
The 30 most visible of 102.
67 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.
Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.
How to read this page
An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.
A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.
Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.
The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.