AS21557
Cybernet Communications, Inc.
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
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Network profile
Source: PeeringDB →Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 64.15.208.0/20 | 4.1K |
1.6%
|
Cybernet Communications, Inc. | US | California | El Monte |
| 75.127.48.0/20 | 4.1K |
1.0%
|
Cybernet Communications, Inc. | US | California | Los Angeles |
| 147.92.120.0/21 | 2.0K |
0.1%
|
Cybernet Communications, Inc. | US | California | Los Angeles |
| 104.218.188.0/22 | 1.0K |
0.0%
|
Cybernet Communications, Inc. | US | California | Los Angeles |
| 162.219.200.0/22 | 1.0K |
0.7%
|
Cybernet Communications, Inc. | US | California | Los Angeles |
| 23.128.104.0/23 | 512 |
0.0%
|
Cybernet Communications, Inc. | US | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS21557 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 |
|---|---|---|
| 104.218.188.0/22 | 11,297 | 2026-07-30 16:41:54 |
| 147.92.120.0/21 | 11,267 | 2026-07-30 16:50:04 |
| 23.128.104.0/23 | 10,871 | 2026-07-30 16:36:49 |
| 23.128.105.0/24 | 7,317 | 2026-07-30 16:37:08 |
| 23.128.104.0/24 | 7,297 | 2026-07-30 16:37:08 |
| 64.15.212.0/24 | 7,122 | 2026-07-30 16:38:09 |
| 64.15.213.0/24 | 7,110 | 2026-07-30 16:38:09 |
| 75.127.54.0/24 | 7,097 | 2026-07-30 16:37:36 |
| 75.127.62.0/24 | 7,097 | 2026-07-30 16:37:36 |
| 75.127.49.0/24 | 7,090 | 2026-07-30 16:37:36 |
| 75.127.61.0/24 | 7,090 | 2026-07-30 16:37:36 |
| 104.218.190.0/24 | 7,088 | 2026-07-30 16:41:54 |
| 75.127.48.0/24 | 7,085 | 2026-07-30 16:37:36 |
| 75.127.63.0/24 | 7,084 | 2026-07-30 16:37:36 |
| 75.127.57.0/24 | 7,081 | 2026-07-30 16:37:36 |
| 75.127.53.0/24 | 7,074 | 2026-07-30 16:37:36 |
| 64.15.218.0/24 | 7,073 | 2026-07-30 16:38:09 |
| 104.218.189.0/24 | 7,072 | 2026-07-30 16:41:54 |
| 75.127.51.0/24 | 7,072 | 2026-07-30 16:37:36 |
| 104.218.191.0/24 | 7,071 | 2026-07-30 16:41:54 |
| 75.127.52.0/24 | 7,067 | 2026-07-30 16:37:36 |
| 64.15.221.0/24 | 7,066 | 2026-07-30 16:38:09 |
| 64.15.223.0/24 | 7,064 | 2026-07-30 16:38:09 |
| 64.15.222.0/24 | 7,063 | 2026-07-30 16:38:09 |
| 104.218.188.0/24 | 7,048 | 2026-07-30 16:41:54 |
| 64.15.215.0/24 | 7,043 | 2026-07-30 16:38:09 |
| 162.219.201.0/24 | 6,997 | 2026-07-30 16:54:37 |
| 162.219.203.0/24 | 6,992 | 2026-07-30 16:54:37 |
| 162.219.202.0/24 | 6,986 | 2026-07-30 16:54:37 |
| 162.219.200.0/24 | 6,971 | 2026-07-30 16:54:37 |
| 147.92.120.0/22 | 6,962 | 2026-07-30 16:50:04 |
| 147.92.124.0/22 | 6,928 | 2026-07-30 16:50:04 |
| 64.15.208.0/20 | 6,888 | 2026-07-30 16:37:36 |
| 75.127.48.0/20 | 6,842 | 2026-07-30 16:37:36 |
| 162.219.200.0/22 | 6,807 | 2026-07-30 16:54:37 |
Frequently Asked Questions
What is AS21557?
AS21557 is an Autonomous System Number assigned to Cybernet Communications, Inc.. 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 AS21557 announce?
AS21557 announces 12.8K IPv4 addresses distributed across 6 routed CIDR prefixes. The network is registered in United States.
Who operates AS21557?
AS21557 is operated by Cybernet Communications, Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS21557 registered in?
AS21557 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
