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 v1.2.1 — a transparent heuristic, not a definitive verdict. How it works →
About Level 3 Communications
Level 3 Communications, Inc. was an American multinational telecommunications and internet service provider company headquartered in Broomfield, Colorado.
⚠ 5 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS3549 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) |
|---|---|---|
| 216.54.136.192/27 | AS3549, AS10753 | 2026-10-16 23:14:23 |
| 190.5.20.0/24 | AS3549, AS27827 | 2026-10-16 23:14:23 |
| 161.217.192.0/24 | AS3549, AS22284 | 2026-10-16 23:14:23 |
| 170.17.24.0/21 | AS3549, AS26039 | 2026-10-16 23:14:23 |
| 161.217.131.0/24 | AS3549, AS22284 | 2026-10-15 18:59:13 |
Network profile
Source: PeeringDB →AS3549 — global IP footprint
Cities where AS3549 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 AS3549 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 |
|---|---|---|
| 198.152.17.0/24 | 101,479 | 2026-10-07 10:51:12 |
| 161.217.174.0/24 | 90,969 | 2026-10-16 22:45:57 |
| 161.217.131.0/24 | 69,842 | 2026-10-14 19:00:20 |
| 161.217.81.0/24 | 55,856 | 2026-10-16 22:45:48 |
| 161.217.213.0/24 | 52,224 | 2026-10-16 22:45:48 |
| 207.120.42.0/24 | 48,183 | 2026-10-16 22:46:11 |
| 38.210.226.0/24 | 47,400 | 2026-07-30 21:52:20 |
| 171.75.112.0/24 | 44,925 | 2026-10-16 22:46:11 |
| 171.75.224.0/22 | 44,691 | 2026-10-16 22:46:15 |
| 171.75.64.0/18 | 44,579 | 2026-10-16 22:46:13 |
| 161.217.165.0/24 | 44,525 | 2026-10-16 22:46:11 |
| 161.217.116.0/24 | 43,273 | 2026-10-16 22:45:57 |
| 161.217.176.0/24 | 42,545 | 2026-10-16 22:46:11 |
| 161.217.162.0/24 | 41,909 | 2026-10-16 22:46:11 |
| 64.132.11.0/24 | 40,752 | 2026-10-16 22:46:00 |
| 161.217.159.0/24 | 38,219 | 2026-10-16 22:46:11 |
| 192.188.45.0/24 | 37,187 | 2026-10-16 22:45:56 |
| 209.163.212.0/24 | 36,780 | 2026-10-16 22:46:00 |
| 216.54.191.0/24 | 36,487 | 2026-10-16 22:46:00 |
| 64.76.90.0/24 | 36,439 | 2026-10-16 22:45:36 |
| 64.76.190.0/24 | 36,402 | 2026-10-16 22:45:36 |
| 161.217.172.0/24 | 36,062 | 2026-10-16 22:46:10 |
| 161.217.140.0/24 | 36,053 | 2026-08-03 20:07:57 |
| 161.217.193.0/24 | 35,768 | 2026-10-16 22:46:18 |
| 161.217.152.0/24 | 35,402 | 2026-10-16 22:46:27 |
| 137.106.172.0/24 | 35,069 | 2026-10-16 22:46:03 |
| 161.217.184.0/24 | 35,009 | 2026-10-16 22:46:10 |
| 190.217.48.0/24 | 34,028 | 2026-10-16 22:45:36 |
| 200.41.9.0/24 | 32,926 | 2026-10-16 22:45:36 |
| 201.234.71.0/24 | 32,897 | 2026-10-16 22:45:36 |
| 201.234.76.0/24 | 32,823 | 2026-10-16 22:45:36 |
| 200.41.6.0/24 | 32,821 | 2026-10-16 22:45:36 |
| 64.76.138.0/24 | 32,406 | 2026-10-16 22:55:29 |
| 161.217.186.0/24 | 32,096 | 2026-10-16 22:45:48 |
| 165.83.37.0/24 | 28,815 | 2026-10-16 22:46:27 |
| 201.234.191.0/24 | 28,101 | 2026-10-16 22:55:27 |
| 201.234.73.0/24 | 28,092 | 2026-10-16 22:55:27 |
| 201.234.189.0/24 | 28,048 | 2026-10-16 22:55:27 |
| 140.215.248.0/21 | 27,866 | 2026-10-16 22:45:57 |
| 200.32.113.0/24 | 27,173 | 2026-10-16 22:46:23 |
| 161.217.163.0/24 | 27,139 | 2026-10-16 22:45:48 |
| 161.217.179.0/24 | 26,836 | 2026-09-23 05:22:02 |
| 148.230.10.0/23 | 26,680 | 2026-10-16 22:46:04 |
| 148.230.12.0/23 | 26,326 | 2026-10-16 22:46:03 |
| 148.230.8.0/23 | 26,296 | 2026-10-16 22:46:03 |
| 148.230.14.0/24 | 26,296 | 2026-10-16 22:46:23 |
| 204.199.93.0/24 | 26,205 | 2026-10-16 22:46:23 |
| 204.199.92.0/24 | 26,146 | 2026-10-16 22:46:23 |
| 201.234.184.0/24 | 26,122 | 2026-10-16 22:46:22 |
| 8.242.235.0/24 | 25,798 | 2026-10-16 22:46:34 |
Showing top 50 of 1,017 announced prefixes by sample volume.
Frequently Asked Questions
What is AS3549?
AS3549 is an Autonomous System Number assigned to Level 3 Parent, LLC. 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 AS3549 announce?
AS3549 announces 4.50M IPv4 addresses distributed across 3,138 routed CIDR prefixes. The network is registered in United States.
Who operates AS3549?
AS3549 is operated by Level 3 Parent, LLC. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS3549 registered in?
AS3549 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
