AS11983
Tiktok U.S. Data Security 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
- Active-threat / abuse risk −12
- Trust score 53 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
⚠ 23 MOAS prefixes — multiple origin ASNs detected
All MOAS anomalies →A previously stable prefix originated by AS11983 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) |
|---|---|---|
| 71.18.183.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 147.160.182.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.43.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.10.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 192.64.15.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.8.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.95.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.11.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.135.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.104.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.116.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.243.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.60.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 147.160.177.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
| 71.18.188.0/24 | AS11983, AS396986 | 2026-09-14 08:56:31 |
Showing the 15 most recently detected of 23 MOAS prefixes. Many multi-origin prefixes on large networks are benign (anycast); see all MOAS anomalies.
Network profile
Source: PeeringDB →Present at 11 internet exchanges: Equinix Ashburn, FL-IX, SIX Seattle: MTU 1500, Equinix San Jose, Equinix Chicago, Equinix Dallas, Digital Realty New York, DE-CIX Phoenix, DE-CIX Dallas: DE-CIX Dallas Peering LAN, DE-CIX Chicago, …
Top CIDR ranges
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS11983 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 |
|---|---|---|
| 71.18.192.0/24 | 45,416 | 2026-09-14 08:50:40 |
| 71.18.191.0/24 | 45,410 | 2026-09-14 08:50:40 |
| 71.18.193.0/24 | 45,396 | 2026-09-14 08:51:07 |
| 71.18.125.0/24 | 30,402 | 2026-09-14 05:21:39 |
| 71.18.50.0/24 | 7,266 | 2026-09-14 08:44:54 |
| 71.18.135.0/24 | 5,900 | 2026-09-14 05:21:39 |
| 71.18.6.0/24 | 5,801 | 2026-09-14 05:21:39 |
| 147.160.182.0/24 | 5,430 | 2026-09-14 05:22:13 |
| 147.160.177.0/24 | 5,253 | 2026-09-14 05:22:15 |
| 71.18.11.0/24 | 5,168 | 2026-09-14 05:21:41 |
| 71.18.162.0/24 | 4,959 | 2026-09-14 05:21:41 |
| 71.18.183.0/24 | 4,955 | 2026-09-14 05:21:41 |
| 71.18.104.0/24 | 4,361 | 2026-09-14 08:44:53 |
| 71.18.224.0/24 | 3,096 | 2026-08-19 17:12:12 |
| 192.64.15.0/24 | 2,826 | 2026-09-14 07:44:56 |
| 71.18.130.0/24 | 2,742 | 2026-09-14 07:39:32 |
| 71.18.53.0/24 | 2,717 | 2026-09-14 08:39:47 |
| 71.18.52.0/24 | 2,711 | 2026-09-14 08:39:47 |
| 71.18.31.0/24 | 2,662 | 2026-09-14 07:39:32 |
| 71.18.166.0/24 | 2,620 | 2026-09-14 07:39:32 |
| 147.160.180.0/24 | 2,542 | 2026-09-14 07:42:30 |
| 71.18.60.0/24 | 2,334 | 2026-09-14 05:21:39 |
| 71.18.38.0/24 | 2,330 | 2026-09-14 05:21:39 |
| 71.18.10.0/24 | 2,329 | 2026-09-14 05:21:39 |
| 71.18.243.0/24 | 2,070 | 2026-09-14 05:21:40 |
| 71.18.116.0/24 | 2,070 | 2026-09-14 05:21:40 |
| 71.18.188.0/24 | 2,058 | 2026-09-14 05:21:40 |
| 71.18.33.0/24 | 2,027 | 2026-09-14 05:21:40 |
| 71.18.123.0/24 | 1,853 | 2026-09-14 05:21:40 |
| 71.18.124.0/24 | 1,850 | 2026-09-14 05:21:40 |
| 71.18.95.0/24 | 1,814 | 2026-09-14 05:21:39 |
| 71.18.8.0/24 | 1,809 | 2026-09-14 05:21:39 |
| 71.18.43.0/24 | 1,638 | 2026-09-14 05:21:40 |
Frequently Asked Questions
What is AS11983?
AS11983 is an Autonomous System Number assigned to Tiktok U.S. Data Security 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 AS11983 announce?
AS11983 announces 7.2K IPv4 addresses distributed across 25 routed CIDR prefixes. The network is registered in United States.
Who operates AS11983?
AS11983 is operated by Tiktok U.S. Data Security Inc.. The organization is based in United States. You can view all IP ranges and related ASNs on the organization page.
What country is AS11983 registered in?
AS11983 is registered in United States. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
