#119 A4 ANCHOR BARGE // Vessel Intelligence System

Intelligence Overview

A4 ANCHOR BARGE · MMSI 338411695 · 🇺🇸 US · Primary Port: Savannah

PERIOD: JAN–DEC 2024

⚠ INTELLIGENCE ASSESSMENT: A4 ANCHOR BARGE ranks #119 of 69,461 monitored vessels with 156 anomalous detections across 12 months. Composite risk score: 0.9500 (CRITICAL). Active alert types: POSITION_JUMP, ZIGZAG, SPEED_ANOMALY.

Global Rank

#119

of 69,461 vessels

Composite Score

0.9500

CRITICAL

Total Detections

156

Months Active

12/12

Unique Ports

7

Position Jumps

32

GPS spoofing

Speed Anomalies

53

Max Speed

102.2 kn

Max Jump

3,650km

Monthly Detection Volume

1
10

10
16

11
18

12
17

2
13

3
18

4
20

2024 MONTHLY DETECTIONS

Alert Type Distribution

SPEED_ANOMALY

53

POSITION_JUMP

32

ZIGZAG

27

Key Intelligence Findings

GPS Spoofing — 32 Position Jumps

AIS coordinates fabricated at impossible locations. Maximum jump of 3,650 km confirms the AIS transmitter is broadcasting false positions. Systematic identity concealment is in progress.

Velocity Fraud — 53 Speed Anomaly Events

AIS SOG field manipulated to broadcast physically impossible speeds up to 102.2 knots. Systematic falsification of movement data to corrupt automated tracking algorithms.

Evasion Navigation — 27 Zigzag Events

Erratic course-over-ground patterns up to 146.4° std deviation, far exceeding the 50° anomaly threshold. Pattern consistent with surveillance evasion maneuvers or anchor position AIS noise.

Port Detection Summary

🇺🇸

Savannah

83

avg 0.763

🇺🇸

Charleston

13

avg 0.794

🇺🇸

Wilmington NC

6

avg 0.760

🇺🇸

Jacksonville

5

avg 0.763

🇺🇸

Norfolk

3

avg 0.836

🇺🇸

Port Canaveral

1

avg 0.950

🇨🇦

Vancouver

1

avg 0.950

Monthly Alert Log — All Months

Month	Detections	Severity	Score	Nearest Port	Alert Types
January 2024	10	CRITICAL	0.9341	Savannah	SPEED_ANOMALY; POSITION_JUMP; ZIGZAG
February 2024	13	HIGH	0.8509	Savannah	POSITION_JUMP; SPEED_ANOMALY; ZIGZAG
March 2024	18	CRITICAL	0.9500	Savannah	SPEED_ANOMALY; ZIGZAG; POSITION_JUMP
April 2024	20	CRITICAL	0.9388	Savannah	POSITION_JUMP; SPEED_ANOMALY; ZIGZAG
May 2024	10	HIGH	0.8416	Savannah	SPEED_ANOMALY; POSITION_JUMP; ZIGZAG
June 2024	2	MEDIUM	0.6962	Savannah	SPEED_ANOMALY
July 2024	10	CRITICAL	0.9500	Savannah	POSITION_JUMP; SPEED_ANOMALY; ZIGZAG
August 2024	17	CRITICAL	0.9500	Savannah	SPEED_ANOMALY; ZIGZAG; POSITION_JUMP
September 2024	5	HIGH	0.8682	Savannah	SPEED_ANOMALY; POSITION_JUMP
October 2024	16	CRITICAL	0.9500	Jacksonville	SPEED_ANOMALY; ZIGZAG; POSITION_JUMP
November 2024	18	HIGH	0.8557	Savannah	SPEED_ANOMALY; POSITION_JUMP; ZIGZAG
December 2024	17	CRITICAL	0.9500	Jacksonville	POSITION_JUMP; SPEED_ANOMALY; ZIGZAG

Activity Map

Detection events plotted · Color-coded by alert type · Drag to pan · Scroll to zoom

● Speed Anomaly ● Position Jump ● Zigzag ● Dark Vessel ● Rendezvous

Threat Intelligence

Analytical confidence: HIGH · Multi-indicator assessment

Threat Indicators Matrix

Indicator	Status	Evidence	Confidence
AIS Blackout / Dark Vessel	NOT DETECTED	—	LOW
GPS Spoofing / Position Jump	CONFIRMED	32 jumps · max 3650.3km	CRITICAL
Velocity Fraud / Speed Anomaly	CONFIRMED	53 events · max 102.2 kn	CRITICAL
Evasion Navigation / Zigzag	CONFIRMED	27 events · max COG std 146.4°	HIGH
Ship-to-Ship Rendezvous	NOT DETECTED	—	LOW
Multi-Port Operations	CONFIRMED	7 unique ports	HIGH

Operational Profile

Primary AO

Savannah and surrounding maritime zone

Active Period

12 months of continuous alert activity in 2024

Alert Density

156 detections across 112 individual events (avg 13.0/month)

Active Techniques

⊕ POS JUMP ⟳ ZIGZAG ⚡ SPEED

Threat Category

High-Confidence AIS Manipulation — Multiple confirmed evasion techniques

TTP Analysis

Tactics, Techniques & Procedures — Maritime ATT&CK Framework

MAR-T001

RTE-ANO-001

Velocity Fraud

AIS SOG field manipulation to broadcast impossible speeds up to 102.2 kn. Corrupts automated tracking algorithms and creates false movement vectors. Count: 53 events.

HIGH CONFIDENCE
53 events

MAR-T002

AIS-MAN-003

GPS Spoofing

GPS coordinate spoofing — AIS positions fabricated at impossible locations. Max jump: 3650.3km. Implies deliberate identity concealment. Count: 32 events.

HIGH CONFIDENCE
32 events

MAR-T003

RTE-ANO-005

Evasion Navigation

Erratic COG changes exceeding 50° threshold (max 146.4°). Consistent with surveillance evasion or at-anchor AIS manipulation. Count: 27 events.

HIGH CONFIDENCE
27 events

Risk Analysis

Composite risk scoring · Weighted indicator model · Quantus v2.4

Composite Score

0.9500

CRITICAL

Avg Detection Score

0.8946

Global Rank

#119

of 69,461 vessels

Weighted Indicator Scoring

Formula: (Dark×3) + (Rendezvous×4) + (PosJump×2) + (Speed×1) + (Zigzag×0.5) + (MaxScore×50)

Indicator	Count	Weight	Contribution
DARK_VESSEL	0	×3	0.0
RENDEZVOUS	0	×4	0.0
POSITION_JUMP	32	×2	64.0
SPEED_ANOMALY	53	×1	53.0
ZIGZAG	27	×0.5	13.5
MaxSingleScore	0.9500	×50	47.5
COMPOSITE TOTAL	Normalized [0,1]		0.9500 CRITICAL

⚡ Speed Anomaly Detections

Indicator: RTE-ANO-001 · 53 events · Max: 102.2 kn

AIS SOG FRAUD

Speed anomaly events are triggered when AIS Speed Over Ground (SOG) exceeds the 30-knot detection threshold. A4 ANCHOR BARGE reports speeds up to 102.2 kn — consistent with deliberate AIS SOG field manipulation to corrupt tracking algorithms.

Total Events

53

Max Reported SOG

102.2 kn

Indicator ID

RTE-ANO-001

Speed Anomaly Events (Top 50 by score)

Date	Max SOG (kn)	Score	Severity	Port	Coordinates

⊕ Position Jump Detections

Indicator: AIS-MAN-003 · 32 events · Max jump: 3,650 km

GPS SPOOFING

Position jumps confirm GPS coordinate spoofing — AIS positions fabricated at impossible locations. A4 ANCHOR BARGE has 32 confirmed position jumps with maximum displacement of 3,650 km.

Total Events

32

Max Jump Distance

3,650 km

Indicator ID

AIS-MAN-003

Position Jump Events (Top 50 by distance)

Date	Jump (km)	Implied Speed (kn)	Score	Severity	Spoofed-To Port	Coordinates

⟳ Zigzag / Erratic Navigation

Indicator: RTE-ANO-005 · 27 events · Max COG std: 146.4°

EVASION PATTERN

Zigzag events are triggered when course-over-ground (COG) standard deviation exceeds 50°. A4 ANCHOR BARGE records COG deviations up to 146.4° — consistent with surveillance evasion maneuvers or at-anchor AIS noise manipulation.

Total Events

27

Max COG Std Dev

146.4°

Threshold

50°

Zigzag Events (Top 50 by COG deviation)

Date	COG Std Dev (°)	Score	Severity	Port	Coordinates

Port History

7 distinct port areas · US primary flag state

Complete Port Detection Summary

Port	Country	Detections	Avg Score	Avg Dist NM	Risk
Savannah	🇺🇸	83	0.7629	23.0	STANDARD
Charleston	🇺🇸	13	0.7939	75.5	STANDARD
Wilmington NC	🇺🇸	6	0.7603	190.6	STANDARD
Jacksonville	🇺🇸	5	0.7635	52.9	STANDARD
Norfolk	🇺🇸	3	0.8361	231.3	STANDARD
Port Canaveral	🇺🇸	1	0.9500	61.6	STANDARD
Vancouver	🇨🇦	1	0.9500	633.8	STANDARD

🇺🇸 Savannah — Port Profile

83 detections · Avg score 0.7629 · Avg distance 23.0 NM

LOW RISK

Total Detections

83

Primary port of operation

Avg Alert Score

0.7629

Avg Distance NM

23.0

Port proximity zone

Detection Types at Savannah

SPEED_ANOMALY

37

ZIGZAG

24

POSITION_JUMP

22

Coordinates: 32.083°N, 81.100°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

83 of 112 total detections (74.1%)

Avg Distance from Port

23.0 NM — consistent with port proximity operations

🇺🇸 Charleston — Port Profile

13 detections · Avg score 0.7939 · Avg distance 75.5 NM

LOW RISK

Total Detections

13

Secondary port

Avg Alert Score

0.7939

Avg Distance NM

75.5

Port proximity zone

Detection Types at Charleston

SPEED_ANOMALY

8

POSITION_JUMP

4

ZIGZAG

1

Coordinates: 32.776°N, 79.931°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

13 of 112 total detections (11.6%)

Avg Distance from Port

75.5 NM — consistent with port proximity operations

🇺🇸 Wilmington NC — Port Profile

6 detections · Avg score 0.7603 · Avg distance 190.6 NM

LOW RISK

Total Detections

6

Secondary port

Avg Alert Score

0.7603

Avg Distance NM

190.6

Port proximity zone

Detection Types at Wilmington NC

POSITION_JUMP

3

SPEED_ANOMALY

3

Coordinates: 34.235°N, 77.948°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

6 of 112 total detections (5.4%)

Avg Distance from Port

190.6 NM — consistent with port proximity operations

🇺🇸 Jacksonville — Port Profile

5 detections · Avg score 0.7635 · Avg distance 52.9 NM

LOW RISK

Total Detections

5

Secondary port

Avg Alert Score

0.7635

Avg Distance NM

52.9

Port proximity zone

Detection Types at Jacksonville

POSITION_JUMP

3

SPEED_ANOMALY

1

ZIGZAG

1

Coordinates: 30.332°N, 81.660°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

5 of 112 total detections (4.5%)

Avg Distance from Port

52.9 NM — consistent with port proximity operations

🇺🇸 Norfolk — Port Profile

3 detections · Avg score 0.8361 · Avg distance 231.3 NM

LOW RISK

Total Detections

3

Secondary port

Avg Alert Score

0.8361

Avg Distance NM

231.3

Possible spoofed coords

Detection Types at Norfolk

SPEED_ANOMALY

2

ZIGZAG

1

Coordinates: 36.847°N, 76.293°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

3 of 112 total detections (2.7%)

Avg Distance from Port

231.3 NM — anomalously high, suggests spoofed coordinates

🇺🇸 Port Canaveral — Port Profile

1 detections · Avg score 0.9500 · Avg distance 61.6 NM

LOW RISK

Total Detections

1

Secondary port

Avg Alert Score

0.9500

Avg Distance NM

61.6

Port proximity zone

Detection Types at Port Canaveral

SPEED_ANOMALY

1

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

1 of 112 total detections (0.9%)

Avg Distance from Port

61.6 NM — consistent with port proximity operations

🇨🇦 Vancouver — Port Profile

1 detections · Avg score 0.9500 · Avg distance 633.8 NM

LOW RISK

Total Detections

1

Secondary port

Avg Alert Score

0.9500

Avg Distance NM

633.8

Possible spoofed coords

Detection Types at Vancouver

SPEED_ANOMALY

1

Coordinates: 49.283°N, 123.120°W

Port Intelligence Notes

Port Country

🇨🇦 CA

Risk Classification

LOW — Standard port monitoring applies

Detection Share

1 of 112 total detections (0.9%)

Avg Distance from Port

633.8 NM — anomalously high, suggests spoofed coordinates

Ownership Intelligence

MMSI registry · Flag state analysis · Beneficial ownership investigation

Vessel Name

A4 ANCHOR BARGE

MMSI

338411695

Flag State (MMSI-derived)

🇺🇸 US

MID Code

338 → 🇺🇸 US

Primary Port

Savannah

Detection Period

12 months (2024)

Registered Owner

Pending registry lookup

Beneficial Owner

Requires FinCEN CDD query

OFAC SDN Status

Pending cross-reference

Recommended Action

Physical inspection + full registry query

Vessel Type Analysis

AIS declared type · Physical capability vs. observed behavior

Type Mismatch Assessment

AIS Declared Type

vessel_type=37 (Pleasure Craft)

Behavior Consistency

INCONSISTENT — year-round multi-port operations with 156 anomalous events are not consistent with pleasure craft use

Speed Capability

Reported 102.2 kn — physically impossible for Type 37 (max ~45 kn high-performance)

Inspection Priority

HIGH — Recommend USCG/CBSA physical boarding and documentation review

Applicable Statutes

47 C.F.R. § 80.953 (AIS falsification) · 33 C.F.R. § 164.46 (AIS carriage) · 21 U.S.C. § 955 (maritime drug law)