CMSINTERNET

AS26271 · MNT-CMSI autnum AS26271 · US · ARIN

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2

Upstream providers

3

Downstream customers

32k

v4 addresses

0.3

v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Addr family: All IPv4 IPv6

Provider	First Seen	Last Seen	Peers	Confidence	AF
AS174 AS174	2024-09-01 1y 9mo	2026-06-12	205 peers AS209 AS2914 AS3214 AS3257 AS3491 AS3549 AS4128 AS5580 AS6453 AS6461 AS6830 AS7018 AS8582 AS12956 AS15562 AS15692 AS16276 AS17290 AS17660 AS48237 AS52873 AS55720 AS57866 AS132884 AS151704 AS197580 AS216285 AS262462 AS398465		v4 v6
AS6939 AS6939	2024-09-01 1y 9mo	2026-06-12	34 peers AS209 AS151704		v4 v6

Customers (3)

Addr family: All IPv4 IPv6

Customer	Country	First Seen	Last Seen	IPs	Peers	AF
AS33583 AS33583	US	2024-09-01 1y 9mo	2026-06-12	768	46 peers AS209 AS2914 AS3214 AS3491 AS3549 AS4128 AS6453 AS6461 AS6830 AS7018 AS12956 AS15562 AS15692 AS16276 AS17660 AS31554 AS52873 AS55720 AS57866 AS132884 AS151704 AS197580 AS199524 AS216285 AS262462 AS398465	v4 v6
CMC AS62968	US	2024-09-01 1y 9mo	2026-06-12	1.3k	173 peers AS174 AS209 AS1299 AS2914 AS3257 AS3549 AS4128 AS5580 AS6082 AS8582 AS15562 AS16276 AS17290 AS25160 AS55720 AS136557 AS199524 AS328840 AS398465	v4 v6
GLAA AS14691	US	2025-03-01 1y 3mo	2026-06-12	256	180 peers AS209 AS701 AS1273 AS1299 AS2914 AS3257 AS3491 AS5580 AS6453 AS6461 AS6762 AS6830 AS7018 AS7768 AS8582 AS12956 AS17290 AS17350 AS31554 AS32590 AS37468 AS47147 AS49028 AS52873 AS57866 AS151704 AS199524 AS216285 AS262462 AS271253 AS328840 AS328964 AS398465	v4 v6

Network Size

IPv4 and IPv6 prefixes originated over time

13

v4 prefixes

32k

v4 addresses

2

v6 prefixes

0.3

v6 /32s

Downstream Customers Over Time

Count of distinct downstream customers per snapshot date

Peering Links Over Time

Count of unclassified adjacencies per snapshot date

Event Log

All New Transit Lost Transit Possible Trial Renewal Approaching

2025-09-19

Lost Transit

GLAA AS14691 → lost provider CMSINTERNET AS26271

Confidence: 85% Duration: 201d

⇄

2025-06-09

New Transit

GLAA AS14691 → added provider CMSINTERNET AS26271

Confidence: 90%

⇄

2025-04-12

Possible Trial

GLAA AS14691 → possible trial with CMSINTERNET AS26271

Confidence: 60% Duration: 2d

⇄

2025-04-06

Lost Transit

GLAA AS14691 → lost provider CMSINTERNET AS26271

Confidence: 85% Duration: 35d

⇄

2025-03-02

New Transit

GLAA AS14691 → added provider CMSINTERNET AS26271

Confidence: 90%

⇄

2024-11-14

New Transit

AS33583 AS33583 → added provider CMSINTERNET AS26271

Confidence: 90%

⇄

2024-11-13

New Transit

CMSINTERNET AS26271 → added provider AS174 AS174

Confidence: 90%

⇄

2024-10-12

Possible Trial

CMSINTERNET AS26271 → possible trial with AS174 AS174

Confidence: 60% Duration: 1d

⇄

2024-10-11

Possible Trial

AS33583 AS33583 → possible trial with CMSINTERNET AS26271

Confidence: 60%

⇄

2024-10-06

Lost Transit

CMSINTERNET AS26271 → lost provider AS174 AS174

Confidence: 85% Duration: 34d

⇄

2024-10-05

Lost Transit

AS33583 AS33583 → lost provider CMSINTERNET AS26271

Confidence: 85% Duration: 33d

⇄

2024-09-02

New Transit

CMC AS62968 → added provider CMSINTERNET AS26271

Confidence: 90%

⇄

2024-09-02

New Transit

AS33583 AS33583 → added provider CMSINTERNET AS26271

Confidence: 90%

⇄

2024-09-02

New Transit

CMSINTERNET AS26271 → added provider AS6939 AS6939

Confidence: 90%

⇄

2024-09-02

New Transit

CMSINTERNET AS26271 → added provider AS174 AS174

Confidence: 90%

⇄

Renewal Calendar

Active providers first seen 11–13 months ago — possible annual contract renewals

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