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FourD-AS

AS31463 · GB · RIPENCC
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2
Upstream providers
4
Downstream customers
36k
v4 addresses
16
v6 /32s

Provider History

Active Possible trial (<90d) Historical

Current Providers

Addr family: All IPv4 IPv6
Provider First Seen Last Seen Peers Confidence AF
VDATA
AS13009
 2024-09-01
1y 8mo
 2026-05-14
143 peers
AS209 AS680 AS999 AS1031 AS1299 AS2152 AS2500 AS2914 AS3214 AS3216 AS3257 AS3320 AS3491 AS3549 AS4128 AS4181 AS4641 AS5392 AS5394 AS5413 AS5580 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8529 AS8888 AS9002 AS12859 AS12956 AS12969 AS13030 AS13237 AS14041 AS14630 AS14907 AS15562 AS16276 AS16347 AS16552 AS17350 AS17660 AS19754 AS20080 AS20811 AS23367 AS23673 AS25091 AS25220 AS27986 AS28329 AS28824 AS28917 AS29479 AS30950 AS31554 AS32590 AS34927 AS35280 AS35600 AS35710 AS36924 AS38001 AS38726 AS39642 AS41095 AS42473 AS42541 AS45049 AS45489 AS46450 AS47147 AS47692 AS48112 AS48185 AS48237 AS48362 AS49028 AS49432 AS49434 AS49544 AS49605 AS50304 AS50628 AS50877 AS51185 AS52468 AS52873 AS53828 AS55720 AS57381 AS57821 AS57866 AS59414 AS60924 AS64475 AS132884 AS134823 AS138685 AS142289 AS150369 AS151704 AS197580 AS199524 AS199938 AS204092 AS205206 AS209823 AS210937 AS212317 AS215230 AS216285 AS262462 AS263009 AS263152 AS263541 AS264409 AS266213 AS267613 AS271253 AS398465
v4 v6
CUSTDC
AS50300
 2024-09-01
1y 8mo
 2026-05-14
77 peers
AS209 AS260 AS835 AS924 AS1031 AS1299 AS3257 AS3320 AS3491 AS3549 AS4775 AS5580 AS6453 AS6461 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8888 AS11039 AS12956 AS14315 AS14907 AS16276 AS17350 AS17660 AS19529 AS19754 AS20514 AS20811 AS24516 AS27986 AS32590 AS35710 AS37697 AS40864 AS48112 AS51185 AS52468 AS61832 AS64475 AS132884 AS134823 AS142289 AS151704 AS197580 AS199524 AS210937 AS212317 AS216285
v4 v6

Customers (4)

Addr family: All IPv4 IPv6
Customer Country First Seen Last Seen IPs Peers Confidence AF
BROOKLANDCOMP-AS
AS25546
 GB 2024-09-01
1y 8mo
 2026-05-14 768
109 peers
AS680 AS1031 AS1299 AS2152 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4181 AS4641 AS5392 AS5394 AS5413 AS5580 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8455 AS8529 AS8888 AS9002 AS12859 AS12956 AS13030 AS14041 AS14630 AS14907 AS15562 AS16276 AS16552 AS17350 AS17660 AS19754 AS20080 AS20514 AS20811 AS23367 AS23673 AS27986 AS28329 AS28917 AS30950 AS32590 AS34927 AS35280 AS35600 AS35710 AS37697 AS38001 AS38726 AS39642 AS41095 AS42473 AS42541 AS45049 AS45489 AS46450 AS47147 AS48112 AS48237 AS49434 AS49544 AS49605 AS51088 AS51185 AS52468 AS52873 AS53828 AS55720 AS57821 AS57866 AS59414 AS60924 AS64475 AS132884 AS134823 AS138685 AS142289 AS150369 AS151704 AS197580 AS199524 AS199938 AS210937 AS216285 AS262462 AS263009 AS263541 AS264409 AS266213 AS398465
v4 v6
vostel
AS35241
 GB 2024-09-01
1y 8mo
 2026-05-14 256
104 peers
AS209 AS1031 AS1299 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4181 AS4641 AS5394 AS5580 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8888 AS12859 AS12956 AS13030 AS14315 AS14907 AS15562 AS15692 AS16276 AS16552 AS17660 AS19754 AS20080 AS20514 AS20811 AS23367 AS27986 AS28917 AS29140 AS32590 AS35710 AS37697 AS38001 AS38726 AS40387 AS45049 AS45489 AS47147 AS48112 AS49434 AS49544 AS49605 AS51185 AS52468 AS53828 AS55720 AS57821 AS59414 AS64475 AS132884 AS134823 AS138685 AS142289 AS150369 AS151704 AS197580 AS199524 AS199938 AS210937 AS216285 AS398465
v4 v6
CENTRALNIC
AS42044
 GB 2024-09-01
1y 8mo
 2026-05-14 256
132 peers
AS680 AS1031 AS1299 AS2152 AS2500 AS2914 AS3257 AS3320 AS3491 AS3549 AS4128 AS4181 AS4641 AS5392 AS5394 AS5413 AS5580 AS6453 AS6730 AS6762 AS6830 AS7018 AS7768 AS8220 AS8529 AS8888 AS9002 AS12859 AS12956 AS13030 AS14041 AS14315 AS14630 AS14907 AS15562 AS16276 AS16552 AS17350 AS17660 AS19754 AS20080 AS20514 AS20811 AS23367 AS23673 AS27986 AS28329 AS28917 AS30950 AS32590 AS34927 AS35280 AS35600 AS35710 AS37697 AS38001 AS38726 AS39642 AS41095 AS42473 AS42541 AS45049 AS45489 AS46450 AS47147 AS48112 AS48237 AS49434 AS49544 AS49605 AS51185 AS52468 AS52873 AS53828 AS55720 AS57821 AS57866 AS59414 AS60924 AS64475 AS132884 AS134823 AS138685 AS142289 AS150369 AS151704 AS197580 AS199524 AS199938 AS210937 AS216285 AS262462 AS263009 AS263541 AS264409 AS266213 AS398465
v4 v6
KADFIRE
AS206976
 GB 2024-09-01
1y 8mo
 2026-05-14 768
109 peers
AS209 AS701 AS1273 AS1299 AS2914 AS3257 AS3491 AS5580 AS6453 AS6762 AS6830 AS7018 AS7768 AS8582 AS12956 AS17350 AS27986 AS31554 AS47147 AS48112 AS52468 AS52873 AS57866 AS199524 AS216285 AS262462 AS271253 AS328840 AS398465
v4 v6

Network Size

IPv4 and IPv6 prefixes originated over time

37
v4 prefixes
36k
v4 addresses
5
v6 prefixes
16
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
2026-05-09
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 580d
⇄
2026-04-22
Possible Trial
FourD-AS AS31463 → possible trial with CLOUDFLARENET-AS AS13335
Confidence: 60%
⇄
2026-03-28
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 538d
⇄
2026-03-17
Lost Transit
FourD-AS AS31463 → lost provider CLOUDFLARENET-AS AS13335
Confidence: 85% Duration: 3d
⇄
2026-03-14
New Transit
FourD-AS AS31463 → added provider CLOUDFLARENET-AS AS13335
Confidence: 90%
⇄
2025-11-01
Lost Transit
OCD-UK AS43408 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 425d
⇄
2025-08-07
Lost Transit
P1C-AS AS51926 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 339d
⇄
2025-07-18
Lost Transit
PEASOUP AS205106 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 319d
⇄
2025-07-18
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 285d
⇄
2025-06-26
Lost Transit
P1C-AS AS51926 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 297d
⇄
2025-06-26
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 263d
⇄
2025-06-12
Lost Transit
P1C-AS AS51926 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 283d
⇄
2025-06-12
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 249d
⇄
2025-02-21
Lost Transit
P1C-AS AS51926 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 172d
⇄
2025-02-21
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 138d
⇄
2025-02-02
Lost Transit
P1C-AS AS51926 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 153d
⇄
2025-02-02
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 119d
⇄
2025-01-25
Lost Transit
P1C-AS AS51926 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 145d
⇄
2025-01-25
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 111d
⇄
2025-01-09
Lost Transit
P1C-AS AS51926 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 129d
⇄
2025-01-09
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 95d
⇄
2024-11-14
Possible Trial
CUSTDC AS50300 → possible trial with FourD-AS AS31463
Confidence: 60%
⇄
2024-11-08
Lost Transit
P1C-AS AS51926 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 67d
⇄
2024-11-08
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 33d
⇄
2024-11-01
Possible Trial
P1C-AS AS51926 → possible trial with FourD-AS AS31463
Confidence: 60% Duration: 21d
⇄
2024-10-26
Lost Transit
P1C-AS AS51926 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 54d
⇄
2024-10-07
Lost Transit
CUSTDC AS50300 → lost provider FourD-AS AS31463
Confidence: 85% Duration: 1d
⇄
2024-10-06
New Transit
CUSTDC AS50300 → added provider FourD-AS AS31463
Confidence: 90%
⇄
2024-09-02
New Transit
KADFIRE AS206976 → added provider FourD-AS AS31463
Confidence: 90%
⇄
2024-09-02
New Transit
PEASOUP AS205106 → added provider FourD-AS AS31463
Confidence: 90%
⇄
2024-09-02
New Transit
P1C-AS AS51926 → added provider FourD-AS AS31463
Confidence: 90%
⇄
2024-09-02
New Transit
OCD-UK AS43408 → added provider FourD-AS AS31463
Confidence: 90%
⇄
2024-09-02
New Transit
CENTRALNIC AS42044 → added provider FourD-AS AS31463
Confidence: 90%
⇄
2024-09-02
New Transit
vostel AS35241 → added provider FourD-AS AS31463
Confidence: 90%
⇄
2024-09-02
New Transit
FourD-AS AS31463 → added provider CUSTDC AS50300
Confidence: 90%
⇄
2024-09-02
New Transit
FourD-AS AS31463 → added provider VDATA AS13009
Confidence: 90%
⇄
2024-09-02
New Transit
BROOKLANDCOMP-AS AS25546 → added provider FourD-AS AS31463
Confidence: 90%
⇄

Renewal Calendar

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

This data is available to subscribers.

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