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AS81

NCREN

MCNC

Registry

Authoritative registration data

AS number
81
Name
NCREN
Organisation
MCNC
Country
—
RIR
ARIN
Registered
Source:asn:rdap retrieved

IPv4 prefixes

135

IPv6 prefixes

4

Total announced

139

Announced prefixes

Observed in BGP by route collectors, not a registry allocation list

Prefixes announced by AS81
204.84.0.0/15 IPv4 /15 not checked
128.109.0.0/16 IPv4 /16 not checked
152.10.0.0/16 IPv4 /16 not checked
152.11.0.0/16 IPv4 /16 not checked
152.12.0.0/16 IPv4 /16 not checked
152.18.0.0/16 IPv4 /16 not checked
152.20.0.0/16 IPv4 /16 not checked
152.21.0.0/16 IPv4 /16 not checked
152.22.0.0/16 IPv4 /16 not checked
152.26.0.0/16 IPv4 /16 not checked
152.27.0.0/16 IPv4 /16 not checked
152.28.0.0/16 IPv4 /16 not checked
152.29.0.0/16 IPv4 /16 not checked
152.30.0.0/16 IPv4 /16 not checked
152.35.0.0/16 IPv4 /16 not checked
152.4.0.0/16 IPv4 /16 not checked
152.40.0.0/16 IPv4 /16 not checked
152.45.0.0/16 IPv4 /16 not checked
152.46.0.0/16 IPv4 /16 not checked
152.47.0.0/16 IPv4 /16 not checked
152.48.0.0/16 IPv4 /16 not checked
152.49.0.0/16 IPv4 /16 not checked
152.54.0.0/16 IPv4 /16 not checked
152.6.0.0/16 IPv4 /16 not checked
152.60.0.0/16 IPv4 /16 not checked
152.8.0.0/16 IPv4 /16 not checked
152.9.0.0/16 IPv4 /16 not checked
198.85.0.0/16 IPv4 /16 not checked
198.86.0.0/16 IPv4 /16 not checked
152.32.0.0/18 IPv4 /18 not checked
152.38.0.0/18 IPv4 /18 not checked
152.42.64.0/18 IPv4 /18 not checked
204.85.192.0/18 IPv4 /18 not checked
152.38.160.0/19 IPv4 /19 not checked
152.38.224.0/19 IPv4 /19 not checked
152.38.64.0/19 IPv4 /19 not checked
206.211.64.0/19 IPv4 /19 not checked
152.38.192.0/20 IPv4 /20 not checked
152.38.208.0/20 IPv4 /20 not checked
152.54.0.0/20 IPv4 /20 not checked
204.84.80.0/20 IPv4 /20 not checked
152.22.32.0/21 IPv4 /21 not checked
152.22.40.0/21 IPv4 /21 not checked
152.22.48.0/21 IPv4 /21 not checked
152.22.64.0/21 IPv4 /21 not checked
152.22.72.0/21 IPv4 /21 not checked
152.22.80.0/21 IPv4 /21 not checked
152.46.16.0/21 IPv4 /21 not checked
204.84.112.0/21 IPv4 /21 not checked
152.30.92.0/22 IPv4 /22 not checked
152.46.252.0/22 IPv4 /22 not checked
198.86.244.0/22 IPv4 /22 not checked
192.101.22.0/23 IPv4 /23 not checked
192.154.76.0/23 IPv4 /23 not checked
152.26.16.0/24 IPv4 /24 not checked
152.26.208.0/24 IPv4 /24 not checked
152.26.209.0/24 IPv4 /24 not checked
152.26.210.0/24 IPv4 /24 not checked
152.26.211.0/24 IPv4 /24 not checked
152.26.212.0/24 IPv4 /24 not checked
152.26.213.0/24 IPv4 /24 not checked
152.26.44.0/24 IPv4 /24 not checked
152.26.60.0/24 IPv4 /24 not checked
152.26.69.0/24 IPv4 /24 not checked
152.27.12.0/24 IPv4 /24 not checked
152.28.1.0/24 IPv4 /24 not checked
152.30.10.0/24 IPv4 /24 not checked
152.30.92.0/24 IPv4 /24 not checked
152.38.17.0/24 IPv4 /24 not checked
152.38.18.0/24 IPv4 /24 not checked
152.45.1.0/24 IPv4 /24 not checked
152.45.10.0/24 IPv4 /24 not checked
152.45.11.0/24 IPv4 /24 not checked
152.45.15.0/24 IPv4 /24 not checked
152.45.2.0/24 IPv4 /24 not checked
152.45.20.0/24 IPv4 /24 not checked
152.45.3.0/24 IPv4 /24 not checked
152.45.4.0/24 IPv4 /24 not checked
152.45.5.0/24 IPv4 /24 not checked
152.45.6.0/24 IPv4 /24 not checked
152.45.8.0/24 IPv4 /24 not checked
152.45.9.0/24 IPv4 /24 not checked
152.46.1.0/24 IPv4 /24 not checked
152.46.12.0/24 IPv4 /24 not checked
152.46.13.0/24 IPv4 /24 not checked
152.46.14.0/24 IPv4 /24 not checked
152.46.15.0/24 IPv4 /24 not checked
152.46.2.0/24 IPv4 /24 not checked
152.46.24.0/24 IPv4 /24 not checked
152.46.25.0/24 IPv4 /24 not checked
152.46.26.0/24 IPv4 /24 not checked
152.46.27.0/24 IPv4 /24 not checked
152.46.28.0/24 IPv4 /24 not checked
152.46.29.0/24 IPv4 /24 not checked
152.46.3.0/24 IPv4 /24 not checked
152.46.30.0/24 IPv4 /24 not checked
152.46.31.0/24 IPv4 /24 not checked
152.46.32.0/24 IPv4 /24 not checked
152.46.33.0/24 IPv4 /24 not checked
152.46.34.0/24 IPv4 /24 not checked
152.46.35.0/24 IPv4 /24 not checked
152.46.36.0/24 IPv4 /24 not checked
152.46.37.0/24 IPv4 /24 not checked
152.46.38.0/24 IPv4 /24 not checked
152.46.39.0/24 IPv4 /24 not checked
152.46.4.0/24 IPv4 /24 not checked
152.46.42.0/24 IPv4 /24 not checked
152.46.43.0/24 IPv4 /24 not checked
152.46.44.0/24 IPv4 /24 not checked
152.46.45.0/24 IPv4 /24 not checked
152.46.47.0/24 IPv4 /24 not checked
152.46.48.0/24 IPv4 /24 not checked
152.46.5.0/24 IPv4 /24 not checked
152.46.6.0/24 IPv4 /24 not checked
152.46.7.0/24 IPv4 /24 not checked
152.46.8.0/24 IPv4 /24 not checked
152.46.9.0/24 IPv4 /24 not checked
152.60.4.0/24 IPv4 /24 not checked
185.83.159.0/24 IPv4 /24 not checked
192.101.21.0/24 IPv4 /24 not checked
192.101.22.0/24 IPv4 /24 not checked
192.101.24.0/24 IPv4 /24 not checked
192.137.210.0/24 IPv4 /24 not checked
192.154.33.0/24 IPv4 /24 not checked
192.154.43.0/24 IPv4 /24 not checked
192.154.48.0/24 IPv4 /24 not checked
192.154.55.0/24 IPv4 /24 not checked
192.154.58.0/24 IPv4 /24 not checked
192.154.60.0/24 IPv4 /24 not checked
192.154.61.0/24 IPv4 /24 not checked
192.154.66.0/24 IPv4 /24 not checked
192.154.95.0/24 IPv4 /24 not checked
192.189.244.0/24 IPv4 /24 not checked
204.84.120.0/24 IPv4 /24 not checked
206.107.110.0/24 IPv4 /24 not checked
2600:2700::/28 IPv6 /28 not checked
2610:28::/32 IPv6 /32 not checked
2602:f64d::/40 IPv6 /40 not checked
2602:f6b8::/40 IPv6 /40 not checked

No rows match “”.

Showing – of

Source:ripestat:announced-prefixes observed

Internet Exchanges

Exchanges where this network has a listed peering LAN connection

No Internet Exchange memberships found

The exchange directory has no current membership records for this AS.

Source:peeringdb retrieved

Exchange membership means the network has a listed connection; it does not prove peering with other members.

Observed adjacencies

Networks seen next to AS81 in BGP paths by route collectors.

Source:ripestat:asn-neighbours observed

Observed upstreams

7 networks seen before AS81 in AS paths

Observed upstreams
Families
AS174 COGENT-174 6,499 40,477
v4 v6
AS3356 LEVEL3 4,368 34,110
v4 v6
AS11426 TWC-11426-CAROLINAS 689 9,631
v4
AS11164 533 2,588
v4 v6
AS7018 709 1,702
v4 v6
AS11537 212 1,528
v4 v6
AS6461 ZAYO-6461 231 334
v4

No rows match “”.

Showing – of

Observed downstreams

37 networks seen after AS81 in AS paths

Observed downstreams
Families
AS46255 282 11,315
v4
AS19413 478 6,361
v4
AS36850 774 3,762
v4 v6
AS6559 586 3,049
v4
AS13371 684 2,370
v4 v6
AS11442 577 1,730
v4 v6
AS396028 406 1,595
v4
AS10952 550 1,039
v4
AS19718 685 1,010
v4 v6
AS398580 211 862
v4
AS396391 269 680
v4
AS53785 280 679
v4
AS396978 431 650
v4 v6
AS19161 272 619
v4
AS53384 330 507
v4 v6
AS395465 268 388
v4
AS32417 269 341
v4
AS46963 269 340
v4
AS40245 268 340
v4
AS22862 267 340
v4
AS394407 266 340
v4
AS399050 262 340
v4
AS399407 268 339
v4
AS18538 266 339
v4
AS394165 266 339
v4
AS400959 262 338
v4
AS399708 261 337
v4
AS26741 264 336
v4
AS32711 261 336
v4
AS393875 UMO-AS 258 336
v4
AS13862 259 335
v4
AS393824 252 333
v4
AS46794 247 319
v4
AS399565 189 231
v4
AS20197 12 36
v4
AS33401 11 23
v4
AS396837 8 9
v4

No rows match “”.

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Note:
These are observed adjacencies derived from BGP path data, not confirmed commercial relationships. A network appearing before another in an AS path does not establish that it is a paying transit customer, a settlement free peer, or anything else contractual.