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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

132

IPv6 prefixes

4

Total announced

136

Announced prefixes

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

Prefixes announced by AS81
204.84.0.0/15 IPv4 /15 RPKI valid
128.109.0.0/16 IPv4 /16 RPKI valid
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 RPKI not found
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 RPKI valid
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 RPKI valid
152.48.0.0/16 IPv4 /16 RPKI valid
152.49.0.0/16 IPv4 /16 RPKI valid
152.54.0.0/16 IPv4 /16 RPKI valid
152.6.0.0/16 IPv4 /16 RPKI not found
152.60.0.0/16 IPv4 /16 RPKI valid
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 RPKI valid
152.32.0.0/18 IPv4 /18 not checked
152.38.0.0/18 IPv4 /18 RPKI not found
152.42.64.0/18 IPv4 /18 RPKI not found
204.85.192.0/18 IPv4 /18 RPKI valid
152.38.160.0/19 IPv4 /19 not checked
152.38.224.0/19 IPv4 /19 RPKI not found
152.38.64.0/19 IPv4 /19 RPKI not found
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 RPKI valid
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 RPKI valid
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 RPKI valid
152.46.16.0/21 IPv4 /21 not checked
204.84.112.0/21 IPv4 /21 RPKI valid
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
152.26.208.0/24 IPv4 /24 not checked
152.26.209.0/24 IPv4 /24 RPKI valid
152.26.210.0/24 IPv4 /24 not checked
152.26.211.0/24 IPv4 /24 RPKI valid
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 RPKI valid
152.26.69.0/24 IPv4 /24 RPKI valid
152.27.12.0/24 IPv4 /24 RPKI valid
152.28.1.0/24 IPv4 /24 RPKI valid
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 RPKI not found
152.45.1.0/24 IPv4 /24 not checked
152.45.10.0/24 IPv4 /24 RPKI valid
152.45.11.0/24 IPv4 /24 not checked
152.45.15.0/24 IPv4 /24 RPKI valid
152.45.2.0/24 IPv4 /24 RPKI valid
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 RPKI valid
152.45.8.0/24 IPv4 /24 RPKI valid
152.45.9.0/24 IPv4 /24 RPKI valid
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 RPKI valid
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 RPKI valid
152.46.26.0/24 IPv4 /24 not checked
152.46.27.0/24 IPv4 /24 RPKI valid
152.46.28.0/24 IPv4 /24 not checked
152.46.29.0/24 IPv4 /24 RPKI valid
152.46.3.0/24 IPv4 /24 RPKI valid
152.46.30.0/24 IPv4 /24 not checked
152.46.31.0/24 IPv4 /24 RPKI valid
152.46.32.0/24 IPv4 /24 not checked
152.46.33.0/24 IPv4 /24 RPKI valid
152.46.34.0/24 IPv4 /24 RPKI valid
152.46.35.0/24 IPv4 /24 RPKI valid
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 RPKI valid
152.46.42.0/24 IPv4 /24 RPKI valid
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 RPKI valid
152.46.47.0/24 IPv4 /24 not checked
152.46.48.0/24 IPv4 /24 RPKI valid
152.46.5.0/24 IPv4 /24 not checked
152.46.6.0/24 IPv4 /24 RPKI valid
152.46.7.0/24 IPv4 /24 RPKI valid
152.46.8.0/24 IPv4 /24 RPKI valid
152.46.9.0/24 IPv4 /24 not checked
152.60.4.0/24 IPv4 /24 RPKI valid
185.83.159.0/24 IPv4 /24 not checked
192.101.21.0/24 IPv4 /24 RPKI valid
192.101.22.0/24 IPv4 /24 not checked
192.101.24.0/24 IPv4 /24 RPKI valid
192.137.210.0/24 IPv4 /24 RPKI not found
192.154.33.0/24 IPv4 /24 RPKI not found
192.154.43.0/24 IPv4 /24 not checked
192.154.48.0/24 IPv4 /24 RPKI valid
192.154.55.0/24 IPv4 /24 RPKI valid
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 RPKI not found
192.154.66.0/24 IPv4 /24 RPKI valid
192.154.95.0/24 IPv4 /24 not checked
192.189.244.0/24 IPv4 /24 RPKI not found
204.84.120.0/24 IPv4 /24 not checked
206.107.110.0/24 IPv4 /24 RPKI not found
2600:2700::/28 IPv6 /28 RPKI valid
2610:28::/32 IPv6 /32 RPKI valid
2602:f64d::/40 IPv6 /40 RPKI valid
2602:f6b8::/40 IPv6 /40 not checked

No rows match “”.

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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 5,466 31,986
v4 v6
AS3356 LEVEL3 4,176 29,401
v4 v6
AS11426 TWC-11426-CAROLINAS 562 7,448
v4
AS11164 INTERNET2-I2PX 460 2,164
v4 v6
AS7018 ATT-INTERNET4 592 1,435
v4 v6
AS11537 INTERNET2-RESEARCH-EDU 191 1,364
v4 v6
AS6461 ZAYO-6461 242 473
v4

No rows match “”.

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Observed downstreams

39 networks seen after AS81 in AS paths

Observed downstreams
Families
AS46255 CHARLOTTE-MECKLENBURG-SCHOOLS-NC 248 9,246
v4
AS19413 ROANOKE-CONNECT-ASN-1 429 5,188
v4
AS36850 UNC-CH 657 3,052
v4 v6
AS6559 NCIH 505 2,494
v4
AS13371 DUKE-INTERCHANGE 598 1,923
v4 v6
AS11442 NCSU 495 1,404
v4 v6
AS396028 VIDANTHEALTH 358 1,266
v4
AS10952 ECU-AS 485 850
v4
AS398580 QUEENS-UNIV-CLT-01 194 841
v4
AS19718 NCNI 590 818
v4 v6
AS396391 GUILFORD-COLLEGE 230 556
v4
AS53785 UNC-GREENSBORO 238 554
v4
AS33401 CPCC 230 550
v4
AS396978 ORANGE-WATER-SEWER-AUTHORITY 372 523
v4 v6
AS19161 APOG-UNCC-NORTH 236 506
v4
AS53384 UNCC-AS 304 441
v4 v6
AS395465 APOG-UNCC-SOUTH 238 318
v4
AS46963 CITY-WINSTON-SALEM-AS 231 278
v4
AS399407 SALEM-AC-01 231 278
v4
AS22862 CLINTON-CITY-SCHOOLS 230 278
v4
AS40245 WAKE-FOREST-UNIVERSITY 229 278
v4
AS394165 COGNC 229 278
v4
AS32417 ELONU-AS 228 278
v4
AS394407 CCCC-NC 228 278
v4
AS399050 ROW-CAB-01 226 278
v4
AS399708 NCWC-ARIN-ASN 227 277
v4
AS400959 CARYNC 227 277
v4
AS18538 WCPSS-BOE 227 276
v4
AS393875 UMO-AS 227 276
v4
AS13862 NCSU-SNARE 226 275
v4
AS32711 WCGNC 221 274
v4
AS393824 APOG-LENOIR-RHYNE 221 272
v4
AS46794 PENDER COUNTY SCHOOLS 211 263
v4
AS399565 188 218
v4
AS26407 CAROLINA-DIGITAL-PHONE 48 215
v4
AS47098 SAMPSON COUNTY SCHOOLS 128 155
v4
AS20197 NCRC-KANNAPOLIS 11 33
v4
AS396837 SEAA18 5 6
v4
AS26741 CEMC 1 1
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.