[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat Nov 9 22:05:52 UTC 2024
IPv4 R&E Routing Table Report 22:05 GMT Sat 09 Nov, 2024
IPv4 BGP Table (R&E) as seen at CENIC.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/CENIC/
Analysis Summary
----------------
BGP routing table entries examined: 20051
Prefixes after maximum aggregation (per Origin AS): 11450
Deaggregation factor: 1.75
Unique aggregates announced (without unneeded subnets): 12759
Number of IPv4 prefixes with a valid ROA: 8109
Number of IPv4 prefixes with an invalid ROA: 10
Number of IPv4 prefixes with no ROA: 11932
Total ASes present in the Internet Routing Table: 2813
Prefixes per ASN: 7.13
Origin-only ASes present in the Internet Routing Table: 2435
Origin ASes announcing only one prefix: 1071
Transit ASes present in the Internet Routing Table: 378
Transit-only ASes present in the Internet Routing Table: 64
Paths with bogon ASNs present in the IPv4 Routing Table: 5
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 27
Max AS path prepend of ASN (138136) 20
Prefixes from unregistered ASNs in the Routing Table: 4
Number of instances of unregistered ASNs: 4
Number of 32-bit ASNs allocated by the RIRs: 45822
Number of 32-bit ASNs visible in the Routing Table: 692
Prefixes from 32-bit ASNs in the Routing Table: 1890
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 0
Number of addresses announced to Internet: 271603456
Equivalent to 16 /8s, 48 /16s and 87 /24s
Percentage of available address space announced: 7.3
Percentage of allocated address space announced: 5.7
Percentage of available address space allocated: 128.7
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 7468
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4714
Total APNIC prefixes after maximum aggregation: 2307
APNIC Deaggregation factor: 2.04
Prefixes being announced from the APNIC address blocks: 484
Unique aggregates announced from the APNIC address blocks: 400
APNIC Region origin ASes present in the Internet Routing Table: 584
APNIC Prefixes per ASN: 0.83
APNIC Region origin ASes announcing only one prefix: 244
APNIC Region transit ASes present in the Internet Routing Table: 60
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 27
Number of APNIC region 32-bit ASNs visible in the Routing Table: 232
Number of APNIC addresses announced to Internet: 7530752
Equivalent to 0 /8s, 114 /16s and 233 /24s
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-64098, 64297-64395, 131072-153913
APNIC Address Blocks 43/8, 45/8, 146/8, 150/8, 160/8, 163/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 9295
Total ARIN prefixes after maximum aggregation: 5591
ARIN Deaggregation factor: 1.66
Prefixes being announced from the ARIN address blocks: 4651
Unique aggregates announced from the ARIN address blocks: 3367
ARIN Region origin ASes present in the Internet Routing Table: 1292
ARIN Prefixes per ASN: 3.60
ARIN Region origin ASes announcing only one prefix: 446
ARIN Region transit ASes present in the Internet Routing Table: 158
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 213
Number of ARIN addresses announced to Internet: 28566272
Equivalent to 1 /8s, 179 /16s and 227 /24s
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 64198-64296, 393216-402332
ARIN Address Blocks 66/8, 139/8, 144/8, 149/8, 162/8, 192/8, 198/8,
199/8, 204/8, 205/8, 207/8, 208/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3540
Total RIPE prefixes after maximum aggregation: 2842
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 893
Unique aggregates announced from the RIPE address blocks: 851
RIPE Region origin ASes present in the Internet Routing Table: 669
RIPE Prefixes per ASN: 1.33
RIPE Region origin ASes announcing only one prefix: 300
RIPE Region transit ASes present in the Internet Routing Table: 107
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 158
Number of RIPE addresses announced to Internet: 11207680
Equivalent to 0 /8s, 171 /16s and 4 /24s
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 64396-64495
196608-216475
RIPE Address Blocks 152/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1443
Total LACNIC prefixes after maximum aggregation: 538
LACNIC Deaggregation factor: 2.68
Prefixes being announced from the LACNIC address blocks: 251
Unique aggregates announced from the LACNIC address blocks: 196
LACNIC Region origin ASes present in the Internet Routing Table: 154
LACNIC Prefixes per ASN: 1.63
LACNIC Region origin ASes announcing only one prefix: 52
LACNIC Region transit ASes present in the Internet Routing Table: 22
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 14
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 62
Number of LACNIC addresses announced to Internet: 921600
Equivalent to 0 /8s, 14 /16s and 16 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 128/8, 216/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1055
Total AfriNIC prefixes after maximum aggregation: 168
AfriNIC Deaggregation factor: 6.28
Prefixes being announced from the AfriNIC address blocks: 82
Unique aggregates announced from the AfriNIC address blocks: 49
AfriNIC Region origin ASes present in the Internet Routing Table: 48
AfriNIC Prefixes per ASN: 1.71
AfriNIC Region origin ASes announcing only one prefix: 29
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 5.4
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27
Number of AfriNIC addresses announced to Internet: 604160
Equivalent to 0 /8s, 9 /16s and 56 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 161/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 590 2170 464 SINET-AS Research Organization of Informa
7497 447 180 24 CSTNET-AS-AP Computer Network Information
1237 191 74 145 KREONET-AS-KR KISTI, KR
58647 180 18 2 KAGAWAU-AS Kagawa University, JP
7575 172 329 115 AARNET-AS-AP Australian Academic and Rese
55824 131 18 18 NKN-CORE-NW NKN Core Network, IN
4538 130 4192 72 ERX-CERNET-BKB China Education and Resear
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
4621 70 37 11 UNINET-AS-AP UNINET-, TH
2697 60 4 35 ERX-ERNET-AS Education and Research Netwo
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8075 682 16014 573 MICROSOFT-CORP-MSN-AS-BLOCK, US
668 205 648 174 DNIC-AS-00668, US
376 201 162 150 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
2920 175 34 7 LACOE, US
2152 154 507 97 CENIC-2152, US
18558 140 18 4 NETBLK-RCOEK, US
81 134 517 33 NCREN, US
270 117 328 81 AS270, US
293 110 33 14 ESNET, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
680 281 1899 248 DFN Verein zur Foerderung eines Deutschen
786 186 1767 183 JANET Jisc Services Limited, GB
8895 133 24 5 ISU Internet Services Unit ISU, SA
559 114 533 104 SWITCH Peering requests: peering at switch.c
1103 97 1759 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 93 26 73 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnolog
553 78 462 78 BELWUE BelWue-Koordination, DE
3267 77 26 67 NIKS, RU
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1916 216 178 42 Rede Nacional de Ensino e Pesquisa, BR
28391 154 10 68 Universidad Juarez Autonoma de Tabasco, M
11340 110 25 53 Red Universitaria Nacional, CL
271640 66 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
61468 51 5 17 CEDIA, EC
2715 50 100 36 Fundacao Carlos Chagas Filho de Amparo a
19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR
4270 47 16 2 Red de Interconexion Universitaria, AR
28614 38 2 2 Fundacao Universidade Regional de Blumena
1251 37 31 26 FUNDACAO DE AMPARO A PESQUISA DO ESTADO S
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
36914 451 82 3 KENET-AS, KE
2018 381 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
37215 33 8 1 MAREN, MW
6879 24 2 9 ENSTINET-, EG
37074 15 8 2 UG-AS, GH
327700 15 16 1 MoRENet, MZ
37661 12 8 4 NRaE1-AS, NG
37501 11 49 6 UOFS, ZA
36982 8 33 8 UCT, ZA
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
8075 682 16014 573 MICROSOFT-CORP-MSN-AS-BLOCK, US
2907 590 2170 464 SINET-AS Research Organization of Informa
36914 451 82 3 KENET-AS, KE
7497 447 180 24 CSTNET-AS-AP Computer Network Information
2018 381 319 71 TENET-1, ZA
680 281 1899 248 DFN Verein zur Foerderung eines Deutschen
1916 216 178 42 Rede Nacional de Ensino e Pesquisa, BR
668 205 648 174 DNIC-AS-00668, US
376 201 162 150 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
36914 451 448 KENET-AS, KE
7497 447 423 CSTNET-AS-AP Computer Network Information Cente
2018 381 310 TENET-1, ZA
5786 197 196 UPRENET, PR
58647 180 178 KAGAWAU-AS Kagawa University, JP
1916 216 174 Rede Nacional de Ensino e Pesquisa, BR
2920 175 168 LACOE, US
18558 140 136 NETBLK-RCOEK, US
8895 133 128 ISU Internet Services Unit ISU, SA
2907 590 126 SINET-AS Research Organization of Information a
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
65208 PRIVATE 63.225.1.0/24 11570 AS11570, US
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
65208 PRIVATE 206.206.156.0/22 11570 AS11570, US
65208 PRIVATE 216.161.32.0/23 11570 AS11570, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:0 /9:1 /10:3 /11:7 /12:25
/13:31 /14:61 /15:157 /16:2213 /17:452 /18:477
/19:595 /20:882 /21:897 /22:1506 /23:1583 /24:11161
/25:0 /26:0 /27:0 /28:0 /29:0 /30:0
/31:0 /32:0
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8075 374 682 MICROSOFT-CORP-MSN-AS-BLOCK, US
7497 263 447 CSTNET-AS-AP Computer Network Information Center of Chinese Academy of Sciences CNIC-CAS, CN
5786 196 197 UPRENET, PR
28391 154 154 Universidad Juarez Autonoma de Tabasco, MX
58647 149 180 KAGAWAU-AS Kagawa University, JP
36914 127 451 KENET-AS, KE
55824 124 131 NKN-CORE-NW NKN Core Network, IN
2018 123 381 TENET-1, ZA
2920 123 175 LACOE, US
293 93 110 ESNET, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:2 2:1 4:2 5:16 6:4 8:2
12:1 13:30 14:92 23:10 24:3 31:1
35:8 37:8 38:10 40:1 41:159 42:11
44:5 45:57 46:5 47:1 49:10 50:6
52:6 59:19 60:6 61:3 62:16 63:38
64:51 65:4 66:58 67:46 68:18 69:28
70:2 71:1 72:8 74:59 76:42 77:10
78:3 79:10 80:12 81:26 82:7 83:7
84:5 85:45 86:5 87:1 89:11 91:48
92:4 93:13 94:6 95:3 96:5 97:1
98:2 101:1 102:12 103:341 104:79 107:2
108:11 109:4 111:21 113:6 114:24 116:9
117:61 118:33 119:23 121:27 122:8 123:8
124:42 125:5 128:57 129:37 130:96 131:69
132:65 133:154 134:178 135:4 136:197 137:55
138:65 139:6 140:36 141:4 142:56 143:27
144:31 145:6 146:137 147:65 148:196 149:13
150:46 151:11 152:141 153:14 154:39 155:70
156:133 157:29 158:32 159:119 160:31 161:25
162:34 163:66 164:17 165:50 166:3 167:29
168:120 169:7 170:108 171:1 172:2 173:8
175:16 176:1 177:6 178:2 179:13 180:16
182:11 184:7 185:84 186:3 187:21 188:14
189:2 190:18 191:13 192:1518 193:269 194:129
195:71 196:146 197:324 198:492 199:301 200:331
201:37 202:639 203:452 204:392 205:142 206:216
207:228 208:75 209:117 210:217 211:3 212:169
213:10 214:8 216:97 217:11 218:21 219:5
220:17 222:2 223:15
End of report
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