[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Thu Sep 5 22:05:45 UTC 2024
IPv4 R&E Routing Table Report 22:05 GMT Thu 05 Sep, 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: 19925
Prefixes after maximum aggregation (per Origin AS): 11414
Deaggregation factor: 1.75
Unique aggregates announced (without unneeded subnets): 12702
Number of IPv4 prefixes with a valid ROA: 6997
Number of IPv4 prefixes with an invalid ROA: 14
Number of IPv4 prefixes with no ROA: 12912
Total ASes present in the Internet Routing Table: 2806
Prefixes per ASN: 7.10
Origin-only ASes present in the Internet Routing Table: 2436
Origin ASes announcing only one prefix: 1072
Transit ASes present in the Internet Routing Table: 370
Transit-only ASes present in the Internet Routing Table: 62
Paths with bogon ASNs present in the IPv4 Routing Table: 3
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 19
Max AS path prepend of ASN (395156) 12
Prefixes from unregistered ASNs in the Routing Table: 2
Number of instances of unregistered ASNs: 2
Number of 32-bit ASNs allocated by the RIRs: 45307
Number of 32-bit ASNs visible in the Routing Table: 684
Prefixes from 32-bit ASNs in the Routing Table: 1918
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: 6
Number of addresses announced to Internet: 272753152
Equivalent to 16 /8s, 65 /16s and 226 /24s
Percentage of available address space announced: 7.4
Percentage of allocated address space announced: 7.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.6
Total number of prefixes smaller than registry allocations: 2398
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4710
Total APNIC prefixes after maximum aggregation: 2297
APNIC Deaggregation factor: 2.05
Prefixes being announced from the APNIC address blocks: 4762
Unique aggregates announced from the APNIC address blocks: 2704
APNIC Region origin ASes present in the Internet Routing Table: 580
APNIC Prefixes per ASN: 8.21
APNIC Region origin ASes announcing only one prefix: 245
APNIC Region transit ASes present in the Internet Routing Table: 61
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 14
Number of APNIC region 32-bit ASNs visible in the Routing Table: 228
Number of APNIC addresses announced to Internet: 47500544
Equivalent to 2 /8s, 212 /16s and 205 /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 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 9167
Total ARIN prefixes after maximum aggregation: 5577
ARIN Deaggregation factor: 1.64
Prefixes being announced from the ARIN address blocks: 8823
Unique aggregates announced from the ARIN address blocks: 5857
ARIN Region origin ASes present in the Internet Routing Table: 1292
ARIN Prefixes per ASN: 6.83
ARIN Region origin ASes announcing only one prefix: 446
ARIN Region transit ASes present in the Internet Routing Table: 156
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 15
Number of ARIN region 32-bit ASNs visible in the Routing Table: 210
Number of ARIN addresses announced to Internet: 136248320
Equivalent to 8 /8s, 30 /16s and 252 /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 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 52/8, 53/8,
54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8,
66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8,
73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8,
99/8, 100/8, 104/8, 107/8, 108/8, 128/8, 129/8,
130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8,
138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8,
147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8,
158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8,
166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8,
174/8, 184/8, 192/8, 198/8, 199/8, 204/8, 205/8,
206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 3517
Total RIPE prefixes after maximum aggregation: 2818
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3801
Unique aggregates announced from the RIPE address blocks: 3187
RIPE Region origin ASes present in the Internet Routing Table: 662
RIPE Prefixes per ASN: 5.74
RIPE Region origin ASes announcing only one prefix: 295
RIPE Region transit ASes present in the Internet Routing Table: 103
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 14
Number of RIPE region 32-bit ASNs visible in the Routing Table: 152
Number of RIPE addresses announced to Internet: 81645056
Equivalent to 4 /8s, 221 /16s and 206 /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 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 1378
Total LACNIC prefixes after maximum aggregation: 537
LACNIC Deaggregation factor: 2.57
Prefixes being announced from the LACNIC address blocks: 1379
Unique aggregates announced from the LACNIC address blocks: 716
LACNIC Region origin ASes present in the Internet Routing Table: 157
LACNIC Prefixes per ASN: 8.78
LACNIC Region origin ASes announcing only one prefix: 55
LACNIC Region transit ASes present in the Internet Routing Table: 23
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: 64
Number of LACNIC addresses announced to Internet: 4734464
Equivalent to 0 /8s, 72 /16s and 62 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1151
Total AfriNIC prefixes after maximum aggregation: 183
AfriNIC Deaggregation factor: 6.29
Prefixes being announced from the AfriNIC address blocks: 1154
Unique aggregates announced from the AfriNIC address blocks: 233
AfriNIC Region origin ASes present in the Internet Routing Table: 51
AfriNIC Prefixes per ASN: 22.63
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 30
Number of AfriNIC addresses announced to Internet: 2614016
Equivalent to 0 /8s, 39 /16s and 227 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers
AfriNIC Address Blocks 41/8, 45/8, 102/8, 105/8, 154/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2907 588 2169 464 SINET-AS Research Organization of Informa
7497 451 212 25 CSTNET-AS-AP Computer Network Information
1237 190 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 132 19 20 NKN-CORE-NW NKN Core Network, IN
4538 129 4192 72 ERX-CERNET-BKB China Education and Resear
4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, Tha
4621 69 37 10 UNINET-AS-AP UNINET-, TH
23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR
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 658 16043 558 MICROSOFT-CORP-MSN-AS-BLOCK, US
668 205 648 174 DNIC-AS-00668, US
376 198 162 148 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
2920 175 34 7 LACOE, US
2152 155 507 97 CENIC-2152, US
18558 140 18 4 NETBLK-RCOEK, US
81 133 517 33 NCREN, US
270 117 328 81 AS270, US
23024 95 7 21 OCDE, 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
680 282 1899 249 DFN Verein zur Foerderung eines Deutschen
786 185 1767 182 JANET Jisc Services Limited, GB
8895 135 24 5 ISU Internet Services Unit ISU, SA
559 113 533 103 SWITCH Peering requests: peering at switch.c
1103 97 2015 84 SURFNET-NL SURFnet, The Netherlands, NL
2614 90 26 70 ROEDUNET, RO
137 81 676 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 76 26 66 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 164 180 41 Rede Nacional de Ensino e Pesquisa, BR
28391 153 10 67 Universidad Juarez Autonoma de Tabasco, M
11340 109 25 52 Red Universitaria Nacional, CL
271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
61468 50 5 17 CEDIA, EC
19611 48 17 2 Associacao Antonio Vieira - Unisinos, BR
2715 45 99 34 Fundacao Carlos Chagas Filho de Amparo a
4270 45 16 1 Red de Interconexion Universitaria, AR
28614 38 2 2 Fundacao Universidade Regional de Blumena
3596 37 8 4 Universidad Autonoma Metropolitana, MX
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 521 82 3 KENET-AS, KE
2018 381 319 71 TENET-1, ZA
8094 47 48 18 PUKNET, ZA
327700 47 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37074 15 8 2 UG-AS, GH
37182 14 1 10 TERNET, TZ
37661 13 8 5 NRaE1-AS, NG
37215 11 8 1 MAREN, MW
37501 11 49 6 UOFS, 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 658 16043 558 MICROSOFT-CORP-MSN-AS-BLOCK, US
2907 588 2169 464 SINET-AS Research Organization of Informa
36914 521 82 3 KENET-AS, KE
7497 451 212 25 CSTNET-AS-AP Computer Network Information
2018 381 319 71 TENET-1, ZA
680 282 1899 249 DFN Verein zur Foerderung eines Deutschen
668 205 648 174 DNIC-AS-00668, US
376 198 162 148 RISQ-AS, CA
5786 198 16 1 UPRENET, PR
1237 190 74 145 KREONET-AS-KR KISTI, KR
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 521 518 KENET-AS, KE
7497 451 426 CSTNET-AS-AP Computer Network Information Cente
2018 381 310 TENET-1, ZA
5786 198 197 UPRENET, PR
58647 180 178 KAGAWAU-AS Kagawa University, JP
2920 175 168 LACOE, US
18558 140 136 NETBLK-RCOEK, US
8895 135 130 ISU Internet Services Unit ISU, SA
2907 588 124 SINET-AS Research Organization of Information a
1916 164 123 Rede Nacional de Ensino e Pesquisa, BR
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
26971 UNALLOCATED 129.111.0.0/16 276 OTS-AS-276, US
65208 PRIVATE 206.206.156.0/22 11570 AS11570, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
164.160.192.0/21 Origin: 37661 NRaE1-AS, NG
164.160.192.0/21 Transit: 37288 WACREN, SN
202.14.117.0/24 Origin: 17827 STOU-AS-TH Sukhothai Thammathirat Open U
202.14.117.0/24 Transit: 4621 UNINET-AS-AP UNINET-, TH
202.46.0.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.0.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
202.46.240.0/20 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.240.0/20 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
202.46.245.0/24 Origin: 147171 IDNIC-BRIN-AS-ID Badan Riset dan Inovasi
202.46.245.0/24 Transit: 64302 IDNIC-IDREN-AS-ID IDREN - Indonesia Rese
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-add-IANA
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 /11:8 /12:24
/13:31 /14:61 /15:158 /16:2217 /17:448 /18:475
/19:596 /20:895 /21:893 /22:1484 /23:1570 /24:11061
/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
36914 499 521 KENET-AS, KE
8895 130 135 ISU Internet Services Unit ISU, SA
8075 116 658 MICROSOFT-CORP-MSN-AS-BLOCK, US
327700 41 47 MoRENet, MZ
23024 38 95 OCDE, US
32440 37 64 LONI, US
3267 35 76 NIKS, RU
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
200521 32 55 SEAP-AGE, ES
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 13:31 14:91 23:9 24:3 31:1
35:7 37:8 38:10 40:1 41:242 42:10
44:5 45:57 46:5 47:1 49:11 50:7
52:6 58:1 59:19 60:6 61:3 62:14
63:36 64:51 65:1 66:54 67:47 68:19
69:27 70:2 71:1 72:8 74:57 76:43
77:11 78:3 79:10 80:13 81:26 82:6
83:7 84:5 85:45 86:5 87:1 89:11
91:49 92:4 93:13 94:6 95:3 96:5
97:1 98:2 101:1 102:12 103:329 104:80
107:2 108:11 109:4 111:17 113:6 114:24
116:9 117:61 118:34 119:24 121:27 122:8
123:8 124:43 125:5 128:84 129:36 130:96
131:71 132:67 133:154 134:109 135:4 136:198
137:56 138:62 139:6 140:36 141:4 142:29
143:24 144:31 145:6 146:135 147:65 148:194
149:14 150:46 151:11 152:136 153:15 154:37
155:69 156:133 157:18 158:37 159:122 160:30
161:25 162:40 163:65 164:20 165:48 166:3
167:29 168:119 169:7 170:102 171:1 172:2
173:8 175:17 176:1 177:5 178:2 179:13
180:16 181:1 182:9 184:7 185:81 186:3
187:21 188:14 189:3 190:18 191:13 192:1511
193:262 194:131 195:70 196:147 197:314 198:489
199:306 200:288 201:38 202:646 203:445 204:391
205:139 206:213 207:229 208:74 209:116 210:216
211:3 212:166 213:10 214:8 216:97 217:11
218:21 219:5 220:17 222:2 223:15
End of report
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