[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Fri Jan 14 22:05:32 UTC 2022
IPv4 R&E Routing Table Report 22:05 GMT Fri 14 Jan, 2022
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: 22243
Prefixes after maximum aggregation (per Origin AS): 12328
Deaggregation factor: 1.80
Unique aggregates announced (without unneeded subnets): 14588
Number of IPv4 prefixes with a valid ROA: 7139
Number of IPv4 prefixes with an invalid ROA: 18
Number of IPv4 prefixes with no ROA: 15086
Total ASes present in the Internet Routing Table: 2772
Prefixes per ASN: 8.02
Origin-only ASes present in the Internet Routing Table: 2393
Origin ASes announcing only one prefix: 1112
Transit ASes present in the Internet Routing Table: 379
Transit-only ASes present in the Internet Routing Table: 49
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 15
Max AS path prepend of ASN ( 10497) 11
Prefixes from unregistered ASNs in the Routing Table: 3
Number of instances of unregistered ASNs: 3
Number of 32-bit ASNs allocated by the RIRs: 38301
Number of 32-bit ASNs visible in the Routing Table: 607
Prefixes from 32-bit ASNs in the Routing Table: 1704
Number of bogon 32-bit ASNs visible in the Routing Table: 0
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 5
Number of addresses announced to Internet: 288300288
Equivalent to 17 /8s, 47 /16s and 29 /24s
Percentage of available address space announced: 7.8
Percentage of allocated address space announced: 7.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 99.5
Total number of prefixes smaller than registry allocations: 2978
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4487
Total APNIC prefixes after maximum aggregation: 2287
APNIC Deaggregation factor: 1.96
Prefixes being announced from the APNIC address blocks: 4556
Unique aggregates announced from the APNIC address blocks: 2629
APNIC Region origin ASes present in the Internet Routing Table: 559
APNIC Prefixes per ASN: 8.15
APNIC Region origin ASes announcing only one prefix: 245
APNIC Region transit ASes present in the Internet Routing Table: 59
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 12
Number of APNIC region 32-bit ASNs visible in the Routing Table: 210
Number of APNIC addresses announced to Internet: 46708224
Equivalent to 2 /8s, 200 /16s and 182 /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, 131072-151865
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: 11938
Total ARIN prefixes after maximum aggregation: 6476
ARIN Deaggregation factor: 1.84
Prefixes being announced from the ARIN address blocks: 11772
Unique aggregates announced from the ARIN address blocks: 7909
ARIN Region origin ASes present in the Internet Routing Table: 1261
ARIN Prefixes per ASN: 9.34
ARIN Region origin ASes announcing only one prefix: 450
ARIN Region transit ASes present in the Internet Routing Table: 165
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 14
Number of ARIN region 32-bit ASNs visible in the Routing Table: 164
Number of ARIN addresses announced to Internet: 174241024
Equivalent to 10 /8s, 98 /16s and 181 /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, 393216-401308
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: 3388
Total RIPE prefixes after maximum aggregation: 2760
RIPE Deaggregation factor: 1.23
Prefixes being announced from the RIPE address blocks: 3475
Unique aggregates announced from the RIPE address blocks: 2900
RIPE Region origin ASes present in the Internet Routing Table: 669
RIPE Prefixes per ASN: 5.19
RIPE Region origin ASes announcing only one prefix: 320
RIPE Region transit ASes present in the Internet Routing Table: 101
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 15
Number of RIPE region 32-bit ASNs visible in the Routing Table: 133
Number of RIPE addresses announced to Internet: 59751168
Equivalent to 3 /8s, 143 /16s and 187 /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
196608-213403
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: 1524
Total LACNIC prefixes after maximum aggregation: 614
LACNIC Deaggregation factor: 2.48
Prefixes being announced from the LACNIC address blocks: 1530
Unique aggregates announced from the LACNIC address blocks: 849
LACNIC Region origin ASes present in the Internet Routing Table: 181
LACNIC Prefixes per ASN: 8.45
LACNIC Region origin ASes announcing only one prefix: 76
LACNIC Region transit ASes present in the Internet Routing Table: 26
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 75
Number of LACNIC addresses announced to Internet: 4731904
Equivalent to 0 /8s, 72 /16s and 52 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-273820 + 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: 903
Total AfriNIC prefixes after maximum aggregation: 188
AfriNIC Deaggregation factor: 4.80
Prefixes being announced from the AfriNIC address blocks: 905
Unique aggregates announced from the AfriNIC address blocks: 296
AfriNIC Region origin ASes present in the Internet Routing Table: 50
AfriNIC Prefixes per ASN: 18.10
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 8
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25
Number of AfriNIC addresses announced to Internet: 2866688
Equivalent to 0 /8s, 43 /16s and 190 /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 571 2157 457 SINET-AS Research Organization of Infor
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
1237 184 74 135 KREONET-AS-KR KISTI, KR
7575 177 330 123 AARNET-AS-AP Australian Academic and Re
58647 165 18 2 KAGAWAU-AS Kagawa University, JP
55824 130 19 23 NKN-CORE-NW NKN Core Network, IN
4538 127 4192 72 ERX-CERNET-BKB China Education and Rese
4621 78 37 10 UNINET-AS-AP UNINET-, TH
4762 65 4 1 MAHIDOL-BORDER-AS Mahidol University, T
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
16509 2603 4290 913 AMAZON-02, US
14618 563 3987 430 AMAZON-AES, US
7896 250 51 7 NU-AS, US
668 212 702 180 DNIC-AS-00668, US
8075 207 10901 188 MICROSOFT-CORP-MSN-AS-BLOCK, US
376 203 178 152 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
2152 148 507 89 CSUNET-NW, US
18558 134 18 4 NETBLK-RCOEK, US
270 119 329 88 AS270, 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
680 279 1950 245 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
8895 143 24 4 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 98 1520 85 SURFNET-NL SURFnet, The Netherlands, NL
137 82 677 77 ASGARR Consortium GARR, IT
553 72 449 72 BELWUE BelWue-Koordination, DE
2200 67 647 61 FR-RENATER Reseau National de telecommu
2614 60 33 57 ROEDUNET, RO
1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol
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 176 207 41 Rede Nacional de Ensino e Pesquisa, BR
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
11340 95 24 55 Red Universitaria Nacional, CL
1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
52286 54 4 31 Columbus Networks Guatemala, GT
19611 45 17 2 Associacao Antonio Vieira - Unisinos, B
4270 44 16 1 Red de Interconexion Universitaria, AR
61468 41 3 15 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
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
2018 351 319 74 TENET-1, ZA
36914 203 82 3 KENET-AS, KE
2561 72 5 31 EUN, EG
8094 50 48 4 PUKNET, ZA
327700 45 16 1 MoRENet, MZ
327687 37 28 3 RENU, UG
6879 24 2 9 ENSTINET-, EG
37074 13 8 2 UG-AS, GH
37182 12 8 1 TERNET, TZ
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
16509 2603 4290 913 AMAZON-02, US
2907 571 2157 457 SINET-AS Research Organization of Infor
14618 563 3987 430 AMAZON-AES, US
7497 432 182 24 CSTNET-AS-AP Computer Network Informati
2018 351 319 74 TENET-1, ZA
680 279 1950 245 DFN Verein zur Foerderung eines Deutsch
7896 250 51 7 NU-AS, US
668 212 702 180 DNIC-AS-00668, US
8075 207 10901 188 MICROSOFT-CORP-MSN-AS-BLOCK, US
376 203 178 152 RISQ-AS, CA
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
7497 432 408 CSTNET-AS-AP Computer Network Information Cente
2018 351 277 TENET-1, ZA
7896 250 243 NU-AS, US
36914 203 200 KENET-AS, KE
5786 200 199 UPRENET, PR
58647 165 163 KAGAWAU-AS Kagawa University, JP
8895 143 139 ISU Internet Services Unit ISU, SA
1916 176 135 Rede Nacional de Ensino e Pesquisa, BR
14618 563 133 AMAZON-AES, US
18558 134 130 NETBLK-RCOEK, US
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
22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US
22226 UNALLOCATED 156.1.0.0/16 2152 CSUNET-NW, US
19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
103.151.24.0/24 Origin: 16509 AMAZON-02, US
103.151.24.0/24 Transit: 2152 CSUNET-NW, US
192.31.196.0/24 Origin: 112 UNASSIGNED
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL
192.88.99.0/24 Transit: 11537 INTERNET2-RESEARCH-EDU, US
198.135.168.0/24 Origin: 14618 AMAZON-AES, US
198.135.168.0/24 Transit: 16509 AMAZON-02, US
216.169.147.0/24 Origin: 14618 AMAZON-AES, US
216.169.147.0/24 Transit: 16509 AMAZON-02, US
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 /10:4 /11:7 /12:28
/13:33 /14:80 /15:199 /16:2149 /17:451 /18:469
/19:607 /20:985 /21:1002 /22:1568 /23:1713 /24:12947
/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
16509 686 2603 AMAZON-02, US
36914 190 203 KENET-AS, KE
14618 185 563 AMAZON-AES, US
8895 138 143 ISU Internet Services Unit ISU, SA
23024 53 114 OCDE, US
327700 39 45 MoRENet, MZ
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
25977 31 45 HCCS, US
263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
18632 29 55 VOLCANO-VISION, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:4 3:78 4:2 5:16 6:4 8:2
12:1 13:209 14:85 15:43 16:2 18:42
23:40 24:3 31:6 35:2 37:6 38:9
40:3 41:123 42:8 44:5 45:60 46:8
47:1 49:8 50:9 52:672 54:171 58:1
59:4 60:4 61:3 62:7 63:43 64:123
65:9 66:68 67:63 68:17 69:47 70:7
71:9 72:53 74:42 75:128 76:165 77:9
78:3 79:10 80:16 81:28 82:6 83:7
84:4 85:37 86:4 87:1 88:1 89:12
91:56 92:1 93:19 94:4 95:6 96:6
97:1 98:11 99:176 101:6 102:13 103:312
104:106 106:1 107:24 108:20 109:12 110:3
111:21 112:4 113:1 114:24 116:5 117:61
119:22 121:26 122:3 123:8 124:39 125:4
128:86 129:182 130:111 131:97 132:58 133:139
134:101 135:1 136:204 137:91 138:9 139:16
140:52 141:3 142:58 143:37 144:63 145:2
146:129 147:65 148:199 149:16 150:44 151:8
152:81 153:11 154:26 155:60 156:69 157:31
158:45 159:119 160:30 161:21 162:53 163:74
164:49 165:61 166:1 167:23 168:202 169:10
170:120 171:1 172:10 173:18 174:1 175:31
176:12 177:12 178:3 179:12 180:21 181:12
182:6 184:2 185:59 186:3 187:18 188:14
189:5 190:49 191:37 192:1498 193:255 194:132
195:88 196:149 197:114 198:527 199:321 200:256
201:39 202:613 203:419 204:363 205:194 206:217
207:193 208:104 209:136 210:181 211:13 212:174
213:15 214:7 216:137 217:15 218:25 219:6
220:17 222:5 223:3
End of report
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