[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at frr.nsrc.org
Mon May 23 22:05:37 UTC 2022
IPv4 R&E Routing Table Report 22:05 GMT Mon 23 May, 2022
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: 22061
Prefixes after maximum aggregation (per Origin AS): 12542
Deaggregation factor: 1.76
Unique aggregates announced (without unneeded subnets): 14430
Number of IPv4 prefixes with a valid ROA: 7453
Number of IPv4 prefixes with an invalid ROA: 18
Number of IPv4 prefixes with no ROA: 14590
Total ASes present in the Internet Routing Table: 2787
Prefixes per ASN: 7.92
Origin-only ASes present in the Internet Routing Table: 2403
Origin ASes announcing only one prefix: 1095
Transit ASes present in the Internet Routing Table: 384
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 16
Max AS path prepend of ASN ( 1149) 11
Prefixes from unregistered ASNs in the Routing Table: 5
Number of instances of unregistered ASNs: 5
Number of 32-bit ASNs allocated by the RIRs: 39454
Number of 32-bit ASNs visible in the Routing Table: 624
Prefixes from 32-bit ASNs in the Routing Table: 1682
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: 6
Number of addresses announced to Internet: 288032512
Equivalent to 17 /8s, 43 /16s and 7 /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: 99.6
Total number of prefixes smaller than registry allocations: 2582
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4621
Total APNIC prefixes after maximum aggregation: 2281
APNIC Deaggregation factor: 2.03
Prefixes being announced from the APNIC address blocks: 4699
Unique aggregates announced from the APNIC address blocks: 2666
APNIC Region origin ASes present in the Internet Routing Table: 576
APNIC Prefixes per ASN: 8.16
APNIC Region origin ASes announcing only one prefix: 251
APNIC Region transit ASes present in the Internet Routing Table: 70
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 223
Number of APNIC addresses announced to Internet: 46637568
Equivalent to 2 /8s, 199 /16s and 162 /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: 11627
Total ARIN prefixes after maximum aggregation: 6669
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 11408
Unique aggregates announced from the ARIN address blocks: 7728
ARIN Region origin ASes present in the Internet Routing Table: 1256
ARIN Prefixes per ASN: 9.08
ARIN Region origin ASes announcing only one prefix: 443
ARIN Region transit ASes present in the Internet Routing Table: 161
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: 175
Number of ARIN addresses announced to Internet: 174219264
Equivalent to 10 /8s, 98 /16s and 96 /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: 3479
Total RIPE prefixes after maximum aggregation: 2827
RIPE Deaggregation factor: 1.23
Prefixes being announced from the RIPE address blocks: 3616
Unique aggregates announced from the RIPE address blocks: 2974
RIPE Region origin ASes present in the Internet Routing Table: 675
RIPE Prefixes per ASN: 5.36
RIPE Region origin ASes announcing only one prefix: 309
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: 136
Number of RIPE addresses announced to Internet: 59630336
Equivalent to 3 /8s, 141 /16s and 227 /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: 1397
Total LACNIC prefixes after maximum aggregation: 566
LACNIC Deaggregation factor: 2.47
Prefixes being announced from the LACNIC address blocks: 1398
Unique aggregates announced from the LACNIC address blocks: 765
LACNIC Region origin ASes present in the Internet Routing Table: 166
LACNIC Prefixes per ASN: 8.42
LACNIC Region origin ASes announcing only one prefix: 69
LACNIC Region transit ASes present in the Internet Routing Table: 22
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 12
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 65
Number of LACNIC addresses announced to Internet: 4742656
Equivalent to 0 /8s, 72 /16s and 94 /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: 932
Total AfriNIC prefixes after maximum aggregation: 194
AfriNIC Deaggregation factor: 4.80
Prefixes being announced from the AfriNIC address blocks: 934
Unique aggregates announced from the AfriNIC address blocks: 291
AfriNIC Region origin ASes present in the Internet Routing Table: 48
AfriNIC Prefixes per ASN: 19.46
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 10
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25
Number of AfriNIC addresses announced to Internet: 2801152
Equivalent to 0 /8s, 42 /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 2140 454 SINET-AS Research Organization of Infor
7497 431 182 24 CSTNET-AS-AP Computer Network Informati
1237 187 74 135 KREONET-AS-KR KISTI, KR
7575 177 330 123 AARNET-AS-AP Australian Academic and Re
58647 175 18 2 KAGAWAU-AS Kagawa University, JP
4538 129 4192 73 ERX-CERNET-BKB China Education and Rese
55824 116 18 11 NKN-CORE-NW NKN Core Network, IN
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 2528 4352 1076 AMAZON-02, US
14618 608 3990 464 AMAZON-AES, US
8075 216 10878 193 MICROSOFT-CORP-MSN-AS-BLOCK, US
668 210 702 178 DNIC-AS-00668, US
376 202 178 151 RISQ-AS, CA
5786 200 16 1 UPRENET, PR
2152 152 507 90 CSUNET-NW, US
18558 131 18 4 NETBLK-RCOEK, US
270 120 329 88 AS270, US
23024 114 7 17 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
680 284 1967 251 DFN Verein zur Foerderung eines Deutsch
786 186 1774 183 JANET Jisc Services Limited, GB
8895 138 24 4 ISU Internet Services Unit ISU, SA
559 115 550 106 SWITCH Peering requests: peering at switch
1103 99 1520 86 SURFNET-NL SURFnet, The Netherlands, NL
2614 96 27 76 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 73 449 73 BELWUE BelWue-Koordination, DE
2200 63 583 58 FR-RENATER Reseau National de telecommu
1930 58 81 53 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 156 208 45 Rede Nacional de Ensino e Pesquisa, BR
28391 152 10 66 Universidad Juarez Autonoma de Tabasco,
11340 94 24 54 Red Universitaria Nacional, CL
1251 60 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
19611 46 17 2 Associacao Antonio Vieira - Unisinos, B
4270 44 16 1 Red de Interconexion Universitaria, AR
61468 41 3 15 CEDIA, EC
28614 37 2 2 Fundacao Universidade Regional de Blume
263282 37 5 12 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA
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 375 319 74 TENET-1, ZA
36914 219 82 3 KENET-AS, KE
2561 67 4 32 EUN, EG
8094 49 48 9 PUKNET, ZA
327687 36 28 3 RENU, UG
327700 34 16 1 MoRENet, MZ
6879 24 2 9 ENSTINET-, EG
37182 16 8 1 TERNET, TZ
37074 13 8 2 UG-AS, GH
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 2528 4352 1076 AMAZON-02, US
14618 608 3990 464 AMAZON-AES, US
2907 571 2140 454 SINET-AS Research Organization of Infor
7497 431 182 24 CSTNET-AS-AP Computer Network Informati
2018 375 319 74 TENET-1, ZA
680 284 1967 251 DFN Verein zur Foerderung eines Deutsch
36914 219 82 3 KENET-AS, KE
8075 216 10878 193 MICROSOFT-CORP-MSN-AS-BLOCK, US
668 210 702 178 DNIC-AS-00668, US
376 202 178 151 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 431 407 CSTNET-AS-AP Computer Network Information Cente
2018 375 301 TENET-1, ZA
36914 219 216 KENET-AS, KE
5786 200 199 UPRENET, PR
58647 175 173 KAGAWAU-AS Kagawa University, JP
14618 608 144 AMAZON-AES, US
8895 138 134 ISU Internet Services Unit ISU, SA
18558 131 127 NETBLK-RCOEK, US
2907 571 117 SINET-AS Research Organization of Information a
1916 156 111 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
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
395514 UNALLOCATED 205.213.88.0/24 2381 WISCNET1-AS, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, 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
76.76.19.0/24 Origin: 16509 AMAZON-02, US
76.76.19.0/24 Transit: 2152 CSUNET-NW, US
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
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
/13:34 /14:81 /15:199 /16:2141 /17:465 /18:473
/19:609 /20:1014 /21:984 /22:1587 /23:1732 /24:12702
/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 364 2528 AMAZON-02, US
36914 206 219 KENET-AS, KE
14618 203 608 AMAZON-AES, US
8895 133 138 ISU Internet Services Unit ISU, SA
23024 53 114 OCDE, US
25977 31 45 HCCS, US
28614 31 37 Fundacao Universidade Regional de Blumenau, BR
327700 31 34 MoRENet, MZ
32440 30 45 LONI, US
263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 3:81 4:2 5:16 6:4 8:2
12:1 13:98 14:86 15:60 16:2 18:52
23:46 24:3 31:6 35:6 37:7 38:9
40:3 41:125 42:10 44:5 45:53 46:11
47:1 49:10 50:11 52:730 54:236 58:1
59:20 60:4 61:3 62:7 63:42 64:141
65:11 66:74 67:62 68:17 69:45 70:27
71:8 72:18 74:42 76:39 77:9 78:3
79:10 80:17 81:28 82:5 83:6 84:4
85:47 86:4 87:2 88:1 89:12 91:52
93:10 94:4 95:4 96:6 97:1 98:13
99:50 101:6 102:12 103:338 104:108 107:18
108:20 109:12 110:4 111:17 114:23 115:1
116:7 117:61 118:32 119:23 121:27 122:11
123:8 124:39 125:3 128:90 129:45 130:147
131:97 132:58 133:145 134:97 135:1 136:211
137:88 138:10 139:17 140:52 141:5 142:58
143:34 144:35 145:2 146:130 147:67 148:200
149:15 150:48 151:8 152:81 153:13 154:29
155:63 156:68 157:27 158:50 159:157 160:30
161:29 162:55 163:71 164:29 165:65 166:1
167:23 168:165 169:12 170:128 171:1 172:10
173:18 174:1 175:31 176:12 177:11 178:2
179:10 180:21 181:1 182:6 184:4 185:65
186:3 187:19 188:14 189:5 190:34 191:34
192:1514 193:317 194:134 195:82 196:162 197:125
198:532 199:330 200:240 201:38 202:639 203:430
204:362 205:195 206:216 207:193 208:114 209:137
210:183 211:15 212:151 213:16 214:8 216:149
217:11 218:22 219:6 220:17 222:5 223:3
End of report
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