[REN-BGP-stats-all] IPv4 R&E Routing Table Report - CENIC (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Sat Aug 19 22:05:44 UTC 2023
IPv4 R&E Routing Table Report 22:05 GMT Sat 19 Aug, 2023
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: 24400
Prefixes after maximum aggregation (per Origin AS): 13609
Deaggregation factor: 1.79
Unique aggregates announced (without unneeded subnets): 16117
Number of IPv4 prefixes with a valid ROA: 10626
Number of IPv4 prefixes with an invalid ROA: 10
Number of IPv4 prefixes with no ROA: 13764
Total ASes present in the Internet Routing Table: 2772
Prefixes per ASN: 8.80
Origin-only ASes present in the Internet Routing Table: 2387
Origin ASes announcing only one prefix: 1048
Transit ASes present in the Internet Routing Table: 385
Transit-only ASes present in the Internet Routing Table: 72
Paths with bogon ASNs present in the IPv4 Routing Table: 2
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 16
Max AS path prepend of ASN (395156) 12
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: 42466
Number of 32-bit ASNs visible in the Routing Table: 630
Prefixes from 32-bit ASNs in the Routing Table: 1930
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: 296107776
Equivalent to 17 /8s, 166 /16s and 63 /24s
Percentage of available address space announced: 8.0
Percentage of allocated address space announced: 8.0
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: 3108
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 4641
Total APNIC prefixes after maximum aggregation: 2269
APNIC Deaggregation factor: 2.05
Prefixes being announced from the APNIC address blocks: 4754
Unique aggregates announced from the APNIC address blocks: 2717
APNIC Region origin ASes present in the Internet Routing Table: 534
APNIC Prefixes per ASN: 8.90
APNIC Region origin ASes announcing only one prefix: 221
APNIC Region transit ASes present in the Internet Routing Table: 60
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 15
Number of APNIC region 32-bit ASNs visible in the Routing Table: 200
Number of APNIC addresses announced to Internet: 47297024
Equivalent to 2 /8s, 209 /16s and 178 /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: 13658
Total ARIN prefixes after maximum aggregation: 7742
ARIN Deaggregation factor: 1.76
Prefixes being announced from the ARIN address blocks: 13302
Unique aggregates announced from the ARIN address blocks: 9214
ARIN Region origin ASes present in the Internet Routing Table: 1272
ARIN Prefixes per ASN: 10.46
ARIN Region origin ASes announcing only one prefix: 444
ARIN Region transit ASes present in the Internet Routing Table: 164
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 196
Number of ARIN addresses announced to Internet: 173826816
Equivalent to 10 /8s, 92 /16s and 99 /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: 3589
Total RIPE prefixes after maximum aggregation: 2860
RIPE Deaggregation factor: 1.25
Prefixes being announced from the RIPE address blocks: 3826
Unique aggregates announced from the RIPE address blocks: 3176
RIPE Region origin ASes present in the Internet Routing Table: 683
RIPE Prefixes per ASN: 5.60
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: 4.6
Max RIPE Region AS path length visible: 13
Number of RIPE region 32-bit ASNs visible in the Routing Table: 143
Number of RIPE addresses announced to Internet: 67449344
Equivalent to 4 /8s, 5 /16s and 50 /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: 1456
Total LACNIC prefixes after maximum aggregation: 566
LACNIC Deaggregation factor: 2.57
Prefixes being announced from the LACNIC address blocks: 1457
Unique aggregates announced from the LACNIC address blocks: 780
LACNIC Region origin ASes present in the Internet Routing Table: 161
LACNIC Prefixes per ASN: 9.05
LACNIC Region origin ASes announcing only one prefix: 61
LACNIC Region transit ASes present in the Internet Routing Table: 26
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 13
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66
Number of LACNIC addresses announced to Internet: 4741120
Equivalent to 0 /8s, 72 /16s and 88 /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: 1053
Total AfriNIC prefixes after maximum aggregation: 169
AfriNIC Deaggregation factor: 6.23
Prefixes being announced from the AfriNIC address blocks: 1055
Unique aggregates announced from the AfriNIC address blocks: 224
AfriNIC Region origin ASes present in the Internet Routing Table: 48
AfriNIC Prefixes per ASN: 21.98
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 3.8
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: 2791936
Equivalent to 0 /8s, 42 /16s and 154 /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 592 2162 464 SINET-AS Research Organization of Infor
7497 435 180 23 CSTNET-AS-AP Computer Network Informati
1237 191 74 139 KREONET-AS-KR KISTI, KR
58647 178 18 2 KAGAWAU-AS Kagawa University, JP
7575 177 329 120 AARNET-AS-AP Australian Academic and Re
4538 130 4192 73 ERX-CERNET-BKB China Education and Rese
55824 125 18 17 NKN-CORE-NW NKN Core Network, IN
4621 69 37 9 UNINET-AS-AP UNINET-, TH
9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T
4762 61 4 1 MAHIDOL-BORDER-AS Mahidol University, T
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 4322 4664 1963 AMAZON-02, US
14618 804 4019 603 AMAZON-AES, US
8075 371 12790 314 MICROSOFT-CORP-MSN-AS-BLOCK, US
668 204 652 173 DNIC-AS-00668, US
376 202 178 150 RISQ-AS, CA
5786 197 16 1 UPRENET, PR
2152 142 507 92 CSUNET-NW, US
18558 136 18 4 NETBLK-RCOEK, US
81 127 521 30 NCREN, US
270 118 329 82 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
680 283 1903 249 DFN Verein zur Foerderung eines Deutsch
786 184 1767 181 JANET Jisc Services Limited, GB
8895 136 24 5 ISU Internet Services Unit ISU, SA
559 113 533 105 SWITCH Peering requests: peering at switch
1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL
2614 94 27 74 ROEDUNET, RO
137 82 677 77 ASGARR Consortium GARR, IT
553 74 465 74 BELWUE BelWue-Koordination, DE
1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol
2200 64 599 59 FR-RENATER Reseau National de telecommu
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 221 176 42 Rede Nacional de Ensino e Pesquisa, BR
28391 153 10 67 Universidad Juarez Autonoma de Tabasco,
11340 104 24 48 Red Universitaria Nacional, CL
271640 73 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR
2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo
4270 49 16 1 Red de Interconexion Universitaria, AR
19611 48 17 2 Associacao Antonio Vieira - Unisinos, B
61468 43 3 14 CEDIA, EC
28614 38 2 2 Fundacao Universidade Regional de Blume
3596 34 4 3 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
2018 371 319 71 TENET-1, ZA
36914 257 82 3 KENET-AS, KE
327687 165 28 3 RENU, UG
8094 48 48 15 PUKNET, ZA
327700 39 16 1 MoRENet, MZ
3208 32 2 1 ARN, DZ
6879 24 2 9 ENSTINET-, EG
37074 14 8 2 UG-AS, GH
37501 11 49 6 UOFS, ZA
37654 10 1 6 RwEdNet-AS, RW
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 4322 4664 1963 AMAZON-02, US
14618 804 4019 603 AMAZON-AES, US
2907 592 2162 464 SINET-AS Research Organization of Infor
7497 435 180 23 CSTNET-AS-AP Computer Network Informati
2018 371 319 71 TENET-1, ZA
8075 371 12790 314 MICROSOFT-CORP-MSN-AS-BLOCK, US
680 283 1903 249 DFN Verein zur Foerderung eines Deutsch
36914 257 82 3 KENET-AS, KE
1916 221 176 42 Rede Nacional de Ensino e Pesquisa, BR
668 204 652 173 DNIC-AS-00668, US
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 435 412 CSTNET-AS-AP Computer Network Information Cente
2018 371 300 TENET-1, ZA
36914 257 254 KENET-AS, KE
14618 804 201 AMAZON-AES, US
5786 197 196 UPRENET, PR
1916 221 179 Rede Nacional de Ensino e Pesquisa, BR
58647 178 176 KAGAWAU-AS Kagawa University, JP
327687 165 162 RENU, UG
18558 136 132 NETBLK-RCOEK, US
8895 136 131 ISU Internet Services Unit ISU, SA
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
394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US
33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US
394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
64.186.3.0/24 Origin: 16509 AMAZON-02, US
64.186.3.0/24 Transit: 2152 CSUNET-NW, US
192.31.196.0/24 Origin: 112 RESERVED, ZZ
192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL
193.37.39.0/24 Origin: 16509 AMAZON-02, US
193.37.39.0/24 Transit: 2152 CSUNET-NW, US
193.84.26.0/24 Origin: 16509 AMAZON-02, US
193.84.26.0/24 Transit: 2152 CSUNET-NW, 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 /11:9 /12:29
/13:36 /14:81 /15:202 /16:2135 /17:499 /18:476
/19:620 /20:1011 /21:1179 /22:1908 /23:1968 /24:14242
/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 696 4322 AMAZON-02, US
14618 262 804 AMAZON-AES, US
36914 245 257 KENET-AS, KE
8895 131 136 ISU Internet Services Unit ISU, SA
8075 69 371 MICROSOFT-CORP-MSN-AS-BLOCK, US
23024 52 113 OCDE, US
32440 37 59 LONI, US
327700 33 39 MoRENet, MZ
28614 32 38 Fundacao Universidade Regional de Blumenau, BR
46115 32 35 LUTHER, US
Complete listing at https://bgp.nsrc.org/REN/CENIC/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:3 2:1 3:118 4:2 5:20 6:4
8:2 12:1 13:183 14:89 15:128 16:109
18:238 23:46 24:3 31:7 34:2 35:14
38:9 40:2 41:118 42:10 44:8 45:64
46:11 47:1 49:9 50:11 52:876 54:262
58:2 59:19 60:4 61:3 62:17 63:42
64:149 65:38 66:90 67:65 68:18 69:52
70:25 71:46 72:18 74:79 76:47 77:11
78:3 79:10 80:13 81:26 82:7 83:6
84:8 85:44 86:10 87:2 88:1 89:13
91:57 92:4 93:4 94:8 95:2 96:6
97:2 98:13 99:77 101:2 102:32 103:299
104:118 107:4 108:82 109:11 111:17 113:4
114:23 115:1 116:10 117:61 118:32 119:18
121:28 122:11 123:8 124:39 125:4 128:87
129:52 130:154 131:74 132:59 133:152 134:107
135:3 136:212 137:151 138:15 139:18 140:43
141:5 142:60 143:35 144:66 145:5 146:132
147:68 148:203 149:17 150:50 151:18 152:141
153:14 154:31 155:81 156:71 157:30 158:46
159:156 160:35 161:47 162:71 163:94 164:22
165:56 166:2 167:25 168:173 169:12 170:163
171:1 172:12 173:26 174:2 175:26 176:13
177:5 178:2 179:13 180:15 181:1 182:1
184:4 185:103 186:3 187:17 188:15 189:3
190:19 191:13 192:1547 193:312 194:134 195:87
196:203 197:162 198:548 199:351 200:340 201:38
202:638 203:443 204:393 205:165 206:219 207:201
208:118 209:150 210:190 211:14 212:174 213:17
214:8 216:175 217:10 218:22 219:5 220:16
222:2 223:14
End of report
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