Global R&E Routing Table Report 22:05 GMT Thu 11 Nov, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CENIC/ Analysis Summary ---------------- BGP routing table entries examined: 22348 Prefixes after maximum aggregation (per Origin AS): 12295 Deaggregation factor: 1.82 Unique aggregates announced (without unneeded subnets): 14597 Total ASes present in the Internet Routing Table: 2797 Prefixes per ASN: 7.99 Origin-only ASes present in the Internet Routing Table: 2408 Origin ASes announcing only one prefix: 1111 Transit ASes present in the Internet Routing Table: 389 Transit-only ASes present in the Internet Routing Table: 55 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: 15 Number of instances of unregistered ASNs: 15 Number of 32-bit ASNs allocated by the RIRs: 37783 Number of 32-bit ASNs visible in the Routing Table: 623 Prefixes from 32-bit ASNs in the Routing Table: 1817 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: 7 Number of addresses announced to Internet: 289720320 Equivalent to 17 /8s, 68 /16s and 200 /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: 2854 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4686 Total APNIC prefixes after maximum aggregation: 2328 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4751 Unique aggregates announced from the APNIC address blocks: 2716 APNIC Region origin ASes present in the Internet Routing Table: 583 APNIC Prefixes per ASN: 8.15 APNIC Region origin ASes announcing only one prefix: 249 APNIC Region transit ASes present in the Internet Routing Table: 65 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 12 Number of APNIC region 32-bit ASNs visible in the Routing Table: 225 Number of APNIC addresses announced to Internet: 46781952 Equivalent to 2 /8s, 201 /16s and 214 /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: 11841 Total ARIN prefixes after maximum aggregation: 6407 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 11700 Unique aggregates announced from the ARIN address blocks: 7841 ARIN Region origin ASes present in the Internet Routing Table: 1252 ARIN Prefixes per ASN: 9.35 ARIN Region origin ASes announcing only one prefix: 445 ARIN Region transit ASes present in the Internet Routing Table: 165 Average ARIN Region AS path length visible: 3.6 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 160 Number of ARIN addresses announced to Internet: 175638784 Equivalent to 10 /8s, 120 /16s and 9 /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: 3374 Total RIPE prefixes after maximum aggregation: 2741 RIPE Deaggregation factor: 1.23 Prefixes being announced from the RIPE address blocks: 3453 Unique aggregates announced from the RIPE address blocks: 2873 RIPE Region origin ASes present in the Internet Routing Table: 669 RIPE Prefixes per ASN: 5.16 RIPE Region origin ASes announcing only one prefix: 323 RIPE Region transit ASes present in the Internet Routing Table: 104 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: 132 Number of RIPE addresses announced to Internet: 59814400 Equivalent to 3 /8s, 144 /16s and 178 /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: 1511 Total LACNIC prefixes after maximum aggregation: 619 LACNIC Deaggregation factor: 2.44 Prefixes being announced from the LACNIC address blocks: 1514 Unique aggregates announced from the LACNIC address blocks: 865 LACNIC Region origin ASes present in the Internet Routing Table: 182 LACNIC Prefixes per ASN: 8.32 LACNIC Region origin ASes announcing only one prefix: 72 LACNIC Region transit ASes present in the Internet Routing Table: 25 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: 80 Number of LACNIC addresses announced to Internet: 4597504 Equivalent to 0 /8s, 70 /16s and 39 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-272796 + 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: 921 Total AfriNIC prefixes after maximum aggregation: 193 AfriNIC Deaggregation factor: 4.77 Prefixes being announced from the AfriNIC address blocks: 923 Unique aggregates announced from the AfriNIC address blocks: 295 AfriNIC Region origin ASes present in the Internet Routing Table: 51 AfriNIC Prefixes per ASN: 18.10 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 13 Average AfriNIC Region AS path length visible: 4.1 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26 Number of AfriNIC addresses announced to Internet: 2885888 Equivalent to 0 /8s, 44 /16s and 9 /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 610 2157 457 SINET-AS Research Organization of Infor 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 1237 185 74 135 KREONET-AS-KR KISTI, KR 7575 176 329 122 AARNET-AS-AP Australian Academic and Re 58647 164 18 2 KAGAWAU-AS Kagawa University, JP 4538 127 4192 72 ERX-CERNET-BKB China Education and Rese 55824 127 19 22 NKN-CORE-NW NKN Core Network, IN 4621 80 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 2523 4281 870 AMAZON-02, US 14618 542 3985 413 AMAZON-AES, US 7896 250 51 7 NU-AS, US 668 211 702 182 DNIC-AS-00668, US 8075 206 11189 185 MICROSOFT-CORP-MSN-AS-BLOCK, US 376 204 178 153 RISQ-AS, CA 5786 195 16 1 UPRENET, PR 2152 160 507 88 CSUNET-NW, US 18558 136 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 680 275 1998 237 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@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 59 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 177 207 41 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 94 24 54 Red Universitaria Nacional, CL 1251 65 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 52286 53 4 31 Columbus Networks Guatemala, GT 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 4270 43 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 343 319 73 TENET-1, ZA 327687 138 28 3 RENU, UG 36914 100 82 3 KENET-AS, KE 2561 73 5 32 EUN, EG 8094 49 48 9 PUKNET, ZA 327700 43 16 1 MoRENet, MZ 37215 33 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 12 8 1 TERNET, TZ 37074 11 8 2 UG-AS, GH 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 2523 4281 870 AMAZON-02, US 2907 610 2157 457 SINET-AS Research Organization of Infor 14618 542 3985 413 AMAZON-AES, US 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 2018 343 319 73 TENET-1, ZA 680 275 1998 237 DFN Verein zur Foerderung eines Deutsch 7896 250 51 7 NU-AS, US 668 211 702 182 DNIC-AS-00668, US 8075 206 11189 185 MICROSOFT-CORP-MSN-AS-BLOCK, US 376 204 178 153 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 430 406 CSTNET-AS-AP Computer Network Information Cente 2018 343 270 TENET-1, ZA 7896 250 243 NU-AS, US 5786 195 194 UPRENET, PR 58647 164 162 KAGAWAU-AS Kagawa University, JP 2907 610 153 SINET-AS Research Organization of Information a 8895 143 139 ISU Internet Services Unit ISU, SA 1916 177 136 Associacao Rede Nacional de Ensino e Pesquisa, 327687 138 135 RENU, UG 18558 136 132 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 29955 UNALLOCATED 192.104.1.0/24 2495 KANREN, US 394784 UNALLOCATED 192.107.242.0/24 40831 PHS, US 29955 UNALLOCATED 198.252.8.0/21 2495 KANREN, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 396334 UNALLOCATED 205.143.136.0/21 5078 ONENET-AS-1, US 396334 UNALLOCATED 205.143.136.0/24 5078 ONENET-AS-1, US 396334 UNALLOCATED 205.143.137.0/24 5078 ONENET-AS-1, US 396334 UNALLOCATED 205.143.138.0/24 5078 ONENET-AS-1, US 396334 UNALLOCATED 205.143.139.0/24 5078 ONENET-AS-1, US Complete listing at https://bgp.nsrc.org/REN/CENIC/data-badAS Prefixes from private and non-routed address space (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-dsua 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 192.107.242.0/24 Origin: 394784 UNASSIGNED 192.107.242.0/24 Transit: 40831 PHS, 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 /12:29 /13:34 /14:81 /15:200 /16:2150 /17:449 /18:471 /19:612 /20:999 /21:1008 /22:1587 /23:1713 /24:13003 /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 663 2523 AMAZON-02, US 14618 178 542 AMAZON-AES, US 8895 138 143 ISU Internet Services Unit ISU, SA 36914 86 100 KENET-AS, KE 23024 53 113 OCDE, US 327700 37 43 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) ---------------------------------------------- 1:5 3:76 4:2 5:16 6:4 8:2 12:1 13:209 14:83 15:32 18:42 23:34 24:6 31:6 35:1 37:6 38:9 40:3 41:150 42:8 44:5 45:78 46:8 47:1 49:10 50:9 52:661 54:170 58:1 59:20 60:4 61:3 62:7 63:42 64:124 65:9 66:69 67:61 68:18 69:47 70:7 71:9 72:20 74:40 75:128 76:164 77:8 78:3 79:10 80:17 81:27 82:6 83:7 84:4 85:37 86:9 87:1 88:1 89:12 91:55 92:1 93:19 94:4 95:6 96:6 97:1 98:11 99:176 101:6 102:16 103:335 104:108 106:1 107:24 108:21 109:11 110:3 111:21 112:4 113:1 114:23 116:5 117:61 118:32 119:20 121:26 122:11 123:8 124:39 125:4 128:83 129:181 130:111 131:102 132:61 133:138 134:100 135:1 136:199 137:154 138:9 139:16 140:50 141:3 142:61 143:37 144:65 146:126 147:80 148:167 149:20 150:48 151:8 152:79 153:11 154:24 155:59 156:70 157:29 158:45 159:120 160:32 161:21 162:54 163:74 164:52 165:60 166:1 167:23 168:201 169:10 170:114 171:1 172:10 173:20 174:1 175:31 176:12 177:10 178:3 179:13 180:21 181:12 182:6 184:6 185:57 186:3 187:18 188:14 189:3 190:54 191:37 192:1500 193:258 194:123 195:87 196:181 197:5 198:541 199:313 200:253 201:39 202:642 203:427 204:359 205:199 206:213 207:192 208:94 209:141 210:184 211:14 212:172 213:13 214:7 216:133 217:14 218:25 219:8 220:17 222:5 223:2 End of report