Global R&E Routing Table Report 22:00 GMT Tue 17 Aug, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/ Analysis Summary ---------------- BGP routing table entries examined: 22241 Prefixes after maximum aggregation (per Origin AS): 12250 Deaggregation factor: 1.82 Unique aggregates announced (without unneeded subnets): 14494 Total ASes present in the Internet Routing Table: 2772 Prefixes per ASN: 8.02 Origin-only ASes present in the Internet Routing Table: 2374 Origin ASes announcing only one prefix: 1092 Transit ASes present in the Internet Routing Table: 398 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 3.3 Max AS path length visible: 14 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 24 Number of instances of unregistered ASNs: 24 Number of 32-bit ASNs allocated by the RIRs: 36911 Number of 32-bit ASNs visible in the Routing Table: 607 Prefixes from 32-bit ASNs in the Routing Table: 1763 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: 289002393 Equivalent to 17 /8s, 57 /16s and 211 /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: 2915 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4761 Total APNIC prefixes after maximum aggregation: 2345 APNIC Deaggregation factor: 2.03 Prefixes being announced from the APNIC address blocks: 4820 Unique aggregates announced from the APNIC address blocks: 2736 APNIC Region origin ASes present in the Internet Routing Table: 574 APNIC Prefixes per ASN: 8.40 APNIC Region origin ASes announcing only one prefix: 242 APNIC Region transit ASes present in the Internet Routing Table: 64 Average APNIC Region AS path length visible: 3.8 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 218 Number of APNIC addresses announced to Internet: 46963520 Equivalent to 2 /8s, 204 /16s and 155 /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, 131072-147769 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: 11697 Total ARIN prefixes after maximum aggregation: 6371 ARIN Deaggregation factor: 1.84 Prefixes being announced from the ARIN address blocks: 11571 Unique aggregates announced from the ARIN address blocks: 7777 ARIN Region origin ASes present in the Internet Routing Table: 1223 ARIN Prefixes per ASN: 9.46 ARIN Region origin ASes announcing only one prefix: 434 ARIN Region transit ASes present in the Internet Routing Table: 163 Average ARIN Region AS path length visible: 2.9 Max ARIN Region AS path length visible: 13 Number of ARIN region 32-bit ASNs visible in the Routing Table: 159 Number of ARIN addresses announced to Internet: 174771609 Equivalent to 10 /8s, 106 /16s and 205 /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: 3395 Total RIPE prefixes after maximum aggregation: 2738 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3471 Unique aggregates announced from the RIPE address blocks: 2858 RIPE Region origin ASes present in the Internet Routing Table: 672 RIPE Prefixes per ASN: 5.17 RIPE Region origin ASes announcing only one prefix: 323 RIPE Region transit ASes present in the Internet Routing Table: 111 Average RIPE Region AS path length visible: 3.6 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 129 Number of RIPE addresses announced to Internet: 59703680 Equivalent to 3 /8s, 143 /16s and 1 /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: 1473 Total LACNIC prefixes after maximum aggregation: 592 LACNIC Deaggregation factor: 2.49 Prefixes being announced from the LACNIC address blocks: 1478 Unique aggregates announced from the LACNIC address blocks: 819 LACNIC Region origin ASes present in the Internet Routing Table: 177 LACNIC Prefixes per ASN: 8.35 LACNIC Region origin ASes announcing only one prefix: 71 LACNIC Region transit ASes present in the Internet Routing Table: 26 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 76 Number of LACNIC addresses announced to Internet: 4744512 Equivalent to 0 /8s, 72 /16s and 101 /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: 891 Total AfriNIC prefixes after maximum aggregation: 186 AfriNIC Deaggregation factor: 4.79 Prefixes being announced from the AfriNIC address blocks: 894 Unique aggregates announced from the AfriNIC address blocks: 297 AfriNIC Region origin ASes present in the Internet Routing Table: 49 AfriNIC Prefixes per ASN: 18.24 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: 3.1 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2817280 Equivalent to 0 /8s, 42 /16s and 253 /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 620 2156 457 SINET-AS Research Organization of Infor 7497 435 214 25 CSTNET-AS-AP Computer Network Informati 1237 188 74 135 KREONET-AS-KR KISTI, KR 7575 180 330 126 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 55824 129 19 23 NKN-CORE-NW NKN Core Network, IN 4538 125 4192 72 ERX-CERNET-BKB China Education and Rese 4621 81 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/Internet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2507 4447 947 AMAZON-02, US 14618 511 3967 381 AMAZON-AES, US 7896 240 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA 668 210 702 181 DNIC-AS-00668, US 8075 207 11189 185 MICROSOFT-CORP-MSN-AS-BLOCK, US 5786 201 16 1 UPRENET, PR 2152 156 507 85 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 1 120 1 41 LVLT-1, US Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 786 186 1763 184 JANET Jisc Services Limited, GB 8895 173 24 4 ISU Internet Services Unit ISU, SA 559 116 550 107 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 66 647 61 FR-RENATER Reseau National de telecommu 2614 62 32 59 ROEDUNET, RO 1930 57 81 52 RCCN Fundacao para a Ciencia e a Tecnol Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 203 207 42 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 58 102 38 Fundacao Carlos Chagas Filho de Amparo 61468 45 3 15 CEDIA, EC 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 4270 40 16 1 Red de Interconexion Universitaria, AR 28614 38 2 2 Fundacao Universidade Regional de Blume 28571 37 26 15 UNIVERSIDADE DE SAO PAULO, BR Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 329 319 74 TENET-1, ZA 327687 135 28 3 RENU, UG 36914 97 82 3 KENET-AS, KE 2561 72 5 31 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 39 16 1 MoRENet, MZ 37215 31 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37074 11 8 2 UG-AS, GH 37182 11 8 1 TERNET, TZ Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 2507 4447 947 AMAZON-02, US 2907 620 2156 457 SINET-AS Research Organization of Infor 14618 511 3967 381 AMAZON-AES, US 7497 435 214 25 CSTNET-AS-AP Computer Network Informati 2018 329 319 74 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 7896 240 51 7 NU-AS, US 376 234 180 158 RISQ-AS, CA 668 210 702 181 DNIC-AS-00668, US 8075 207 11189 185 MICROSOFT-CORP-MSN-AS-BLOCK, US Complete listing at https://bgp.nsrc.org/REN/Internet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 435 410 CSTNET-AS-AP Computer Network Information Cente 2018 329 255 TENET-1, ZA 7896 240 233 NU-AS, US 5786 201 200 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 173 169 ISU Internet Services Unit ISU, SA 2907 620 163 SINET-AS Research Organization of Information a 1916 203 161 Associacao Rede Nacional de Ensino e Pesquisa, 18558 137 133 NETBLK-RCOEK, US 327687 135 132 RENU, UG Complete listing at https://bgp.nsrc.org/REN/Internet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 36843 UNALLOCATED 64.56.80.0/23 11096 FLORIDANET, US 19658 UNALLOCATED 65.205.131.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.20.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 108.59.23.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.183.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 131.91.252.0/22 11096 FLORIDANET, US 14822 UNALLOCATED 140.163.0.0/16 10466 MAGPI, US 14822 UNALLOCATED 140.163.0.0/17 10466 MAGPI, US 14822 UNALLOCATED 140.163.6.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.64.0/24 10466 MAGPI, US Complete listing at https://bgp.nsrc.org/REN/Internet2/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/Internet2/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.88.99.0/24 Origin: 1103 SURFNET-NL SURFnet, The Netherlands, NL Transit: 11537 INTERNET2-RESEARCH-EDU, US 192.107.242.0/24 Origin: 394784 UNASSIGNED Transit: 40831 PHS, US 198.135.168.0/24 Origin: 14618 AMAZON-AES, US Transit: 16509 AMAZON-02, US 204.194.253.0/24 Origin: 46788 UNASSIGNED Transit: 2381 WISCNET1-AS, US Complete listing at https://bgp.nsrc.org/REN/Internet2/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 /15:195 /16:2139 /17:451 /18:455 /19:613 /20:983 /21:1013 /22:1561 /23:1699 /24:12634 /25:79 /26:65 /27:119 /28:1 /29:49 /30:3 /31:25 /32:1 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 683 2507 AMAZON-02, US 8895 168 173 ISU Internet Services Unit ISU, SA 14618 167 511 AMAZON-AES, US 36914 84 97 KENET-AS, KE 23024 53 56 OCDE, US 1 35 120 LVLT-1, US 327700 33 39 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 Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 3:79 4:2 5:16 6:4 8:2 12:1 13:213 14:84 15:22 18:41 23:29 24:6 31:6 37:6 38:9 40:2 41:141 42:25 44:5 45:69 46:10 47:1 49:10 50:5 52:611 54:148 58:2 59:20 60:4 61:3 62:7 63:38 64:122 65:7 66:52 67:56 68:18 69:47 70:9 71:17 72:16 74:39 75:128 76:165 77:8 78:3 79:10 80:14 81:29 82:5 83:7 84:5 85:36 86:9 87:1 88:1 89:10 91:54 92:1 93:19 94:4 95:6 96:6 97:1 98:8 99:178 101:2 102:10 103:312 104:49 106:1 107:8 108:19 109:8 110:3 111:21 112:4 113:1 114:23 116:5 117:61 118:32 119:19 121:26 122:11 123:8 124:42 125:13 128:80 129:180 130:125 131:104 132:60 133:137 134:94 135:1 136:204 137:153 138:11 139:16 140:51 141:3 142:61 143:41 144:70 146:126 147:73 148:167 149:16 150:46 151:7 152:77 153:11 154:25 155:57 156:66 157:30 158:48 159:120 160:32 161:19 162:50 163:70 164:48 165:61 166:1 167:21 168:169 169:10 170:93 171:1 172:10 173:19 174:1 175:32 176:12 177:9 178:3 179:13 180:21 181:11 182:6 184:8 185:56 186:3 187:18 188:14 189:6 190:47 191:36 192:1492 193:248 194:125 195:88 196:170 197:5 198:507 199:306 200:255 201:39 202:641 203:434 204:387 205:203 206:198 207:190 208:87 209:131 210:184 211:14 212:169 213:13 214:7 216:115 217:15 218:26 219:8 220:16 222:4 223:2 End of report