Global R&E Routing Table Report 22:20 GMT Tue 07 Sep, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/ESnet/ Analysis Summary ---------------- BGP routing table entries examined: 19231 Prefixes after maximum aggregation (per Origin AS): 11141 Deaggregation factor: 1.73 Unique aggregates announced (without unneeded subnets): 12731 Total ASes present in the Internet Routing Table: 2821 Prefixes per ASN: 6.82 Origin-only ASes present in the Internet Routing Table: 2405 Origin ASes announcing only one prefix: 1098 Transit ASes present in the Internet Routing Table: 416 Transit-only ASes present in the Internet Routing Table: 74 Average AS path length visible in the Internet Routing Table: 3.8 Max AS path length visible: 16 Max AS path prepend of ASN (397422) 11 Prefixes from unregistered ASNs in the Routing Table: 30 Number of instances of unregistered ASNs: 30 Number of 32-bit ASNs allocated by the RIRs: 37140 Number of 32-bit ASNs visible in the Routing Table: 542 Prefixes from 32-bit ASNs in the Routing Table: 1592 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: 3 Number of addresses announced to Internet: 179626496 Equivalent to 10 /8s, 180 /16s and 226 /24s Percentage of available address space announced: 4.9 Percentage of allocated address space announced: 4.9 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: 2271 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4180 Total APNIC prefixes after maximum aggregation: 2109 APNIC Deaggregation factor: 1.98 Prefixes being announced from the APNIC address blocks: 4165 Unique aggregates announced from the APNIC address blocks: 2431 APNIC Region origin ASes present in the Internet Routing Table: 467 APNIC Prefixes per ASN: 8.92 APNIC Region origin ASes announcing only one prefix: 184 APNIC Region transit ASes present in the Internet Routing Table: 56 Average APNIC Region AS path length visible: 3.8 Max APNIC Region AS path length visible: 12 Number of APNIC region 32-bit ASNs visible in the Routing Table: 136 Number of APNIC addresses announced to Internet: 36065536 Equivalent to 2 /8s, 38 /16s and 81 /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: 9774 Total ARIN prefixes after maximum aggregation: 5691 ARIN Deaggregation factor: 1.72 Prefixes being announced from the ARIN address blocks: 9763 Unique aggregates announced from the ARIN address blocks: 6569 ARIN Region origin ASes present in the Internet Routing Table: 1448 ARIN Prefixes per ASN: 6.74 ARIN Region origin ASes announcing only one prefix: 529 ARIN Region transit ASes present in the Internet Routing Table: 202 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: 201 Number of ARIN addresses announced to Internet: 83158784 Equivalent to 4 /8s, 244 /16s and 231 /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: 3076 Total RIPE prefixes after maximum aggregation: 2618 RIPE Deaggregation factor: 1.17 Prefixes being announced from the RIPE address blocks: 3130 Unique aggregates announced from the RIPE address blocks: 2747 RIPE Region origin ASes present in the Internet Routing Table: 624 RIPE Prefixes per ASN: 5.02 RIPE Region origin ASes announcing only one prefix: 301 RIPE Region transit ASes present in the Internet Routing Table: 104 Average RIPE Region AS path length visible: 3.7 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 121 Number of RIPE addresses announced to Internet: 53714432 Equivalent to 3 /8s, 51 /16s and 158 /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: 1385 Total LACNIC prefixes after maximum aggregation: 553 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1383 Unique aggregates announced from the LACNIC address blocks: 754 LACNIC Region origin ASes present in the Internet Routing Table: 158 LACNIC Prefixes per ASN: 8.75 LACNIC Region origin ASes announcing only one prefix: 62 LACNIC Region transit ASes present in the Internet Routing Table: 21 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 11 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 61 Number of LACNIC addresses announced to Internet: 4124160 Equivalent to 0 /8s, 62 /16s and 238 /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: 786 Total AfriNIC prefixes after maximum aggregation: 157 AfriNIC Deaggregation factor: 5.01 Prefixes being announced from the AfriNIC address blocks: 787 Unique aggregates announced from the AfriNIC address blocks: 227 AfriNIC Region origin ASes present in the Internet Routing Table: 45 AfriNIC Prefixes per ASN: 17.49 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 3.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 23 Number of AfriNIC addresses announced to Internet: 2562816 Equivalent to 0 /8s, 39 /16s and 27 /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 608 2156 456 SINET-AS Research Organization of Infor 7497 434 214 25 CSTNET-AS-AP Computer Network Informati 1237 185 74 135 KREONET-AS-KR KISTI, KR 7575 180 330 126 AARNET-AS-AP Australian Academic and Re 58647 164 18 2 KAGAWAU-AS Kagawa University, JP 4538 109 2368 69 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 38280 50 3 2 MONASHUNI-MY-AS-AP Monash University Su Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 241 51 7 NU-AS, US 376 228 180 157 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 668 199 715 165 DNIC-AS-00668, US 2152 158 507 88 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 114 329 88 AS270, US 23024 114 7 17 OCDE, US 2920 108 34 6 LACOE, US 11404 87 174 71 AS-WAVE-1, US Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 274 1966 240 DFN Verein zur Foerderung eines Deutsch 786 186 1763 184 JANET Jisc Services Limited, GB 559 116 550 107 SWITCH Peering requests: peering@switch 1103 95 1263 82 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 56 80 51 RCCN Fundacao para a Ciencia e a Tecnol 1653 52 151 49 SUNET SUNET Swedish University Network, Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 174 207 40 Associacao Rede Nacional de Ensino e Pe 28391 152 10 66 Universidad Juarez Autonoma de Tabasco, 11340 92 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 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 4270 42 16 1 Red de Interconexion Universitaria, AR 61468 41 3 15 CEDIA, EC 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/ESnet/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 337 319 73 TENET-1, ZA 327687 134 28 3 RENU, UG 36914 102 82 3 KENET-AS, KE 8094 55 48 4 PUKNET, ZA 327700 36 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37074 11 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, ZA 2561 6 0 5 EUN, EG Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 608 2156 456 SINET-AS Research Organization of Infor 7497 434 214 25 CSTNET-AS-AP Computer Network Informati 2018 337 319 73 TENET-1, ZA 680 274 1966 240 DFN Verein zur Foerderung eines Deutsch 7896 241 51 7 NU-AS, US 376 228 180 157 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 668 199 715 165 DNIC-AS-00668, US 786 186 1763 184 JANET Jisc Services Limited, GB 1237 185 74 135 KREONET-AS-KR KISTI, KR Complete listing at https://bgp.nsrc.org/REN/ESnet/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 434 409 CSTNET-AS-AP Computer Network Information Cente 2018 337 264 TENET-1, ZA 7896 241 234 NU-AS, US 5786 201 200 UPRENET, PR 58647 164 162 KAGAWAU-AS Kagawa University, JP 1916 174 134 Associacao Rede Nacional de Ensino e Pesquisa, 18558 137 133 NETBLK-RCOEK, US 327687 134 131 RENU, UG 2920 108 102 LACOE, US 36914 102 99 KENET-AS, KE Complete listing at https://bgp.nsrc.org/REN/ESnet/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 19176 UNALLOCATED 63.81.146.0/24 32278 GETWIRELESS, US 19176 UNALLOCATED 63.108.136.0/23 32278 GETWIRELESS, US 19176 UNALLOCATED 63.108.136.0/24 32278 GETWIRELESS, US 19176 UNALLOCATED 63.108.137.0/24 32278 GETWIRELESS, US 19176 UNALLOCATED 63.108.138.0/24 32278 GETWIRELESS, US 19176 UNALLOCATED 63.127.160.0/22 32278 GETWIRELESS, US 19176 UNALLOCATED 63.127.161.0/24 32278 GETWIRELESS, US 19176 UNALLOCATED 63.127.162.0/24 32278 GETWIRELESS, US 19176 UNALLOCATED 63.127.163.0/24 32278 GETWIRELESS, US 19176 UNALLOCATED 63.127.168.0/21 32278 GETWIRELESS, US Complete listing at https://bgp.nsrc.org/REN/ESnet/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 UNASSIGNED 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 192.107.242.0/24 Origin: 394784 UNASSIGNED 192.107.242.0/24 Transit: 40831 PHS, US 205.166.145.0/24 Origin: 394784 UNASSIGNED 205.166.145.0/24 Transit: 40831 PHS, US Complete listing at https://bgp.nsrc.org/REN/ESnet/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 /9:0 /10:0 /11:0 /12:0 /13:0 /14:37 /15:118 /16:2059 /17:392 /18:434 /19:619 /20:951 /21:981 /22:1576 /23:1634 /24:10430 /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 36914 89 102 KENET-AS, KE 30041 64 64 RACE, US 23024 53 114 OCDE, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 18530 31 79 ISOMEDIA-1, US 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 327700 30 36 MoRENet, MZ 16713 29 36 NOANET-WA, US 18632 29 55 VOLCANO-VISION, US Complete listing at https://bgp.nsrc.org/REN/ESnet/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:5 5:15 6:4 8:5 12:1 18:41 23:18 24:5 31:6 35:1 37:6 38:19 40:1 41:118 42:8 44:5 45:34 46:7 47:1 49:6 50:12 52:5 58:1 59:20 60:4 61:3 62:6 63:86 64:128 65:13 66:76 67:59 68:19 69:58 70:1 71:1 72:50 74:33 75:1 76:40 77:6 78:3 79:10 80:15 81:30 82:3 83:7 84:5 85:26 86:3 87:2 88:1 89:10 91:34 92:1 93:19 94:5 95:5 96:5 97:1 98:3 101:2 102:6 103:186 104:87 106:1 107:30 108:10 109:3 110:3 111:20 112:4 114:23 116:5 117:61 118:32 119:18 121:25 122:8 123:8 124:42 125:7 128:81 129:177 130:96 131:95 132:60 133:138 134:97 136:213 137:144 138:10 139:5 140:46 141:3 142:42 143:35 144:32 146:201 147:64 148:161 149:14 150:41 151:7 152:80 153:11 154:22 155:52 156:65 157:25 158:10 159:117 160:31 161:55 162:45 163:62 164:23 165:54 166:2 167:16 168:131 169:9 170:65 171:1 172:1 173:23 174:7 175:32 177:9 178:1 179:10 180:6 181:11 182:5 184:7 185:36 186:3 187:17 188:12 189:6 190:40 191:31 192:1477 193:198 194:122 195:56 196:167 197:5 198:545 199:323 200:252 201:39 202:582 203:415 204:406 205:190 206:216 207:178 208:120 209:140 210:179 211:14 212:39 213:4 214:7 216:96 217:15 218:25 219:8 220:13 222:5 223:2 End of report