Global R&E Routing Table Report 22:00 GMT Wed 05 May, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Internet2/ Analysis Summary ---------------- BGP routing table entries examined: 22344 Prefixes after maximum aggregation (per Origin AS): 12184 Deaggregation factor: 1.83 Unique aggregates announced (without unneeded subnets): 14397 Total ASes present in the Internet Routing Table: 2770 Prefixes per ASN: 8.07 Origin-only ASes present in the Internet Routing Table: 2374 Origin ASes announcing only one prefix: 1094 Transit ASes present in the Internet Routing Table: 396 Transit-only ASes present in the Internet Routing Table: 62 Average AS path length visible in the Internet Routing Table: 3.3 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: 35928 Number of 32-bit ASNs visible in the Routing Table: 587 Prefixes from 32-bit ASNs in the Routing Table: 1644 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: 2 Number of addresses announced to Internet: 280784824 Equivalent to 16 /8s, 188 /16s and 111 /24s Percentage of available address space announced: 7.6 Percentage of allocated address space announced: 7.6 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: 3151 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4691 Total APNIC prefixes after maximum aggregation: 2371 APNIC Deaggregation factor: 1.98 Prefixes being announced from the APNIC address blocks: 4740 Unique aggregates announced from the APNIC address blocks: 2762 APNIC Region origin ASes present in the Internet Routing Table: 568 APNIC Prefixes per ASN: 8.35 APNIC Region origin ASes announcing only one prefix: 242 APNIC Region transit ASes present in the Internet Routing Table: 63 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: 210 Number of APNIC addresses announced to Internet: 47143488 Equivalent to 2 /8s, 207 /16s and 90 /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, 131072-143673 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: 11547 Total ARIN prefixes after maximum aggregation: 6238 ARIN Deaggregation factor: 1.85 Prefixes being announced from the ARIN address blocks: 11441 Unique aggregates announced from the ARIN address blocks: 7651 ARIN Region origin ASes present in the Internet Routing Table: 1232 ARIN Prefixes per ASN: 9.29 ARIN Region origin ASes announcing only one prefix: 437 ARIN Region transit ASes present in the Internet Routing Table: 165 Average ARIN Region AS path length visible: 3.0 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 146 Number of ARIN addresses announced to Internet: 166217656 Equivalent to 9 /8s, 232 /16s and 71 /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: 3437 Total RIPE prefixes after maximum aggregation: 2776 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3500 Unique aggregates announced from the RIPE address blocks: 2845 RIPE Region origin ASes present in the Internet Routing Table: 675 RIPE Prefixes per ASN: 5.19 RIPE Region origin ASes announcing only one prefix: 318 RIPE Region transit ASes present in the Internet Routing Table: 110 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: 130 Number of RIPE addresses announced to Internet: 59808640 Equivalent to 3 /8s, 144 /16s and 155 /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: 1465 Total LACNIC prefixes after maximum aggregation: 594 LACNIC Deaggregation factor: 2.47 Prefixes being announced from the LACNIC address blocks: 1469 Unique aggregates announced from the LACNIC address blocks: 831 LACNIC Region origin ASes present in the Internet Routing Table: 180 LACNIC Prefixes per ASN: 8.16 LACNIC Region origin ASes announcing only one prefix: 74 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 12 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 77 Number of LACNIC addresses announced to Internet: 4755520 Equivalent to 0 /8s, 72 /16s and 144 /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: 1189 Total AfriNIC prefixes after maximum aggregation: 191 AfriNIC Deaggregation factor: 6.23 Prefixes being announced from the AfriNIC address blocks: 1192 Unique aggregates announced from the AfriNIC address blocks: 306 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 23.84 AfriNIC Region origin ASes announcing only one prefix: 23 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 3.3 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 24 Number of AfriNIC addresses announced to Internet: 2859008 Equivalent to 0 /8s, 43 /16s and 160 /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 443 233 33 CSTNET-AS-AP Computer Network Informati 1237 189 75 139 KREONET-AS-KR KISTI, KR 7575 187 331 133 AARNET-AS-AP Australian Academic and Re 58647 176 18 2 KAGAWAU-AS Kagawa University, JP 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4538 123 4192 72 ERX-CERNET-BKB China Education and Rese 4621 83 37 11 UNINET-AS-AP UNINET-, TH 23570 59 5 11 INCHEON-AS-KR UNIVERSITY OF INCHEON, KR 1659 57 1450 34 ERX-TANET-ASN1 Taiwan Academic Network 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 2356 4296 844 AMAZON-02, US 14618 475 3980 351 AMAZON-AES, US 7896 260 51 7 NU-AS, US 376 236 180 158 RISQ-AS, CA 668 209 702 180 DNIC-AS-00668, US 5786 201 16 1 UPRENET, PR 8075 195 9141 181 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 160 507 92 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 1 117 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 786 187 1787 185 JANET Jisc Services Limited, GB 8895 172 24 4 ISU Internet Services Unit (ISU), SA 559 116 550 107 SWITCH Peering requests: (peering@switc 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 62 FR-RENATER Reseau National de telecommu 2614 62 32 59 ROEDUNET, RO 1930 56 82 51 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 204 215 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 67 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 19611 45 17 2 Associacao Antonio Vieira - Unisinos, B 61468 45 3 15 CEDIA, EC 4270 44 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 36914 412 82 3 KENET-AS, KE 2018 325 319 74 TENET-1, ZA 327687 131 28 3 RENU, UG 2561 74 5 34 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 36 16 1 MoRENet, MZ 37215 29 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37074 11 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 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 2356 4296 844 AMAZON-02, US 2907 620 2156 457 SINET-AS Research Organization of Infor 14618 475 3980 351 AMAZON-AES, US 7497 443 233 33 CSTNET-AS-AP Computer Network Informati 36914 412 82 3 KENET-AS, KE 2018 325 319 74 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 7896 260 51 7 NU-AS, US 376 236 180 158 RISQ-AS, CA 668 209 702 180 DNIC-AS-00668, 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 443 410 CSTNET-AS-AP Computer Network Information Cente 36914 412 409 KENET-AS, KE 7896 260 253 NU-AS, US 2018 325 251 TENET-1, ZA 5786 201 200 UPRENET, PR 58647 176 174 KAGAWAU-AS Kagawa University, JP 8895 172 168 ISU Internet Services Unit (ISU), SA 2907 620 163 SINET-AS Research Organization of Information a 1916 204 163 Associacao Rede Nacional de Ensino e Pesquisa, 18558 136 132 NETBLK-RCOEK, US 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 36843 UNALLOCATED 146.201.218.0/24 11096 FLORIDANET, US 36843 UNALLOCATED 146.201.219.0/24 11096 FLORIDANET, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 36843 UNALLOCATED 162.223.23.0/24 11096 FLORIDANET, 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 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 /12:21 /13:33 /14:81 /15:195 /16:2152 /17:456 /18:461 /19:623 /20:977 /21:1024 /22:1580 /23:1676 /24:12731 /25:84 /26:66 /27:125 /28:1 /29:46 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 649 2356 AMAZON-02, US 36914 384 412 KENET-AS, KE 8895 167 172 ISU Internet Services Unit (ISU), SA 14618 153 475 AMAZON-AES, US 23024 53 56 OCDE, US 1 32 117 LVLT-1, US 28614 32 38 Fundacao Universidade Regional de Blumenau, BR 25977 31 45 HCCS, US 263282 30 37 FUNDACAO UNIVERSIDADE DO OESTE DE SANTA CATARIN 327700 30 36 MoRENet, MZ Complete listing at https://bgp.nsrc.org/REN/Internet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 3:68 4:2 5:15 6:4 8:2 12:1 13:217 14:84 15:11 18:41 23:22 24:6 31:6 34:1 37:6 38:9 40:3 41:230 42:25 44:5 45:69 46:9 47:1 49:10 50:4 52:611 54:115 58:2 59:20 60:4 61:4 62:7 63:34 64:118 65:7 66:49 67:57 68:18 69:41 70:8 71:17 72:17 74:39 75:128 76:166 77:6 78:3 79:10 80:14 81:32 82:4 83:8 84:9 85:37 86:9 87:1 88:2 89:11 91:54 92:1 93:12 94:4 95:4 96:6 97:1 98:8 99:178 101:6 102:9 103:308 104:42 106:1 107:8 108:19 109:8 110:3 111:21 112:4 114:23 115:1 116:5 117:63 118:35 119:18 121:29 122:11 123:8 124:40 125:13 128:79 129:225 130:111 131:113 132:60 133:137 134:91 135:1 136:203 137:160 138:14 139:16 140:50 141:3 142:61 143:38 144:81 146:126 147:68 148:167 149:16 150:44 151:6 152:77 153:11 154:25 155:58 156:64 157:30 158:48 159:117 160:33 161:19 162:46 163:69 164:48 165:20 166:1 167:17 168:159 169:9 170:93 171:1 172:8 173:19 174:1 175:32 176:11 177:7 178:2 179:13 180:21 181:11 182:6 184:8 185:51 186:3 187:18 188:14 189:6 190:44 191:36 192:1484 193:255 194:144 195:102 196:165 197:199 198:507 199:305 200:253 201:39 202:590 203:407 204:385 205:203 206:197 207:191 208:84 209:131 210:187 211:14 212:164 213:13 214:7 216:93 217:16 218:26 219:8 220:24 222:4 223:2 End of report