Global R&E Routing Table Report 19:15 GMT Sun 06 Jun, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/SingAREN/ Analysis Summary ---------------- BGP routing table entries examined: 19237 Prefixes after maximum aggregation (per Origin AS): 10711 Deaggregation factor: 1.80 Unique aggregates announced (without unneeded subnets): 12052 Total ASes present in the Internet Routing Table: 2776 Prefixes per ASN: 6.93 Origin-only ASes present in the Internet Routing Table: 2368 Origin ASes announcing only one prefix: 1084 Transit ASes present in the Internet Routing Table: 408 Transit-only ASes present in the Internet Routing Table: 73 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 18 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 16 Number of instances of unregistered ASNs: 16 Number of 32-bit ASNs allocated by the RIRs: 36255 Number of 32-bit ASNs visible in the Routing Table: 589 Prefixes from 32-bit ASNs in the Routing Table: 1718 Number of bogon 32-bit ASNs visible in the Routing Table: 0 Special use prefixes present in the Routing Table: 4 Prefixes being announced from unallocated address space: 6 Number of addresses announced to Internet: 208978828 Equivalent to 12 /8s, 116 /16s and 195 /24s Percentage of available address space announced: 5.6 Percentage of allocated address space announced: 5.6 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: 2372 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4792 Total APNIC prefixes after maximum aggregation: 2386 APNIC Deaggregation factor: 2.01 Prefixes being announced from the APNIC address blocks: 4790 Unique aggregates announced from the APNIC address blocks: 2717 APNIC Region origin ASes present in the Internet Routing Table: 572 APNIC Prefixes per ASN: 8.37 APNIC Region origin ASes announcing only one prefix: 238 APNIC Region transit ASes present in the Internet Routing Table: 67 Average APNIC Region AS path length visible: 3.9 Max APNIC Region AS path length visible: 11 Number of APNIC region 32-bit ASNs visible in the Routing Table: 212 Number of APNIC addresses announced to Internet: 46418284 Equivalent to 2 /8s, 196 /16s and 73 /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: 8357 Total ARIN prefixes after maximum aggregation: 4782 ARIN Deaggregation factor: 1.75 Prefixes being announced from the ARIN address blocks: 8381 Unique aggregates announced from the ARIN address blocks: 5465 ARIN Region origin ASes present in the Internet Routing Table: 1229 ARIN Prefixes per ASN: 6.82 ARIN Region origin ASes announcing only one prefix: 434 ARIN Region transit ASes present in the Internet Routing Table: 166 Average ARIN Region AS path length visible: 5.5 Max ARIN Region AS path length visible: 18 Number of ARIN region 32-bit ASNs visible in the Routing Table: 151 Number of ARIN addresses announced to Internet: 97366912 Equivalent to 5 /8s, 205 /16s and 179 /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: 3405 Total RIPE prefixes after maximum aggregation: 2748 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3396 Unique aggregates announced from the RIPE address blocks: 2741 RIPE Region origin ASes present in the Internet Routing Table: 672 RIPE Prefixes per ASN: 5.05 RIPE Region origin ASes announcing only one prefix: 319 RIPE Region transit ASes present in the Internet Routing Table: 111 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 127 Number of RIPE addresses announced to Internet: 58208384 Equivalent to 3 /8s, 120 /16s and 48 /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: 1476 Total LACNIC prefixes after maximum aggregation: 591 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1473 Unique aggregates announced from the LACNIC address blocks: 822 LACNIC Region origin ASes present in the Internet Routing Table: 178 LACNIC Prefixes per ASN: 8.28 LACNIC Region origin ASes announcing only one prefix: 72 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 76 Number of LACNIC addresses announced to Internet: 4190752 Equivalent to 0 /8s, 63 /16s and 242 /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: 1191 Total AfriNIC prefixes after maximum aggregation: 189 AfriNIC Deaggregation factor: 6.30 Prefixes being announced from the AfriNIC address blocks: 1191 Unique aggregates announced from the AfriNIC address blocks: 301 AfriNIC Region origin ASes present in the Internet Routing Table: 48 AfriNIC Prefixes per ASN: 24.81 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 23 Number of AfriNIC addresses announced to Internet: 2723840 Equivalent to 0 /8s, 41 /16s and 144 /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 630 2155 456 SINET-AS Research Organization of Infor 7497 427 212 24 CSTNET-AS-AP Computer Network Informati 58647 198 18 2 KAGAWAU-AS Kagawa University, JP 1237 194 75 137 KREONET-AS-KR KISTI, KR 7575 180 331 127 AARNET-AS-AP Australian Academic and Re 55824 128 19 22 NKN-CORE-NW NKN Core Network, IN 4538 123 4192 72 ERX-CERNET-BKB China Education and Rese 4621 83 45 12 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/SingAREN/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 211 702 182 DNIC-AS-00668, US 5786 201 16 1 UPRENET, PR 2152 165 507 97 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 117 297 87 AS270, US 23024 114 7 17 OCDE, US 2920 112 34 6 LACOE, US 21976 88 51 18 NJEDGE-NET, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 171 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 66 647 61 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/SingAREN/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 204 207 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 66 37 20 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 2715 60 102 40 Fundacao Carlos Chagas Filho de Amparo 61468 45 3 15 CEDIA, EC 4270 44 16 1 Red de Interconexion Universitaria, AR 19611 44 17 2 Associacao Antonio Vieira - Unisinos, B 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/SingAREN/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 406 82 3 KENET-AS, KE 2018 323 319 74 TENET-1, ZA 327687 136 28 3 RENU, UG 2561 74 5 34 EUN, EG 8094 55 48 4 PUKNET, ZA 327700 39 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/SingAREN/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 2907 630 2155 456 SINET-AS Research Organization of Infor 7497 427 212 24 CSTNET-AS-AP Computer Network Informati 36914 406 82 3 KENET-AS, KE 2018 323 319 74 TENET-1, ZA 680 273 1996 235 DFN Verein zur Foerderung eines Deutsch 7896 245 51 7 NU-AS, US 376 235 180 158 RISQ-AS, CA 668 211 702 182 DNIC-AS-00668, US 1916 204 207 41 Associacao Rede Nacional de Ensino e Pe 5786 201 16 1 UPRENET, PR Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 7497 427 403 CSTNET-AS-AP Computer Network Information Cente 36914 406 403 KENET-AS, KE 2018 323 249 TENET-1, ZA 7896 245 238 NU-AS, US 5786 201 200 UPRENET, PR 58647 198 196 KAGAWAU-AS Kagawa University, JP 8895 171 167 ISU Internet Services Unit (ISU), SA 1916 204 163 Associacao Rede Nacional de Ensino e Pesquisa, 18558 137 133 NETBLK-RCOEK, US 327687 136 133 RENU, UG Complete listing at https://bgp.nsrc.org/REN/SingAREN/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/SingAREN/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 172.16.150.0/24 9489 KARINET-AS Korea Aerospace Research Institute, 172.16.160.0/24 9489 KARINET-AS Korea Aerospace Research Institute, 172.30.0.0/16 9489 KARINET-AS Korea Aerospace Research Institute, 192.88.99.0/24 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-dsua Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 164.160.240.0/20 Origin: 328439 UNASSIGNED Transit: 327992 GHANAIAN-ACADEMIC-AND-RESEARCH-NETWORK, 172.16.150.0/24 Origin: 9489 KARINET-AS Korea Aerospace Research Inst Transit: 1237 KREONET-AS-KR KISTI, KR 172.16.160.0/24 Origin: 9489 KARINET-AS Korea Aerospace Research Inst Transit: 1237 KREONET-AS-KR KISTI, KR 172.30.0.0/16 Origin: 9489 KARINET-AS Korea Aerospace Research Inst Transit: 1237 KREONET-AS-KR KISTI, KR 192.31.196.0/24 Origin: 112 UNASSIGNED Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/SingAREN/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 /10:2 /11:1 /12:10 /13:18 /14:37 /15:118 /16:2056 /17:387 /18:427 /19:590 /20:896 /21:923 /22:1444 /23:1538 /24:10502 /25:86 /26:66 /27:52 /28:33 /29:31 /30:15 /31:0 /32:4 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 380 406 KENET-AS, KE 8895 166 171 ISU Internet Services Unit (ISU), SA 23024 53 114 OCDE, US 58647 34 198 KAGAWAU-AS Kagawa University, JP 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 18632 29 55 VOLCANO-VISION, US 27609 29 45 USC-UNIVERSITY-HOSPITAL, US Complete listing at https://bgp.nsrc.org/REN/SingAREN/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:4 5:15 6:4 8:2 12:1 14:84 18:41 23:6 24:6 31:6 37:6 38:9 40:1 41:232 42:25 44:5 45:53 46:7 47:1 49:10 50:4 52:1 58:1 59:20 60:4 61:4 62:7 63:38 64:55 65:5 66:53 67:45 68:8 69:17 71:1 72:14 74:19 76:33 77:5 79:10 80:14 81:32 82:4 83:8 84:5 85:34 86:9 87:1 88:1 89:10 91:46 92:1 93:12 94:4 95:4 96:5 97:1 98:2 101:2 102:9 103:291 104:76 106:1 107:17 108:8 109:8 110:3 111:20 112:4 114:23 115:1 116:5 117:63 118:35 119:18 121:29 122:8 123:8 124:40 125:13 128:79 129:173 130:91 131:91 132:56 133:137 134:92 136:193 137:146 138:11 139:5 140:48 141:2 142:43 143:35 144:53 146:125 147:66 148:160 149:13 150:37 151:5 152:77 153:11 154:24 155:47 156:64 157:25 158:45 159:115 160:26 161:17 162:25 163:66 164:40 165:14 166:1 167:15 168:124 169:9 170:67 171:1 172:3 173:7 175:32 176:8 177:7 178:1 179:12 180:21 181:11 182:6 184:9 185:41 186:3 187:18 188:13 189:6 190:44 191:36 192:1439 193:246 194:144 195:102 196:168 197:199 198:512 199:274 200:261 201:39 202:589 203:427 204:359 205:175 206:195 207:178 208:62 209:121 210:187 211:14 212:165 213:4 214:7 216:66 217:16 218:26 219:8 220:24 222:4 223:2 End of report