Global R&E Routing Table Report 22:05 GMT Fri 05 Nov, 2021 Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CENIC/ Analysis Summary ---------------- BGP routing table entries examined: 21645 Prefixes after maximum aggregation (per Origin AS): 11959 Deaggregation factor: 1.81 Unique aggregates announced (without unneeded subnets): 14252 Total ASes present in the Internet Routing Table: 2696 Prefixes per ASN: 8.03 Origin-only ASes present in the Internet Routing Table: 2325 Origin ASes announcing only one prefix: 1070 Transit ASes present in the Internet Routing Table: 371 Transit-only ASes present in the Internet Routing Table: 51 Average AS path length visible in the Internet Routing Table: 4.1 Max AS path length visible: 15 Max AS path prepend of ASN ( 10497) 11 Prefixes from unregistered ASNs in the Routing Table: 19 Number of instances of unregistered ASNs: 19 Number of 32-bit ASNs allocated by the RIRs: 37759 Number of 32-bit ASNs visible in the Routing Table: 599 Prefixes from 32-bit ASNs in the Routing Table: 1770 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: 288315136 Equivalent to 17 /8s, 47 /16s and 87 /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: 2752 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4670 Total APNIC prefixes after maximum aggregation: 2313 APNIC Deaggregation factor: 2.02 Prefixes being announced from the APNIC address blocks: 4734 Unique aggregates announced from the APNIC address blocks: 2698 APNIC Region origin ASes present in the Internet Routing Table: 583 APNIC Prefixes per ASN: 8.12 APNIC Region origin ASes announcing only one prefix: 251 APNIC Region transit ASes present in the Internet Routing Table: 64 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 13 Number of APNIC region 32-bit ASNs visible in the Routing Table: 225 Number of APNIC addresses announced to Internet: 46776320 Equivalent to 2 /8s, 201 /16s and 192 /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: 11489 Total ARIN prefixes after maximum aggregation: 6313 ARIN Deaggregation factor: 1.82 Prefixes being announced from the ARIN address blocks: 11350 Unique aggregates announced from the ARIN address blocks: 7731 ARIN Region origin ASes present in the Internet Routing Table: 1242 ARIN Prefixes per ASN: 9.14 ARIN Region origin ASes announcing only one prefix: 440 ARIN Region transit ASes present in the Internet Routing Table: 161 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: 158 Number of ARIN addresses announced to Internet: 174944768 Equivalent to 10 /8s, 109 /16s and 114 /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: 3123 Total RIPE prefixes after maximum aggregation: 2554 RIPE Deaggregation factor: 1.22 Prefixes being announced from the RIPE address blocks: 3206 Unique aggregates announced from the RIPE address blocks: 2729 RIPE Region origin ASes present in the Internet Routing Table: 584 RIPE Prefixes per ASN: 5.49 RIPE Region origin ASes announcing only one prefix: 285 RIPE Region transit ASes present in the Internet Routing Table: 94 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 113 Number of RIPE addresses announced to Internet: 59158528 Equivalent to 3 /8s, 134 /16s and 176 /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: 1501 Total LACNIC prefixes after maximum aggregation: 614 LACNIC Deaggregation factor: 2.44 Prefixes being announced from the LACNIC address blocks: 1503 Unique aggregates announced from the LACNIC address blocks: 859 LACNIC Region origin ASes present in the Internet Routing Table: 181 LACNIC Prefixes per ASN: 8.30 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: 78 Number of LACNIC addresses announced to Internet: 4568064 Equivalent to 0 /8s, 69 /16s and 180 /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: 843 Total AfriNIC prefixes after maximum aggregation: 159 AfriNIC Deaggregation factor: 5.30 Prefixes being announced from the AfriNIC address blocks: 845 Unique aggregates announced from the AfriNIC address blocks: 228 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 16.90 AfriNIC Region origin ASes announcing only one prefix: 22 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 11 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 25 Number of AfriNIC addresses announced to Internet: 2865664 Equivalent to 0 /8s, 43 /16s and 186 /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 609 2157 456 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 175 329 121 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 113 18 10 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 2518 4280 867 AMAZON-02, US 14618 539 3985 410 AMAZON-AES, US 668 207 700 178 DNIC-AS-00668, US 8075 206 11189 185 MICROSOFT-CORP-MSN-AS-BLOCK, US 376 205 179 154 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 2152 159 507 88 CSUNET-NW, US 18558 137 18 4 NETBLK-RCOEK, US 270 119 329 88 AS270, US 23024 114 7 17 OCDE, 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 680 276 1998 238 DFN Verein zur Foerderung eines Deutsch 786 186 1774 183 JANET Jisc Services Limited, GB 8895 142 24 3 ISU Internet Services Unit ISU, SA 559 115 550 106 SWITCH Peering requests: peering@switch 1103 96 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 171 207 40 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 339 319 73 TENET-1, ZA 327687 138 28 3 RENU, UG 36914 100 82 3 KENET-AS, KE 8094 50 48 4 PUKNET, ZA 327700 34 16 1 MoRENet, MZ 37215 33 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37182 14 8 1 TERNET, TZ 37074 11 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 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 2518 4280 867 AMAZON-02, US 2907 609 2157 456 SINET-AS Research Organization of Infor 14618 539 3985 410 AMAZON-AES, US 7497 430 182 24 CSTNET-AS-AP Computer Network Informati 2018 339 319 73 TENET-1, ZA 680 276 1998 238 DFN Verein zur Foerderung eines Deutsch 668 207 700 178 DNIC-AS-00668, US 8075 206 11189 185 MICROSOFT-CORP-MSN-AS-BLOCK, US 376 205 179 154 RISQ-AS, CA 5786 201 16 1 UPRENET, PR 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 339 266 TENET-1, ZA 5786 201 200 UPRENET, PR 58647 164 162 KAGAWAU-AS Kagawa University, JP 2907 609 153 SINET-AS Research Organization of Information a 8895 142 139 ISU Internet Services Unit ISU, SA 327687 138 135 RENU, UG 18558 137 133 NETBLK-RCOEK, US 1916 171 131 Associacao Rede Nacional de Ensino e Pesquisa, 14618 539 129 AMAZON-AES, 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 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 14822 UNALLOCATED 140.163.70.0/24 10466 MAGPI, US 14822 UNALLOCATED 140.163.128.0/17 10466 MAGPI, US 22063 UNALLOCATED 153.10.0.0/16 2152 CSUNET-NW, US 394784 UNALLOCATED 192.107.242.0/24 40831 PHS, US 19658 UNALLOCATED 199.27.241.0/24 11096 FLORIDANET, US 396334 UNALLOCATED 205.143.136.0/21 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: 20965 GEANT The GEANT IP Service, NL 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 /15:198 /16:2141 /17:447 /18:460 /19:595 /20:964 /21:959 /22:1528 /23:1627 /24:12570 /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 661 2518 AMAZON-02, US 14618 178 539 AMAZON-AES, US 8895 137 142 ISU Internet Services Unit ISU, SA 36914 86 100 KENET-AS, KE 23024 53 114 OCDE, 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 34 MoRENet, MZ 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 14:84 15:31 18:42 23:33 24:6 31:6 35:1 37:6 38:9 40:2 41:145 42:8 44:5 45:72 46:8 47:1 49:10 50:8 52:661 54:170 58:1 59:20 60:4 61:3 62:5 63:42 64:123 65:9 66:69 67:61 68:18 69:47 70:7 71:9 72:19 74:40 75:128 76:164 77:8 78:3 79:10 80:10 81:26 82:3 83:7 84:4 85:23 87:1 88:1 89:12 91:52 93:19 94:4 95:4 96:6 97:1 98:11 99:176 101:6 102:15 103:335 104:109 106:1 107:24 108:21 109:8 110:3 111:21 112:4 113:1 114:23 116:5 117:61 118:32 119:20 121:26 122:11 123:8 124:39 125:5 128:83 129:43 130:110 131:101 132:61 133:138 134:99 135:1 136:205 137:140 138:9 139:16 140:50 141:3 142:61 143:37 144:38 146:126 147:53 148:166 149:20 150:48 151:8 152:79 153:10 154:23 155:59 156:70 157:29 158:45 159:120 160:32 161:21 162:54 163:72 164:35 165:60 166:1 167:23 168:201 169:9 170:114 172:10 173:20 174:1 175:31 176:12 177:10 178:3 179:13 180:21 181:12 182:6 184:3 185:52 186:3 187:18 188:13 189:3 190:54 191:37 192:1481 193:206 194:103 195:61 196:178 197:5 198:532 199:311 200:250 201:39 202:644 203:426 204:360 205:199 206:213 207:192 208:94 209:140 210:184 211:14 212:171 213:11 214:7 216:133 217:13 218:25 219:8 220:17 222:5 223:2 End of report