IPv4 R&E Routing Table Report 22:40 GMT Wed 22 May, 2024 IPv4 BGP Table (R&E) as seen at RouteViews PacWave. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/PacWave/ Analysis Summary ---------------- BGP routing table entries examined: 29177 Prefixes after maximum aggregation (per Origin AS): 14776 Deaggregation factor: 1.97 Unique aggregates announced (without unneeded subnets): 17342 Total ASes present in the Internet Routing Table: 2795 Prefixes per ASN: 10.44 Origin-only ASes present in the Internet Routing Table: 2428 Origin ASes announcing only one prefix: 1071 Transit ASes present in the Internet Routing Table: 367 Transit-only ASes present in the Internet Routing Table: 58 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 14 Max AS path prepend of ASN ( 47805) 11 Prefixes from unregistered ASNs in the Routing Table: 4 Number of instances of unregistered ASNs: 4 Number of 32-bit ASNs allocated by the RIRs: 44505 Number of 32-bit ASNs visible in the Routing Table: 655 Prefixes from 32-bit ASNs in the Routing Table: 4623 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: 8 Number of addresses announced to Internet: 315406592 Equivalent to 18 /8s, 204 /16s and 185 /24s Percentage of available address space announced: 8.5 Percentage of allocated address space announced: 8.5 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.6 Total number of prefixes smaller than registry allocations: 3864 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4585 Total APNIC prefixes after maximum aggregation: 2267 APNIC Deaggregation factor: 2.02 Prefixes being announced from the APNIC address blocks: 4764 Unique aggregates announced from the APNIC address blocks: 2740 APNIC Region origin ASes present in the Internet Routing Table: 546 APNIC Prefixes per ASN: 8.73 APNIC Region origin ASes announcing only one prefix: 235 APNIC Region transit ASes present in the Internet Routing Table: 54 Average APNIC Region AS path length visible: 4.2 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: 47161344 Equivalent to 2 /8s, 207 /16s and 160 /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, 131072-153913 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: 18764 Total ARIN prefixes after maximum aggregation: 8913 ARIN Deaggregation factor: 2.11 Prefixes being announced from the ARIN address blocks: 18219 Unique aggregates announced from the ARIN address blocks: 10284 ARIN Region origin ASes present in the Internet Routing Table: 1324 ARIN Prefixes per ASN: 13.76 ARIN Region origin ASes announcing only one prefix: 465 ARIN Region transit ASes present in the Internet Routing Table: 167 Average ARIN Region AS path length visible: 3.1 Max ARIN Region AS path length visible: 14 Number of ARIN region 32-bit ASNs visible in the Routing Table: 220 Number of ARIN addresses announced to Internet: 189886720 Equivalent to 11 /8s, 81 /16s and 113 /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, 393216-402332 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: 3625 Total RIPE prefixes after maximum aggregation: 2913 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3975 Unique aggregates announced from the RIPE address blocks: 3383 RIPE Region origin ASes present in the Internet Routing Table: 674 RIPE Prefixes per ASN: 5.90 RIPE Region origin ASes announcing only one prefix: 298 RIPE Region transit ASes present in the Internet Routing Table: 100 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 14 Number of RIPE region 32-bit ASNs visible in the Routing Table: 151 Number of RIPE addresses announced to Internet: 71055104 Equivalent to 4 /8s, 60 /16s and 55 /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 196608-216475 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: 1345 Total LACNIC prefixes after maximum aggregation: 537 LACNIC Deaggregation factor: 2.50 Prefixes being announced from the LACNIC address blocks: 1350 Unique aggregates announced from the LACNIC address blocks: 722 LACNIC Region origin ASes present in the Internet Routing Table: 160 LACNIC Prefixes per ASN: 8.44 LACNIC Region origin ASes announcing only one prefix: 57 LACNIC Region transit ASes present in the Internet Routing Table: 24 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 14 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 63 Number of LACNIC addresses announced to Internet: 4759808 Equivalent to 0 /8s, 72 /16s and 161 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-274844 + 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: 854 Total AfriNIC prefixes after maximum aggregation: 142 AfriNIC Deaggregation factor: 6.01 Prefixes being announced from the AfriNIC address blocks: 861 Unique aggregates announced from the AfriNIC address blocks: 205 AfriNIC Region origin ASes present in the Internet Routing Table: 31 AfriNIC Prefixes per ASN: 27.77 AfriNIC Region origin ASes announcing only one prefix: 16 AfriNIC Region transit ASes present in the Internet Routing Table: 7 Average AfriNIC Region AS path length visible: 3.6 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 11 Number of AfriNIC addresses announced to Internet: 2540032 Equivalent to 0 /8s, 38 /16s and 194 /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 591 2162 464 SINET-AS Research Organization of Infor 7497 443 180 24 CSTNET-AS-AP Computer Network Informati 1237 190 74 142 KREONET-AS-KR KISTI, KR 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 7575 172 329 115 AARNET-AS-AP Australian Academic and Re 55824 130 19 18 NKN-CORE-NW NKN Core Network, IN 4538 129 4192 72 ERX-CERNET-BKB China Education and Rese 9411 82 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T 4621 70 37 10 UNINET-AS-AP UNINET-, TH Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 4551 4717 2162 AMAZON-02, US 396982 2762 3638 408 GOOGLE-CLOUD-PLATFORM, US 14618 918 4166 698 AMAZON-AES, US 15169 821 2001 62 GOOGLE, US 2152 492 507 96 CSUNET-NW, US 8075 484 13695 407 MICROSOFT-CORP-MSN-AS-BLOCK, US 2920 227 44 46 LACOE, US 376 203 162 152 RISQ-AS, CA 668 200 644 170 DNIC-AS-00668, US 5786 199 16 1 UPRENET, PR Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 282 1899 249 DFN Verein zur Foerderung eines Deutsch 786 187 1767 184 JANET Jisc Services Limited, GB 8895 132 24 5 ISU Internet Services Unit ISU, SA 559 113 533 103 SWITCH Peering requests: peering@switch 1103 95 1503 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 93 27 73 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol 553 78 462 78 BELWUE BelWue-Koordination, DE 3267 74 26 64 RUNNET, RU Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 1916 139 176 42 Rede Nacional de Ensino e Pesquisa, BR 11340 108 25 52 Red Universitaria Nacional, CL 271640 65 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 48 16 2 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 46 99 35 Fundacao Carlos Chagas Filho de Amparo 61468 43 3 14 CEDIA, EC 28614 38 2 2 Fundacao Universidade Regional de Blume 1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 2018 380 319 71 TENET-1, ZA 36914 253 82 3 KENET-AS, KE 8094 47 48 18 PUKNET, ZA 327700 46 16 1 MoRENet, MZ 37215 36 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37654 14 1 8 RwEdNet-AS, RW 37182 12 8 1 TERNET, TZ 37501 6 48 3 UOFS, ZA 31960 5 1 1 EMUNET, MZ Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 4551 4717 2162 AMAZON-02, US 396982 2762 3638 408 GOOGLE-CLOUD-PLATFORM, US 14618 918 4166 698 AMAZON-AES, US 15169 821 2001 62 GOOGLE, US 2907 591 2162 464 SINET-AS Research Organization of Infor 2152 492 507 96 CSUNET-NW, US 8075 484 13695 407 MICROSOFT-CORP-MSN-AS-BLOCK, US 7497 443 180 24 CSTNET-AS-AP Computer Network Informati 2018 380 319 71 TENET-1, ZA 680 282 1899 249 DFN Verein zur Foerderung eines Deutsch Complete listing at https://bgp.nsrc.org/REN/PacWave/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 396982 2762 2354 GOOGLE-CLOUD-PLATFORM, US 15169 821 759 GOOGLE, US 7497 443 419 CSTNET-AS-AP Computer Network Information Cente 2152 492 396 CSUNET-NW, US 2018 380 309 TENET-1, ZA 36914 253 250 KENET-AS, KE 14618 918 220 AMAZON-AES, US 5786 199 198 UPRENET, PR 2920 227 181 LACOE, US 58647 182 180 KAGAWAU-AS Kagawa University, JP Complete listing at https://bgp.nsrc.org/REN/PacWave/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 65208 PRIVATE 63.225.1.0/24 11570 AS11570, US 18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US 18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, US 65208 PRIVATE 216.161.32.0/23 11570 AS11570, US Complete listing at https://bgp.nsrc.org/REN/PacWave/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 45.42.252.0/22 Origin: 16509 AMAZON-02, US 45.42.252.0/22 Transit: 101 WASH-NSF-AS, US 64.186.3.0/24 Origin: 16509 AMAZON-02, US 64.186.3.0/24 Transit: 101 WASH-NSF-AS, US 170.39.88.0/24 Origin: 14618 AMAZON-AES, US 170.39.88.0/24 Transit: 16509 AMAZON-02, US 173.249.168.0/22 Origin: 16509 AMAZON-02, US 173.249.168.0/22 Transit: 101 WASH-NSF-AS, US 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL Complete listing at https://bgp.nsrc.org/REN/PacWave/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 /10:3 /11:11 /12:35 /13:48 /14:114 /15:213 /16:2251 /17:572 /18:533 /19:772 /20:2888 /21:1324 /22:2057 /23:2173 /24:16182 /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 781 4551 AMAZON-02, US 14618 301 918 AMAZON-AES, US 15169 275 821 GOOGLE, US 36914 240 253 KENET-AS, KE 396982 222 2762 GOOGLE-CLOUD-PLATFORM, US 8895 127 132 ISU Internet Services Unit ISU, SA 8075 105 484 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 58 492 CSUNET-NW, US 23024 51 108 OCDE, US 327700 40 46 MoRENet, MZ Complete listing at https://bgp.nsrc.org/REN/PacWave/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 2:1 3:151 4:2 5:23 6:4 8:28 12:1 13:165 14:90 15:132 16:113 18:287 23:119 24:3 31:3 34:23 35:60 36:1 38:10 40:6 41:200 42:10 43:2 44:7 45:73 46:15 47:1 49:9 50:13 52:866 54:189 58:1 59:19 60:6 61:3 62:16 63:46 64:181 65:44 66:112 67:73 68:25 69:65 70:44 71:46 72:17 74:158 75:1 76:49 77:13 78:3 79:10 80:13 81:27 82:7 83:7 84:8 85:45 86:5 87:3 88:1 89:23 91:65 92:7 93:5 94:6 95:3 96:6 97:1 98:13 99:79 101:3 102:8 103:329 104:247 107:50 108:167 109:12 111:1 113:4 114:32 115:1 116:13 117:65 118:34 119:21 121:11 122:11 123:8 124:41 125:5 128:88 129:40 130:154 131:78 132:66 133:157 134:111 135:6 136:304 137:101 138:65 139:19 140:44 141:9 142:267 143:38 144:72 145:6 146:136 147:78 148:206 149:19 150:49 151:34 152:140 153:14 154:31 155:90 156:139 157:35 158:43 159:162 160:32 161:48 162:129 163:74 164:26 165:78 166:2 167:24 168:169 169:10 170:212 171:1 172:119 173:124 174:2 175:18 176:13 177:6 178:3 179:10 180:15 181:1 182:1 184:7 185:145 186:3 187:17 188:19 189:3 190:17 191:13 192:1619 193:290 194:138 195:78 196:149 197:118 198:616 199:388 200:256 201:37 202:629 203:445 204:439 205:206 206:236 207:334 208:166 209:246 210:190 211:14 212:174 213:21 214:8 216:240 217:15 218:22 219:5 220:17 222:2 223:14 End of report