IPv4 R&E Routing Table Report 22:40 GMT Tue 30 Apr, 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: 28989 Prefixes after maximum aggregation (per Origin AS): 14709 Deaggregation factor: 1.97 Unique aggregates announced (without unneeded subnets): 17212 Total ASes present in the Internet Routing Table: 2847 Prefixes per ASN: 10.18 Origin-only ASes present in the Internet Routing Table: 2464 Origin ASes announcing only one prefix: 1093 Transit ASes present in the Internet Routing Table: 383 Transit-only ASes present in the Internet Routing Table: 66 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 3.5 Max AS path length visible: 14 Max AS path prepend of ASN ( 47805) 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: 44317 Number of 32-bit ASNs visible in the Routing Table: 682 Prefixes from 32-bit ASNs in the Routing Table: 4686 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: 10 Number of addresses announced to Internet: 313816064 Equivalent to 18 /8s, 180 /16s and 116 /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: 3790 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4710 Total APNIC prefixes after maximum aggregation: 2330 APNIC Deaggregation factor: 2.02 Prefixes being announced from the APNIC address blocks: 4879 Unique aggregates announced from the APNIC address blocks: 2807 APNIC Region origin ASes present in the Internet Routing Table: 589 APNIC Prefixes per ASN: 8.28 APNIC Region origin ASes announcing only one prefix: 252 APNIC Region transit ASes present in the Internet Routing Table: 60 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: 233 Number of APNIC addresses announced to Internet: 47203584 Equivalent to 2 /8s, 208 /16s and 69 /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: 18611 Total ARIN prefixes after maximum aggregation: 8816 ARIN Deaggregation factor: 2.11 Prefixes being announced from the ARIN address blocks: 18093 Unique aggregates announced from the ARIN address blocks: 10207 ARIN Region origin ASes present in the Internet Routing Table: 1319 ARIN Prefixes per ASN: 13.72 ARIN Region origin ASes announcing only one prefix: 464 ARIN Region transit ASes present in the Internet Routing Table: 168 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: 218 Number of ARIN addresses announced to Internet: 189934336 Equivalent to 11 /8s, 82 /16s and 43 /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: 3626 Total RIPE prefixes after maximum aggregation: 2913 RIPE Deaggregation factor: 1.24 Prefixes being announced from the RIPE address blocks: 3969 Unique aggregates announced from the RIPE address blocks: 3381 RIPE Region origin ASes present in the Internet Routing Table: 677 RIPE Prefixes per ASN: 5.86 RIPE Region origin ASes announcing only one prefix: 303 RIPE Region transit ASes present in the Internet Routing Table: 106 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: 152 Number of RIPE addresses announced to Internet: 69355520 Equivalent to 4 /8s, 34 /16s and 72 /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: 1220 Total LACNIC prefixes after maximum aggregation: 485 LACNIC Deaggregation factor: 2.52 Prefixes being announced from the LACNIC address blocks: 1225 Unique aggregates announced from the LACNIC address blocks: 602 LACNIC Region origin ASes present in the Internet Routing Table: 159 LACNIC Prefixes per ASN: 7.70 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: 4.9 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 66 Number of LACNIC addresses announced to Internet: 4751360 Equivalent to 0 /8s, 72 /16s and 128 /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: 807 Total AfriNIC prefixes after maximum aggregation: 152 AfriNIC Deaggregation factor: 5.31 Prefixes being announced from the AfriNIC address blocks: 813 Unique aggregates announced from the AfriNIC address blocks: 206 AfriNIC Region origin ASes present in the Internet Routing Table: 33 AfriNIC Prefixes per ASN: 24.64 AfriNIC Region origin ASes announcing only one prefix: 17 AfriNIC Region transit ASes present in the Internet Routing Table: 8 Average AfriNIC Region AS path length visible: 3.6 Max AfriNIC Region AS path length visible: 11 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 13 Number of AfriNIC addresses announced to Internet: 2559744 Equivalent to 0 /8s, 39 /16s and 15 /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 189 74 142 KREONET-AS-KR KISTI, KR 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 7575 169 329 113 AARNET-AS-AP Australian Academic and Re 55824 131 19 19 NKN-CORE-NW NKN Core Network, IN 4538 129 4192 72 ERX-CERNET-BKB China Education and Rese 4762 75 4 1 MAHIDOL-BORDER-AS Mahidol University, T 4621 70 37 10 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 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 4511 4683 2122 AMAZON-02, US 396982 2768 3639 416 GOOGLE-CLOUD-PLATFORM, US 14618 900 4165 681 AMAZON-AES, US 15169 840 2001 62 GOOGLE, US 2152 483 507 96 CSUNET-NW, US 8075 470 13278 394 MICROSOFT-CORP-MSN-AS-BLOCK, US 2920 224 44 46 LACOE, US 668 203 648 172 DNIC-AS-00668, US 376 201 162 151 RISQ-AS, CA 5786 198 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 680 284 1899 250 DFN Verein zur Foerderung eines Deutsch 786 186 1767 183 JANET Jisc Services Limited, GB 8895 134 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 77 27 65 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 1916 141 176 42 Rede Nacional de Ensino e Pesquisa, BR 11340 108 25 51 Red Universitaria Nacional, CL 271640 67 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 49 16 2 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 2715 45 99 34 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 3596 34 2 2 Universidad Autonoma Metropolitana, MX 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 204 82 3 KENET-AS, KE 8094 47 48 18 PUKNET, ZA 327700 44 16 1 MoRENet, MZ 37215 36 8 1 MAREN, MW 6879 24 2 9 ENSTINET-, EG 37654 13 1 7 RwEdNet-AS, RW 37501 11 49 6 UOFS, ZA 36982 8 33 8 UCT, 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 4511 4683 2122 AMAZON-02, US 396982 2768 3639 416 GOOGLE-CLOUD-PLATFORM, US 14618 900 4165 681 AMAZON-AES, US 15169 840 2001 62 GOOGLE, US 2907 591 2162 464 SINET-AS Research Organization of Infor 2152 483 507 96 CSUNET-NW, US 8075 470 13278 394 MICROSOFT-CORP-MSN-AS-BLOCK, US 7497 443 180 24 CSTNET-AS-AP Computer Network Informati 2018 380 319 71 TENET-1, ZA 680 284 1899 250 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 2768 2352 GOOGLE-CLOUD-PLATFORM, US 15169 840 778 GOOGLE, US 7497 443 419 CSTNET-AS-AP Computer Network Information Cente 2152 483 387 CSUNET-NW, US 2018 380 309 TENET-1, ZA 14618 900 219 AMAZON-AES, US 36914 204 201 KENET-AS, KE 5786 198 197 UPRENET, PR 58647 182 180 KAGAWAU-AS Kagawa University, JP 2920 224 178 LACOE, US 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 RESERVED, ZZ 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 18838 UNALLOCATED 168.8.240.0/20 3480 PEACHNET-AS3480, US 18838 UNALLOCATED 168.9.0.0/20 3480 PEACHNET-AS3480, US 11570 UNALLOCATED 192.94.216.0/24 40498 ABQG, US 11570 UNALLOCATED 192.207.226.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.106.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.107.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.108.0/24 40498 ABQG, US 11570 UNALLOCATED 198.59.188.0/24 40498 ABQG, 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 /12:34 /13:48 /14:113 /15:210 /16:2251 /17:576 /18:538 /19:762 /20:2877 /21:1327 /22:2071 /23:2176 /24:15991 /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 771 4511 AMAZON-02, US 14618 296 900 AMAZON-AES, US 15169 278 840 GOOGLE, US 396982 223 2768 GOOGLE-CLOUD-PLATFORM, US 36914 191 204 KENET-AS, KE 8895 129 134 ISU Internet Services Unit ISU, SA 8075 104 470 MICROSOFT-CORP-MSN-AS-BLOCK, US 2152 54 483 CSUNET-NW, US 23024 51 108 OCDE, US 32440 38 63 LONI, US Complete listing at https://bgp.nsrc.org/REN/PacWave/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:3 2:1 3:152 4:2 5:23 6:4 8:28 12:1 13:164 14:91 15:132 16:113 18:289 23:120 24:3 31:3 34:25 35:59 36:1 38:10 40:6 41:143 42:10 43:2 44:7 45:69 46:15 47:1 49:9 50:13 52:862 54:184 58:1 59:19 60:6 61:3 62:16 63:46 64:181 65:41 66:112 67:72 68:23 69:65 70:43 71:45 72:17 74:158 75:1 76:49 77:13 78:3 79:10 80:13 81:27 82:7 83:7 84:8 85:43 86:5 87:4 88:1 89:23 91:65 92:7 93:4 94:6 95:3 96:6 97:1 98:13 99:79 101:3 102:7 103:381 104:246 107:50 108:169 109:11 111:1 113:4 114:32 115:1 116:13 117:63 118:33 119:21 121:11 122:11 123:8 124:42 125:5 128:89 129:44 130:150 131:78 132:65 133:157 134:112 135:5 136:303 137:100 138:65 139:19 140:47 141:8 142:282 143:37 144:72 145:6 146:136 147:80 148:52 149:19 150:50 151:33 152:137 153:14 154:32 155:87 156:138 157:34 158:46 159:158 160:36 161:48 162:127 163:88 164:27 165:72 166:2 167:27 168:169 169:10 170:211 171:1 172:120 173:124 174:2 175:25 176:13 177:6 178:4 179:14 180:15 181:1 182:9 184:7 185:145 186:3 187:18 188:19 189:3 190:17 191:13 192:1615 193:289 194:141 195:77 196:154 197:117 198:611 199:383 200:261 201:36 202:647 203:448 204:437 205:202 206:220 207:283 208:167 209:240 210:206 211:14 212:170 213:21 214:8 216:237 217:13 218:22 219:5 220:17 222:2 223:14 End of report