IPv4 R&E Routing Table Report 22:10 GMT Sun 18 Feb, 2024 IPv4 BGP Table (R&E) as seen at CEDIA. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/CEDIA/ Analysis Summary ---------------- BGP routing table entries examined: 25648 Prefixes after maximum aggregation (per Origin AS): 12581 Deaggregation factor: 2.04 Unique aggregates announced (without unneeded subnets): 14256 Number of IPv4 prefixes with a valid ROA: 12823 Number of IPv4 prefixes with an invalid ROA: 176 Number of IPv4 prefixes with no ROA: 12649 Total ASes present in the Internet Routing Table: 2742 Prefixes per ASN: 9.35 Origin-only ASes present in the Internet Routing Table: 2360 Origin ASes announcing only one prefix: 1052 Transit ASes present in the Internet Routing Table: 382 Transit-only ASes present in the Internet Routing Table: 70 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 16 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: 43680 Number of 32-bit ASNs visible in the Routing Table: 653 Prefixes from 32-bit ASNs in the Routing Table: 4803 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: 3 Number of addresses announced to Internet: 239315151 Equivalent to 14 /8s, 67 /16s and 168 /24s Percentage of available address space announced: 6.5 Percentage of allocated address space announced: 6.5 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: 3562 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4647 Total APNIC prefixes after maximum aggregation: 2269 APNIC Deaggregation factor: 2.05 Prefixes being announced from the APNIC address blocks: 4699 Unique aggregates announced from the APNIC address blocks: 2636 APNIC Region origin ASes present in the Internet Routing Table: 541 APNIC Prefixes per ASN: 8.69 APNIC Region origin ASes announcing only one prefix: 233 APNIC Region transit ASes present in the Internet Routing Table: 57 Average APNIC Region AS path length visible: 5.9 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 207 Number of APNIC addresses announced to Internet: 45499712 Equivalent to 2 /8s, 182 /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: 14605 Total ARIN prefixes after maximum aggregation: 6574 ARIN Deaggregation factor: 2.22 Prefixes being announced from the ARIN address blocks: 14400 Unique aggregates announced from the ARIN address blocks: 7419 ARIN Region origin ASes present in the Internet Routing Table: 1238 ARIN Prefixes per ASN: 11.63 ARIN Region origin ASes announcing only one prefix: 431 ARIN Region transit ASes present in the Internet Routing Table: 165 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 15 Number of ARIN region 32-bit ASNs visible in the Routing Table: 203 Number of ARIN addresses announced to Internet: 129282689 Equivalent to 7 /8s, 180 /16s and 178 /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: 3616 Total RIPE prefixes after maximum aggregation: 2874 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3775 Unique aggregates announced from the RIPE address blocks: 3117 RIPE Region origin ASes present in the Internet Routing Table: 678 RIPE Prefixes per ASN: 5.57 RIPE Region origin ASes announcing only one prefix: 307 RIPE Region transit ASes present in the Internet Routing Table: 102 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 15 Number of RIPE region 32-bit ASNs visible in the Routing Table: 147 Number of RIPE addresses announced to Internet: 57659024 Equivalent to 3 /8s, 111 /16s and 206 /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: 1515 Total LACNIC prefixes after maximum aggregation: 677 LACNIC Deaggregation factor: 2.24 Prefixes being announced from the LACNIC address blocks: 1520 Unique aggregates announced from the LACNIC address blocks: 854 LACNIC Region origin ASes present in the Internet Routing Table: 162 LACNIC Prefixes per ASN: 9.38 LACNIC Region origin ASes announcing only one prefix: 54 LACNIC Region transit ASes present in the Internet Routing Table: 29 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 68 Number of LACNIC addresses announced to Internet: 4231294 Equivalent to 0 /8s, 64 /16s and 144 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 1250 Total AfriNIC prefixes after maximum aggregation: 175 AfriNIC Deaggregation factor: 7.14 Prefixes being announced from the AfriNIC address blocks: 1251 Unique aggregates announced from the AfriNIC address blocks: 227 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 25.02 AfriNIC Region origin ASes announcing only one prefix: 27 AfriNIC Region transit ASes present in the Internet Routing Table: 8 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 9 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 28 Number of AfriNIC addresses announced to Internet: 2641664 Equivalent to 0 /8s, 40 /16s and 79 /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 601 2162 465 SINET-AS Research Organization of Infor 7497 440 180 23 CSTNET-AS-AP Computer Network Informati 1237 197 74 142 KREONET-AS-KR KISTI, KR 58647 182 18 2 KAGAWAU-AS Kagawa University, JP 7575 174 329 117 AARNET-AS-AP Australian Academic and Re 4538 129 4192 73 ERX-CERNET-BKB China Education and Rese 55824 128 19 18 NKN-CORE-NW NKN Core Network, IN 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/CEDIA/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2755 3639 396 GOOGLE-CLOUD-PLATFORM, US 16509 2157 1654 910 AMAZON-02, US 14618 856 4033 645 AMAZON-AES, US 15169 831 1997 60 GOOGLE, US 376 201 162 151 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 36492 165 12 38 GOOGLEWIFI, US 2152 144 507 93 CSUNET-NW, US 18558 141 18 4 NETBLK-RCOEK, US 81 126 521 30 NCREN, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 680 283 1899 249 DFN Verein zur Foerderung eines Deutsch 786 184 1767 181 JANET Jisc Services Limited, GB 8895 160 24 5 ISU Internet Services Unit ISU, SA 559 114 533 104 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 44 68 RUNNET, RU Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1916 174 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 154 10 67 Universidad Juarez Autonoma de Tabasco, 11340 117 25 54 Red Universitaria Nacional, CL 27947 115 0 88 Telconet S.A, EC 271640 68 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 44 99 34 Fundacao Carlos Chagas Filho de Amparo 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 36 4 3 Universidad Autonoma Metropolitana, MX Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 482 82 3 KENET-AS, KE 2018 381 319 71 TENET-1, ZA 327687 161 28 3 RENU, UG 8094 47 48 18 PUKNET, ZA 327700 32 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37074 13 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 11 1 6 RwEdNet-AS, RW 37215 9 8 1 MAREN, MW Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 396982 2755 3639 396 GOOGLE-CLOUD-PLATFORM, US 16509 2157 1654 910 AMAZON-02, US 14618 856 4033 645 AMAZON-AES, US 15169 831 1997 60 GOOGLE, US 2907 601 2162 465 SINET-AS Research Organization of Infor 36914 482 82 3 KENET-AS, KE 7497 440 180 23 CSTNET-AS-AP Computer Network Informati 2018 381 319 71 TENET-1, ZA 680 283 1899 249 DFN Verein zur Foerderung eines Deutsch 376 201 162 151 RISQ-AS, CA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 16509 2157 1247 AMAZON-02, US 15169 831 771 GOOGLE, US 36914 482 479 KENET-AS, KE 7497 440 417 CSTNET-AS-AP Computer Network Information Cente 2018 381 310 TENET-1, ZA 14618 856 211 AMAZON-AES, US 5786 197 196 UPRENET, PR 58647 182 180 KAGAWAU-AS Kagawa University, JP 327687 161 158 RENU, UG 8895 160 155 ISU Internet Services Unit ISU, SA Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 26303 UNALLOCATED 76.165.220.0/24 32440 LONI, US 26303 UNALLOCATED 76.165.221.0/24 32440 LONI, US 26303 UNALLOCATED 76.165.222.0/24 32440 LONI, US 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, 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/CEDIA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 170.39.88.0/24 Origin: 14618 AMAZON-AES, US 170.39.88.0/24 Transit: 16509 AMAZON-02, US 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 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/CEDIA/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 /10:1 /11:4 /12:19 /13:34 /14:81 /15:160 /16:2100 /17:510 /18:495 /19:729 /20:2789 /21:1043 /22:1678 /23:1740 /24:13870 /25:84 /26:56 /27:75 /28:22 /29:77 /30:37 /31:35 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 467 482 KENET-AS, KE 16509 313 2157 AMAZON-02, US 14618 283 856 AMAZON-AES, US 15169 274 831 GOOGLE, US 396982 206 2755 GOOGLE-CLOUD-PLATFORM, US 8895 155 160 ISU Internet Services Unit ISU, SA 27947 93 115 Telconet S.A, EC 32440 80 112 LONI, US 23024 52 109 OCDE, US 3267 35 77 RUNNET, RU Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:84 5:20 8:28 12:1 13:45 14:89 15:70 16:112 18:65 23:108 24:3 31:3 34:23 35:51 38:9 40:5 41:168 42:10 43:2 44:9 45:61 46:11 47:1 49:9 50:3 52:552 54:184 58:1 59:19 60:6 61:3 62:9 63:36 64:160 65:13 66:81 67:61 68:14 69:40 70:44 71:3 72:11 74:145 76:47 77:13 78:3 79:10 80:13 81:25 82:6 83:7 84:10 85:35 86:4 87:4 88:1 89:19 91:58 92:5 93:17 94:2 95:2 96:7 97:1 98:11 99:47 101:3 102:40 103:295 104:227 107:33 108:103 109:10 111:16 114:32 115:1 116:10 117:61 118:32 119:19 121:27 122:8 123:8 124:42 125:5 128:82 129:45 130:139 131:68 132:59 133:157 134:110 135:3 136:297 137:152 138:58 139:17 140:41 141:6 142:284 143:23 144:39 145:3 146:145 147:68 148:203 149:17 150:43 151:18 152:135 153:14 154:30 155:73 156:69 157:25 158:39 159:148 160:30 161:28 162:92 163:87 164:24 165:54 166:1 167:24 168:141 169:11 170:147 171:1 172:114 173:116 174:2 175:18 176:10 177:6 178:1 179:9 180:15 182:1 184:4 185:101 186:3 187:17 188:20 189:3 190:2 191:13 192:1501 193:281 194:126 195:72 196:198 197:330 198:480 199:308 200:266 201:34 202:624 203:425 204:371 205:149 206:196 207:171 208:138 209:166 210:196 211:14 212:162 213:16 216:175 217:13 218:22 219:5 220:17 222:2 223:14 End of report