IPv4 R&E Routing Table Report 22:10 GMT Tue 23 Jan, 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: 25703 Prefixes after maximum aggregation (per Origin AS): 12604 Deaggregation factor: 2.04 Unique aggregates announced (without unneeded subnets): 14271 Number of IPv4 prefixes with a valid ROA: 12731 Number of IPv4 prefixes with an invalid ROA: 187 Number of IPv4 prefixes with no ROA: 12785 Total ASes present in the Internet Routing Table: 2750 Prefixes per ASN: 9.35 Origin-only ASes present in the Internet Routing Table: 2366 Origin ASes announcing only one prefix: 1052 Transit ASes present in the Internet Routing Table: 384 Transit-only ASes present in the Internet Routing Table: 73 Paths with bogon ASNs present in the IPv4 Routing Table: 0 Average AS path length visible in the Internet Routing Table: 4.7 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: 43432 Number of 32-bit ASNs visible in the Routing Table: 650 Prefixes from 32-bit ASNs in the Routing Table: 4797 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: 239424624 Equivalent to 14 /8s, 69 /16s and 84 /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: 3595 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4643 Total APNIC prefixes after maximum aggregation: 2274 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4694 Unique aggregates announced from the APNIC address blocks: 2630 APNIC Region origin ASes present in the Internet Routing Table: 543 APNIC Prefixes per ASN: 8.64 APNIC Region origin ASes announcing only one prefix: 234 APNIC Region transit ASes present in the Internet Routing Table: 58 Average APNIC Region AS path length visible: 5.8 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 208 Number of APNIC addresses announced to Internet: 45501248 Equivalent to 2 /8s, 182 /16s and 75 /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: 14618 Total ARIN prefixes after maximum aggregation: 6540 ARIN Deaggregation factor: 2.24 Prefixes being announced from the ARIN address blocks: 14419 Unique aggregates announced from the ARIN address blocks: 7381 ARIN Region origin ASes present in the Internet Routing Table: 1237 ARIN Prefixes per ASN: 11.66 ARIN Region origin ASes announcing only one prefix: 432 ARIN Region transit ASes present in the Internet Routing Table: 163 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: 199 Number of ARIN addresses announced to Internet: 129315457 Equivalent to 7 /8s, 181 /16s and 50 /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: 3648 Total RIPE prefixes after maximum aggregation: 2921 RIPE Deaggregation factor: 1.25 Prefixes being announced from the RIPE address blocks: 3803 Unique aggregates announced from the RIPE address blocks: 3166 RIPE Region origin ASes present in the Internet Routing Table: 685 RIPE Prefixes per ASN: 5.55 RIPE Region origin ASes announcing only one prefix: 309 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: 149 Number of RIPE addresses announced to Internet: 57780224 Equivalent to 3 /8s, 113 /16s and 168 /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: 678 LACNIC Deaggregation factor: 2.23 Prefixes being announced from the LACNIC address blocks: 1519 Unique aggregates announced from the LACNIC address blocks: 863 LACNIC Region origin ASes present in the Internet Routing Table: 159 LACNIC Prefixes per ASN: 9.55 LACNIC Region origin ASes announcing only one prefix: 50 LACNIC Region transit ASes present in the Internet Routing Table: 28 Average LACNIC Region AS path length visible: 4.6 Max LACNIC Region AS path length visible: 13 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 67 Number of LACNIC addresses announced to Internet: 4157615 Equivalent to 0 /8s, 63 /16s and 112 /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: 1264 Total AfriNIC prefixes after maximum aggregation: 179 AfriNIC Deaggregation factor: 7.06 Prefixes being announced from the AfriNIC address blocks: 1265 Unique aggregates announced from the AfriNIC address blocks: 228 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 25.30 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: 13 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 27 Number of AfriNIC addresses announced to Internet: 2669312 Equivalent to 0 /8s, 40 /16s and 187 /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 600 2162 465 SINET-AS Research Organization of Infor 7497 439 180 23 CSTNET-AS-AP Computer Network Informati 1237 197 74 142 KREONET-AS-KR KISTI, KR 58647 180 18 2 KAGAWAU-AS Kagawa University, JP 7575 176 329 119 AARNET-AS-AP Australian Academic and Re 4538 130 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 2746 3639 390 GOOGLE-CLOUD-PLATFORM, US 16509 2188 1649 903 AMAZON-02, US 14618 851 4032 642 AMAZON-AES, US 15169 831 1997 60 GOOGLE, US 376 200 162 150 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 36492 165 12 38 GOOGLEWIFI, US 2152 145 507 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 786 185 1767 182 JANET Jisc Services Limited, GB 8895 158 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 81 676 77 ASGARR Consortium GARR, IT 1930 79 88 74 RCCN Fundacao para a Ciencia e a Tecnol 3267 79 44 68 RUNNET, RU 553 78 462 78 BELWUE BelWue-Koordination, DE 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 173 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 154 10 67 Universidad Juarez Autonoma de Tabasco, 27947 121 0 92 Telconet S.A, EC 11340 116 25 53 Red Universitaria Nacional, CL 271640 68 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 4270 50 17 3 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 1251 35 32 25 FUNDACAO DE AMPARO A PESQUISA DO ESTADO 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 487 82 3 KENET-AS, KE 2018 380 319 71 TENET-1, ZA 327687 163 28 3 RENU, UG 8094 47 48 18 PUKNET, ZA 327700 44 16 1 MoRENet, MZ 6879 24 2 9 ENSTINET-, EG 37215 11 8 1 MAREN, MW 37501 11 49 6 UOFS, ZA 37654 11 1 6 RwEdNet-AS, RW 36982 8 33 8 UCT, ZA 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 2746 3639 390 GOOGLE-CLOUD-PLATFORM, US 16509 2188 1649 903 AMAZON-02, US 14618 851 4032 642 AMAZON-AES, US 15169 831 1997 60 GOOGLE, US 2907 600 2162 465 SINET-AS Research Organization of Infor 36914 487 82 3 KENET-AS, KE 7497 439 180 23 CSTNET-AS-AP Computer Network Informati 2018 380 319 71 TENET-1, ZA 680 283 1899 249 DFN Verein zur Foerderung eines Deutsch 376 200 162 150 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 2188 1285 AMAZON-02, US 15169 831 771 GOOGLE, US 36914 487 484 KENET-AS, KE 7497 439 416 CSTNET-AS-AP Computer Network Information Cente 2018 380 309 TENET-1, ZA 14618 851 209 AMAZON-AES, US 5786 197 196 UPRENET, PR 58647 180 178 KAGAWAU-AS Kagawa University, JP 327687 163 160 RENU, UG 8895 158 153 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 /16:2099 /17:509 /18:496 /19:731 /20:2787 /21:1050 /22:1675 /23:1751 /24:13909 /25:84 /26:55 /27:71 /28:21 /29:84 /30:37 /31:35 /32:9 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 36914 472 487 KENET-AS, KE 16509 314 2188 AMAZON-02, US 14618 284 851 AMAZON-AES, US 15169 275 831 GOOGLE, US 396982 204 2746 GOOGLE-CLOUD-PLATFORM, US 8895 153 158 ISU Internet Services Unit ISU, SA 27947 98 121 Telconet S.A, EC 32440 81 113 LONI, US 23024 52 109 OCDE, US 327700 38 44 MoRENet, MZ Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:82 5:21 8:28 12:1 13:45 14:89 15:70 16:112 18:66 23:110 24:3 31:9 34:23 35:51 38:9 40:5 41:180 42:10 43:2 44:9 45:60 46:11 47:1 49:9 50:3 52:555 54:212 58:1 59:19 60:6 61:3 62:10 63:36 64:164 65:13 66:77 67:61 68:14 69:40 70:44 71:3 72:13 74:145 76:47 77:12 78:3 79:9 80:13 81:25 82:7 83:7 84:10 85:47 86:4 87:4 88:1 89:19 91:59 92:5 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:36 103:296 104:226 107:33 108:105 109:10 111:16 114:32 115:1 116:10 117:61 118:32 119:19 121:27 122:8 123:8 124:40 125:5 128:84 129:48 130:138 131:68 132:52 133:155 134:109 135:3 136:297 137:151 138:58 139:17 140:38 141:7 142:284 143:22 144:39 145:3 146:144 147:68 148:202 149:17 150:43 151:17 152:134 153:14 154:30 155:73 156:69 157:24 158:42 159:148 160:30 161:28 162:92 163:87 164:23 165:53 166:1 167:24 168:151 169:11 170:144 171:1 172:114 173:117 174:2 175:18 176:10 177:6 178:1 179:8 180:15 182:1 184:3 185:106 186:3 187:16 188:20 189:3 190:3 191:13 192:1486 193:283 194:128 195:76 196:203 197:333 198:471 199:304 200:266 201:35 202:628 203:424 204:368 205:150 206:204 207:172 208:137 209:166 210:196 211:14 212:160 213:15 216:175 217:12 218:22 219:5 220:15 222:2 223:14 End of report