IPv4 R&E Routing Table Report 22:10 GMT Mon 21 Aug, 2023 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: 25287 Prefixes after maximum aggregation (per Origin AS): 12424 Deaggregation factor: 2.04 Unique aggregates announced (without unneeded subnets): 14047 Number of IPv4 prefixes with a valid ROA: 11639 Number of IPv4 prefixes with an invalid ROA: 196 Number of IPv4 prefixes with no ROA: 13452 Total ASes present in the Internet Routing Table: 2745 Prefixes per ASN: 9.21 Origin-only ASes present in the Internet Routing Table: 2351 Origin ASes announcing only one prefix: 1034 Transit ASes present in the Internet Routing Table: 394 Transit-only ASes present in the Internet Routing Table: 77 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 16 Max AS path prepend of ASN (395156) 12 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: 42488 Number of 32-bit ASNs visible in the Routing Table: 627 Prefixes from 32-bit ASNs in the Routing Table: 4654 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: 5 Number of addresses announced to Internet: 242314278 Equivalent to 14 /8s, 113 /16s and 108 /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: 3369 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 4653 Total APNIC prefixes after maximum aggregation: 2277 APNIC Deaggregation factor: 2.04 Prefixes being announced from the APNIC address blocks: 4696 Unique aggregates announced from the APNIC address blocks: 2648 APNIC Region origin ASes present in the Internet Routing Table: 543 APNIC Prefixes per ASN: 8.65 APNIC Region origin ASes announcing only one prefix: 229 APNIC Region transit ASes present in the Internet Routing Table: 61 Average APNIC Region AS path length visible: 5.7 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 203 Number of APNIC addresses announced to Internet: 45841984 Equivalent to 2 /8s, 187 /16s and 126 /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: 14304 Total ARIN prefixes after maximum aggregation: 6407 ARIN Deaggregation factor: 2.23 Prefixes being announced from the ARIN address blocks: 14093 Unique aggregates announced from the ARIN address blocks: 7168 ARIN Region origin ASes present in the Internet Routing Table: 1224 ARIN Prefixes per ASN: 11.51 ARIN Region origin ASes announcing only one prefix: 424 ARIN Region transit ASes present in the Internet Routing Table: 166 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 16 Number of ARIN region 32-bit ASNs visible in the Routing Table: 190 Number of ARIN addresses announced to Internet: 131544353 Equivalent to 7 /8s, 215 /16s and 53 /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: 3629 Total RIPE prefixes after maximum aggregation: 2871 RIPE Deaggregation factor: 1.26 Prefixes being announced from the RIPE address blocks: 3791 Unique aggregates announced from the RIPE address blocks: 3110 RIPE Region origin ASes present in the Internet Routing Table: 685 RIPE Prefixes per ASN: 5.53 RIPE Region origin ASes announcing only one prefix: 302 RIPE Region transit ASes present in the Internet Routing Table: 106 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 13 Number of RIPE region 32-bit ASNs visible in the Routing Table: 142 Number of RIPE addresses announced to Internet: 58012160 Equivalent to 3 /8s, 117 /16s and 50 /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: 1635 Total LACNIC prefixes after maximum aggregation: 694 LACNIC Deaggregation factor: 2.36 Prefixes being announced from the LACNIC address blocks: 1640 Unique aggregates announced from the LACNIC address blocks: 892 LACNIC Region origin ASes present in the Internet Routing Table: 163 LACNIC Prefixes per ASN: 10.06 LACNIC Region origin ASes announcing only one prefix: 55 LACNIC Region transit ASes present in the Internet Routing Table: 29 Average LACNIC Region AS path length visible: 4.5 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: 4252869 Equivalent to 0 /8s, 64 /16s and 228 /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: 1062 Total AfriNIC prefixes after maximum aggregation: 171 AfriNIC Deaggregation factor: 6.21 Prefixes being announced from the AfriNIC address blocks: 1062 Unique aggregates announced from the AfriNIC address blocks: 224 AfriNIC Region origin ASes present in the Internet Routing Table: 50 AfriNIC Prefixes per ASN: 21.24 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 9 Average AfriNIC Region AS path length visible: 4.3 Max AfriNIC Region AS path length visible: 10 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 26 Number of AfriNIC addresses announced to Internet: 2661632 Equivalent to 0 /8s, 40 /16s and 157 /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 605 2163 466 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 1237 194 74 139 KREONET-AS-KR KISTI, KR 58647 178 18 2 KAGAWAU-AS Kagawa University, JP 7575 177 329 120 AARNET-AS-AP Australian Academic and Re 4538 130 4192 73 ERX-CERNET-BKB China Education and Rese 55824 125 18 17 NKN-CORE-NW NKN Core Network, IN 4621 68 37 9 UNINET-AS-AP UNINET-, TH 9411 66 16 2 NONTRINET-AS-AP Kasetsart University, T 4762 61 4 1 MAHIDOL-BORDER-AS Mahidol 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 2685 3596 387 GOOGLE-CLOUD-PLATFORM, US 16509 2135 1700 842 AMAZON-02, US 15169 825 1997 61 GOOGLE, US 14618 805 4019 604 AMAZON-AES, US 376 198 178 147 RISQ-AS, CA 5786 197 16 1 UPRENET, PR 36492 157 11 35 GOOGLEWIFI, US 2152 148 507 92 CSUNET-NW, US 18558 136 18 4 NETBLK-RCOEK, US 81 127 521 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 1903 249 DFN Verein zur Foerderung eines Deutsch 786 185 1767 182 JANET Jisc Services Limited, GB 8895 163 24 5 ISU Internet Services Unit ISU, SA 559 113 533 105 SWITCH Peering requests: peering@switch 1103 94 1502 83 SURFNET-NL SURFnet, The Netherlands, NL 2614 94 27 74 ROEDUNET, RO 137 82 677 77 ASGARR Consortium GARR, IT 553 74 465 74 BELWUE BelWue-Koordination, DE 1930 65 81 60 RCCN Fundacao para a Ciencia e a Tecnol 2200 64 599 59 FR-RENATER Reseau National de telecommu 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 260 176 43 Rede Nacional de Ensino e Pesquisa, BR 28391 153 10 67 Universidad Juarez Autonoma de Tabasco, 27947 126 0 95 Telconet S.A, EC 11340 115 25 52 Red Universitaria Nacional, CL 271640 73 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 2715 58 102 38 Fundacao Carlos Chagas Filho de Amparo 4270 48 16 1 Red de Interconexion Universitaria, AR 19611 48 17 2 Associacao Antonio Vieira - Unisinos, B 28614 38 2 2 Fundacao Universidade Regional de Blume 3596 35 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 2018 368 319 71 TENET-1, ZA 36914 263 82 3 KENET-AS, KE 327687 166 28 3 RENU, UG 8094 48 48 15 PUKNET, ZA 327700 42 16 1 MoRENet, MZ 3208 32 2 1 ARN, DZ 6879 24 2 9 ENSTINET-, EG 37074 14 8 2 UG-AS, GH 37501 11 49 6 UOFS, ZA 37654 10 1 6 RwEdNet-AS, RW 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 2685 3596 387 GOOGLE-CLOUD-PLATFORM, US 16509 2135 1700 842 AMAZON-02, US 15169 825 1997 61 GOOGLE, US 14618 805 4019 604 AMAZON-AES, US 2907 605 2163 466 SINET-AS Research Organization of Infor 7497 435 180 23 CSTNET-AS-AP Computer Network Informati 2018 368 319 71 TENET-1, ZA 680 283 1903 249 DFN Verein zur Foerderung eines Deutsch 36914 263 82 3 KENET-AS, KE 1916 260 176 43 Rede Nacional de Ensino e Pesquisa, BR 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 2135 1293 AMAZON-02, US 15169 825 764 GOOGLE, US 7497 435 412 CSTNET-AS-AP Computer Network Information Cente 2018 368 297 TENET-1, ZA 36914 263 260 KENET-AS, KE 1916 260 217 Rede Nacional de Ensino e Pesquisa, BR 14618 805 201 AMAZON-AES, US 5786 197 196 UPRENET, PR 58647 178 176 KAGAWAU-AS Kagawa University, JP 327687 166 163 RENU, UG 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 394607 UNALLOCATED 104.249.65.0/24 23024 OCDE, US 33008 UNALLOCATED 162.248.66.0/24 11096 FLORIDANET, US 64507 DOCUMENT 170.79.91.8/29 27817 Red Nacional Academica de Te 394607 UNALLOCATED 216.100.93.0/24 23024 OCDE, US Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 192.31.196.0/24 Origin: 112 RESERVED, ZZ 192.31.196.0/24 Transit: 1103 SURFNET-NL SURFnet, The Netherlands, NL 193.37.39.0/24 Origin: 16509 AMAZON-02, US 193.37.39.0/24 Transit: 27750 Cooperacion Latino Americana de Redes Av 193.84.26.0/24 Origin: 16509 AMAZON-02, US 193.84.26.0/24 Transit: 27750 Cooperacion Latino Americana de Redes Av 198.135.168.0/24 Origin: 14618 AMAZON-AES, US 198.135.168.0/24 Transit: 16509 AMAZON-02, US 202.58.231.0/24 Origin: 134096 EHEALTHNSW-AS-AP eHealth NSW, AU 202.58.231.0/24 Transit: 7575 AARNET-AS-AP Australian Academic and Res 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 /10:2 /11:4 /12:19 /13:34 /14:81 /15:161 /16:2092 /17:504 /18:470 /19:721 /20:2774 /21:1017 /22:1641 /23:1703 /24:13622 /25:92 /26:73 /27:80 /28:21 /29:86 /30:41 /31:35 /32:13 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 16509 297 2135 AMAZON-02, US 15169 274 825 GOOGLE, US 14618 262 805 AMAZON-AES, US 36914 251 263 KENET-AS, KE 396982 196 2685 GOOGLE-CLOUD-PLATFORM, US 8895 158 163 ISU Internet Services Unit ISU, SA 27947 99 126 Telconet S.A, EC 32440 80 109 LONI, US 23024 52 113 OCDE, US 1916 39 260 Rede Nacional de Ensino e Pesquisa, BR Complete listing at https://bgp.nsrc.org/REN/CEDIA/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2 3:72 5:20 8:28 12:1 13:45 14:89 15:69 16:112 18:57 23:111 24:3 31:9 34:20 35:47 38:9 40:1 41:121 42:10 43:1 44:8 45:59 46:11 47:1 49:9 50:2 52:558 54:228 58:1 59:19 60:4 61:3 62:11 63:36 64:162 65:13 66:69 67:60 68:10 69:36 70:42 71:3 72:13 74:143 76:46 77:11 78:3 79:10 80:14 81:26 82:6 83:6 84:10 85:46 86:10 87:2 88:1 89:17 91:57 92:4 93:4 94:4 95:2 96:7 97:1 98:11 99:47 101:3 102:34 103:283 104:217 107:33 108:103 109:12 111:16 114:31 115:1 116:8 117:61 118:32 119:18 121:28 122:8 123:8 124:39 125:4 128:87 129:47 130:142 131:62 132:60 133:152 134:105 135:3 136:293 137:146 138:11 139:17 140:38 141:4 142:271 143:21 144:39 145:3 146:144 147:67 148:200 149:17 150:43 151:14 152:139 153:14 154:29 155:73 156:69 157:23 158:43 159:148 160:29 161:36 162:85 163:85 164:20 165:50 166:1 167:22 168:159 169:12 170:120 171:1 172:114 173:113 174:2 175:26 176:11 177:5 178:1 179:9 180:15 182:1 184:5 185:103 186:3 187:18 188:19 189:3 190:5 191:13 192:1481 193:308 194:125 195:86 196:202 197:168 198:488 199:305 200:332 201:36 202:628 203:417 204:370 205:146 206:203 207:189 208:128 209:164 210:190 211:14 212:170 213:15 216:165 217:11 218:22 219:5 220:16 222:2 223:14 End of report