IPv4 R&E Routing Table Report 20:15 GMT Wed 06 Aug, 2025 IPv4 BGP Table (R&E) as seen at KREONet2. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/ Analysis Summary ---------------- BGP routing table entries examined: 280849 Prefixes after maximum aggregation (per Origin AS): 120238 Deaggregation factor: 2.34 Unique aggregates announced (without unneeded subnets): 143181 Number of IPv4 prefixes with a valid ROA: 131436 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 149371 Total ASes present in the Internet Routing Table: 20587 Prefixes per ASN: 13.64 Origin-only ASes present in the Internet Routing Table: 17729 Origin ASes announcing only one prefix: 7873 Transit ASes present in the Internet Routing Table: 2858 Transit-only ASes present in the Internet Routing Table: 706 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 361 Number of instances of unregistered ASNs: 390 Number of 32-bit ASNs allocated by the RIRs: 47065 Number of 32-bit ASNs visible in the Routing Table: 8105 Prefixes from 32-bit ASNs in the Routing Table: 32909 Number of bogon 32-bit ASNs visible in the Routing Table: 68 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 121 Number of addresses announced to Internet: 1640130053 Equivalent to 97 /8s, 194 /16s and 102 /24s Percentage of available address space announced: 44.3 Percentage of allocated address space announced: 44.3 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: 89535 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35982 Total APNIC prefixes after maximum aggregation: 7642 APNIC Deaggregation factor: 4.71 Prefixes being announced from the APNIC address blocks: 34937 Unique aggregates announced from the APNIC address blocks: 8011 APNIC Region origin ASes present in the Internet Routing Table: 1202 APNIC Prefixes per ASN: 29.07 APNIC Region origin ASes announcing only one prefix: 468 APNIC Region transit ASes present in the Internet Routing Table: 192 Average APNIC Region AS path length visible: 7.4 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 561 Number of APNIC addresses announced to Internet: 174413164 Equivalent to 10 /8s, 101 /16s and 85 /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, 131072-155961 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: 126560 Total ARIN prefixes after maximum aggregation: 66576 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125029 Unique aggregates announced from the ARIN address blocks: 68354 ARIN Region origin ASes present in the Internet Routing Table: 9286 ARIN Prefixes per ASN: 13.46 ARIN Region origin ASes announcing only one prefix: 3840 ARIN Region transit ASes present in the Internet Routing Table: 884 Average ARIN Region AS path length visible: 5.4 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2176 Number of ARIN addresses announced to Internet: 1028145673 Equivalent to 61 /8s, 72 /16s and 66 /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, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 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: 50440 Total RIPE prefixes after maximum aggregation: 27242 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52019 Unique aggregates announced from the RIPE address blocks: 38038 RIPE Region origin ASes present in the Internet Routing Table: 4683 RIPE Prefixes per ASN: 11.11 RIPE Region origin ASes announcing only one prefix: 1948 RIPE Region transit ASes present in the Internet Routing Table: 704 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1939 Number of RIPE addresses announced to Internet: 282155856 Equivalent to 16 /8s, 209 /16s and 91 /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, 53/8, 57/8, 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: 56304 Total LACNIC prefixes after maximum aggregation: 16184 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 54544 Unique aggregates announced from the LACNIC address blocks: 24312 LACNIC Region origin ASes present in the Internet Routing Table: 4307 LACNIC Prefixes per ASN: 12.66 LACNIC Region origin ASes announcing only one prefix: 1524 LACNIC Region transit ASes present in the Internet Routing Table: 873 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3287 Number of LACNIC addresses announced to Internet: 109067072 Equivalent to 6 /8s, 128 /16s and 59 /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: 11202 Total AfriNIC prefixes after maximum aggregation: 2333 AfriNIC Deaggregation factor: 4.80 Prefixes being announced from the AfriNIC address blocks: 14199 Unique aggregates announced from the AfriNIC address blocks: 4347 AfriNIC Region origin ASes present in the Internet Routing Table: 274 AfriNIC Prefixes per ASN: 51.82 AfriNIC Region origin ASes announcing only one prefix: 93 AfriNIC Region transit ASes present in the Internet Routing Table: 75 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 142 Number of AfriNIC addresses announced to Internet: 46231040 Equivalent to 2 /8s, 193 /16s and 110 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 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 9808 12372 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1661 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1643 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 869 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 802 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 132525 593 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 537 893 139 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13692 41057 5281 AMAZON-02, US 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2898 220 1735 USDA-1, US 36352 2560 210 1137 AS-COLOCROSSING, US 367 2452 2959 1155 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1588 22825 1187 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 1936 130 50 ALJAWWALSTC-AS, SA 20940 1219 96 990 AKAMAI-ASN1, NL 3257 1065 2083 815 GTT-BACKBONE GTT, US 34984 940 118 606 TELLCOM-AS, TR 3215 888 4818 292 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 25019 801 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 8376 582 53 23 Jordan Data Communications, JO 51167 564 113 248 CONTABO, DE Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 7408 2000 883 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1691 242 1219 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 26615 1016 2487 55 TIM SA, BR 18881 887 1127 31 TELEFONICA BRASIL S.A, BR 11664 780 278 29 Techtel LMDS Comunicaciones Interactivas 11172 728 124 69 Alestra, S. de R.L. de C.V., MX 27651 650 92 45 ENTEL CHILE S.A., CL Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1492 572 23 RAYA-AS, EG 29571 1181 98 104 ORANGE-COTE-IVOIRE, CI 24863 1021 388 20 LINKdotNET-AS, EG 37069 865 1112 11 MOBINIL, EG 36935 594 518 29 Vodafone-, EG 36914 575 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 504 1086 217 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 13692 41057 5281 AMAZON-02, US 9808 12372 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7408 2000 883 UNINET, MX 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 4155 2898 220 1735 USDA-1, US 36352 2560 210 1137 AS-COLOCROSSING, US 367 2452 2959 1155 DNIC-ASBLK-00306-00371, US 11830 1987 369 64 Instituto Costarricense de Electricidad y Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 12372 12257 CHINAMOBILE-CN China Mobile Communications Grou 8151 7408 6525 UNINET, MX 22773 3337 3174 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2905 2715 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1661 1611 CMNET-HUNAN-AP China Mobile communications corp 56041 1643 1565 CMNET-ZHEJIANG-AP China Mobile communications c 24835 1492 1469 RAYA-AS, EG Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.37.59.0/24 7018 ATT-INTERNET4, US 31781 UNALLOCATED 12.71.107.0/24 7018 ATT-INTERNET4, US 21861 UNALLOCATED 12.106.212.0/24 7018 ATT-INTERNET4, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.140.216.0/24 Origin: 27176 DATAWAGON, US 23.140.216.0/24 Transit: 20278 NEXEON, US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.147.224.0/24 Origin: 27392 639-DATACENTERS, US 23.147.224.0/24 Transit: 3356 LEVEL3, US 23.147.225.0/24 Origin: 27392 639-DATACENTERS, US 23.147.225.0/24 Transit: 3356 LEVEL3, US 23.147.226.0/24 Origin: 27392 639-DATACENTERS, US 23.147.226.0/24 Transit: 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:14 /9:11 /10:30 /11:51 /12:159 /13:215 /14:592 /15:1120 /16:7774 /17:3496 /18:4245 /19:7823 /20:13285 /21:16101 /22:28906 /23:29406 /24:167371 /25:67 /26:85 /27:52 /28:18 /29:11 /30:11 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3995 7408 UNINET, MX 22773 2492 3337 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2335 13692 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1027 1363 BRSPD-PUBLIC, US 36352 1018 2560 AS-COLOCROSSING, US 10620 997 1691 Telmex Colombia S.A., CO 209 962 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1902 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:28 2:461 3:864 4:5 5:809 6:145 7:5 8:654 9:1 11:171 12:960 13:403 14:112 15:310 16:247 17:3 18:892 20:191 21:4 22:188 23:2648 24:678 27:22 29:19 31:496 32:18 33:1 34:10 35:175 36:2971 37:757 38:2602 39:597 40:83 41:1080 42:21 43:227 44:27 45:4187 46:1004 47:111 49:25 50:474 51:385 52:1379 54:316 55:1094 56:11 57:24 58:17 59:35 60:32 61:60 62:524 63:786 64:1929 65:1102 66:1615 67:1096 68:370 69:1268 70:456 71:189 72:691 74:962 75:320 76:265 77:474 78:351 79:245 80:313 81:374 82:761 83:234 84:337 85:470 86:249 87:205 88:304 89:707 90:108 91:989 92:688 93:460 94:964 95:661 96:264 97:53 98:501 99:188 100:40 101:29 102:391 103:1310 104:1680 105:193 106:47 107:1560 108:536 109:440 110:48 111:2159 112:800 113:38 114:54 115:33 116:55 117:1185 118:83 119:65 120:1478 121:50 122:60 123:149 124:69 125:26 126:1 128:526 129:402 130:674 131:1023 132:564 133:212 134:490 135:126 136:675 137:522 138:1018 139:451 140:678 141:378 142:1025 143:825 144:434 145:155 146:654 147:512 148:1002 149:722 150:210 151:818 152:623 153:132 154:1215 155:905 156:948 157:425 158:574 159:722 160:905 161:651 162:1056 163:446 164:733 165:632 166:814 167:692 168:1558 169:165 170:1770 171:103 172:1334 173:821 174:359 175:92 176:847 177:1011 178:613 179:836 180:43 181:2284 182:31 183:1121 184:459 185:3477 186:2994 187:1593 188:802 189:1966 190:6054 191:545 192:5252 193:1853 194:1202 195:938 196:730 197:1176 198:2762 199:5078 200:4631 201:3818 202:987 203:697 204:2219 205:1820 206:1585 207:1622 208:1587 209:1976 210:343 211:474 212:943 213:771 214:944 215:37 216:2594 217:451 218:573 219:18 220:44 221:472 222:24 223:1212 End of report