IPv4 R&E Routing Table Report 20:15 GMT Mon 11 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: 280545 Prefixes after maximum aggregation (per Origin AS): 120281 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143682 Number of IPv4 prefixes with a valid ROA: 132321 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 148182 Total ASes present in the Internet Routing Table: 20724 Prefixes per ASN: 13.54 Origin-only ASes present in the Internet Routing Table: 17851 Origin ASes announcing only one prefix: 7955 Transit ASes present in the Internet Routing Table: 2873 Transit-only ASes present in the Internet Routing Table: 721 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: 335 Number of instances of unregistered ASNs: 364 Number of 32-bit ASNs allocated by the RIRs: 47115 Number of 32-bit ASNs visible in the Routing Table: 8202 Prefixes from 32-bit ASNs in the Routing Table: 33279 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: 100 Number of addresses announced to Internet: 1642196741 Equivalent to 97 /8s, 225 /16s and 239 /24s Percentage of available address space announced: 44.4 Percentage of allocated address space announced: 44.4 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: 89239 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36397 Total APNIC prefixes after maximum aggregation: 7699 APNIC Deaggregation factor: 4.73 Prefixes being announced from the APNIC address blocks: 35307 Unique aggregates announced from the APNIC address blocks: 8267 APNIC Region origin ASes present in the Internet Routing Table: 1215 APNIC Prefixes per ASN: 29.06 APNIC Region origin ASes announcing only one prefix: 476 APNIC Region transit ASes present in the Internet Routing Table: 196 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: 569 Number of APNIC addresses announced to Internet: 174844268 Equivalent to 10 /8s, 107 /16s and 233 /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: 127040 Total ARIN prefixes after maximum aggregation: 66767 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125003 Unique aggregates announced from the ARIN address blocks: 68621 ARIN Region origin ASes present in the Internet Routing Table: 9301 ARIN Prefixes per ASN: 13.44 ARIN Region origin ASes announcing only one prefix: 3866 ARIN Region transit ASes present in the Internet Routing Table: 881 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: 2178 Number of ARIN addresses announced to Internet: 1025321737 Equivalent to 61 /8s, 29 /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, 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: 49399 Total RIPE prefixes after maximum aggregation: 26931 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51539 Unique aggregates announced from the RIPE address blocks: 37931 RIPE Region origin ASes present in the Internet Routing Table: 4709 RIPE Prefixes per ASN: 10.94 RIPE Region origin ASes announcing only one prefix: 1958 RIPE Region transit ASes present in the Internet Routing Table: 712 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: 1965 Number of RIPE addresses announced to Internet: 283692624 Equivalent to 16 /8s, 232 /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, 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: 56267 Total LACNIC prefixes after maximum aggregation: 16189 LACNIC Deaggregation factor: 3.48 Prefixes being announced from the LACNIC address blocks: 54455 Unique aggregates announced from the LACNIC address blocks: 24318 LACNIC Region origin ASes present in the Internet Routing Table: 4352 LACNIC Prefixes per ASN: 12.51 LACNIC Region origin ASes announcing only one prefix: 1553 LACNIC Region transit ASes present in the Internet Routing Table: 864 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: 3331 Number of LACNIC addresses announced to Internet: 108994112 Equivalent to 6 /8s, 127 /16s and 30 /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: 11107 Total AfriNIC prefixes after maximum aggregation: 2440 AfriNIC Deaggregation factor: 4.55 Prefixes being announced from the AfriNIC address blocks: 14141 Unique aggregates announced from the AfriNIC address blocks: 4451 AfriNIC Region origin ASes present in the Internet Routing Table: 297 AfriNIC Prefixes per ASN: 47.61 AfriNIC Region origin ASes announcing only one prefix: 102 AfriNIC Region transit ASes present in the Internet Routing Table: 84 Average AfriNIC Region AS path length visible: 6.3 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 159 Number of AfriNIC addresses announced to Internet: 49232128 Equivalent to 2 /8s, 239 /16s and 57 /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 12437 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1679 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1662 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 869 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 803 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 604 2152 461 SINET-AS Research Organization of Informa 132525 594 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 538 893 140 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 13774 41094 5310 AMAZON-02, US 22773 3335 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2918 227 1731 USDA-1, US 36352 2552 209 1134 AS-COLOCROSSING, US 367 2450 2965 1146 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1666 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1582 22816 1181 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 1212 95 987 AKAMAI-ASN1, NL 3215 889 4819 293 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 672 48 596 CDNEXT, GB 34984 663 100 512 TELLCOM-AS, TR 8376 605 53 23 Jordan Data Communications, JO 8452 600 1841 16 TE-AS TE-AS, EG 51167 564 113 248 CONTABO, DE 35819 537 542 60 MOBILY-AS Etihad Etisalat Company Mobily, 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 7388 1995 876 UNINET, MX 11830 1986 369 64 Instituto Costarricense de Electricidad y 10620 1653 238 1201 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1184 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 782 278 29 Techtel LMDS Comunicaciones Interactivas 11172 727 124 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 1333 572 23 RAYA-AS, EG 29571 1130 93 63 ORANGE-COTE-IVOIRE, CI 24863 1017 388 19 LINKdotNET-AS, EG 36935 594 518 29 Vodafone-, EG 36914 574 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36903 534 239 349 MT-MPLS, MA 37069 501 1112 11 MOBINIL, EG 36992 434 1036 210 ETISALAT-MISR, EG 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 13774 41094 5310 AMAZON-02, US 9808 12437 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7388 1995 876 UNINET, MX 22773 3335 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2918 227 1731 USDA-1, US 56046 2905 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2552 209 1134 AS-COLOCROSSING, US 367 2450 2965 1146 DNIC-ASBLK-00306-00371, US 11830 1986 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 12437 12322 CHINAMOBILE-CN China Mobile Communications Grou 8151 7388 6512 UNINET, MX 22773 3335 3173 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2905 2715 CMNET-JIANGSU-AP China Mobile communications co 11830 1986 1922 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1679 1629 CMNET-HUNAN-AP China Mobile communications corp 56041 1662 1584 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1948 1428 CELLCO-PART, US 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 /11:52 /12:160 /13:223 /14:593 /15:1118 /16:7804 /17:3491 /18:4197 /19:7664 /20:12850 /21:16095 /22:28785 /23:29470 /24:167740 /25:67 /26:83 /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 3985 7388 UNINET, MX 22773 2491 3335 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2345 13774 AMAZON-02, US 11830 1690 1986 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1030 1367 BRSPD-PUBLIC, US 36352 1016 2552 AS-COLOCROSSING, US 10620 964 1653 Telmex Colombia S.A., CO 209 962 1666 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) ---------------------------------------------- 1:76 2:471 3:872 4:5 5:863 6:144 7:5 8:651 9:1 11:171 12:960 13:414 14:114 15:312 16:247 17:3 18:892 20:191 21:4 22:188 23:2649 24:662 27:23 29:19 31:495 32:18 34:10 35:175 36:2998 37:762 38:2584 39:617 40:84 41:1105 42:152 43:223 44:31 45:4256 46:1041 47:112 49:25 50:481 51:381 52:1380 54:317 55:1110 56:11 57:26 58:43 59:31 60:31 61:58 62:526 63:789 64:1934 65:1097 66:1568 67:1089 68:367 69:1254 70:451 71:189 72:695 74:967 75:320 76:250 77:454 78:361 79:247 80:304 81:384 82:742 83:230 84:327 85:466 86:246 87:203 88:303 89:700 90:108 91:986 92:692 93:456 94:973 95:661 96:268 97:54 98:503 99:193 100:40 101:30 102:424 103:1292 104:1672 105:210 106:47 107:1561 108:539 109:412 110:46 111:2174 112:824 113:47 114:54 115:33 116:52 117:1203 118:89 119:67 120:1478 121:50 122:60 123:150 124:69 125:26 126:1 128:528 129:402 130:684 131:976 132:572 133:212 134:488 135:121 136:674 137:523 138:1022 139:450 140:684 141:380 142:998 143:834 144:433 145:159 146:653 147:513 148:983 149:760 150:223 151:841 152:640 153:135 154:1243 155:915 156:936 157:422 158:570 159:716 160:900 161:658 162:1042 163:451 164:748 165:688 166:810 167:687 168:1567 169:167 170:1812 171:102 172:1319 173:817 174:362 175:89 176:503 177:978 178:595 179:836 180:44 181:2286 182:23 183:1143 184:457 185:3575 186:2956 187:1564 188:795 189:1928 190:6129 191:534 192:5227 193:1836 194:1199 195:941 196:924 197:1197 198:2783 199:5081 200:4636 201:3750 202:988 203:697 204:2211 205:1840 206:1586 207:1632 208:1590 209:1946 210:347 211:479 212:907 213:763 214:949 215:37 216:2608 217:474 218:580 219:19 220:43 221:472 222:24 223:1218 End of report