IPv4 R&E Routing Table Report 20:15 GMT Fri 15 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: 279906 Prefixes after maximum aggregation (per Origin AS): 120113 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143280 Number of IPv4 prefixes with a valid ROA: 131320 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 148545 Total ASes present in the Internet Routing Table: 20665 Prefixes per ASN: 13.54 Origin-only ASes present in the Internet Routing Table: 17821 Origin ASes announcing only one prefix: 7953 Transit ASes present in the Internet Routing Table: 2844 Transit-only ASes present in the Internet Routing Table: 707 Paths with bogon ASNs present in the IPv4 Routing Table: 10 Average AS path length visible in the Internet Routing Table: 5.9 Max AS path length visible: 38 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 349 Number of instances of unregistered ASNs: 378 Number of 32-bit ASNs allocated by the RIRs: 47163 Number of 32-bit ASNs visible in the Routing Table: 8173 Prefixes from 32-bit ASNs in the Routing Table: 33113 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: 105 Number of addresses announced to Internet: 1639706375 Equivalent to 97 /8s, 187 /16s and 239 /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: 89038 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36444 Total APNIC prefixes after maximum aggregation: 7590 APNIC Deaggregation factor: 4.80 Prefixes being announced from the APNIC address blocks: 35308 Unique aggregates announced from the APNIC address blocks: 8076 APNIC Region origin ASes present in the Internet Routing Table: 1205 APNIC Prefixes per ASN: 29.30 APNIC Region origin ASes announcing only one prefix: 475 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: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 561 Number of APNIC addresses announced to Internet: 173651310 Equivalent to 10 /8s, 89 /16s and 181 /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: 126646 Total ARIN prefixes after maximum aggregation: 66574 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124809 Unique aggregates announced from the ARIN address blocks: 68510 ARIN Region origin ASes present in the Internet Routing Table: 9279 ARIN Prefixes per ASN: 13.45 ARIN Region origin ASes announcing only one prefix: 3853 ARIN Region transit ASes present in the Internet Routing Table: 872 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: 2180 Number of ARIN addresses announced to Internet: 1023588361 Equivalent to 61 /8s, 2 /16s and 184 /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: 49389 Total RIPE prefixes after maximum aggregation: 27034 RIPE Deaggregation factor: 1.83 Prefixes being announced from the RIPE address blocks: 51507 Unique aggregates announced from the RIPE address blocks: 37938 RIPE Region origin ASes present in the Internet Routing Table: 4711 RIPE Prefixes per ASN: 10.93 RIPE Region origin ASes announcing only one prefix: 1963 RIPE Region transit ASes present in the Internet Routing Table: 717 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: 1972 Number of RIPE addresses announced to Internet: 283284560 Equivalent to 16 /8s, 226 /16s and 148 /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: 55852 Total LACNIC prefixes after maximum aggregation: 16165 LACNIC Deaggregation factor: 3.46 Prefixes being announced from the LACNIC address blocks: 54031 Unique aggregates announced from the LACNIC address blocks: 24220 LACNIC Region origin ASes present in the Internet Routing Table: 4312 LACNIC Prefixes per ASN: 12.53 LACNIC Region origin ASes announcing only one prefix: 1543 LACNIC Region transit ASes present in the Internet Routing Table: 845 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: 3286 Number of LACNIC addresses announced to Internet: 108884544 Equivalent to 6 /8s, 125 /16s and 114 /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: 11226 Total AfriNIC prefixes after maximum aggregation: 2486 AfriNIC Deaggregation factor: 4.52 Prefixes being announced from the AfriNIC address blocks: 14146 Unique aggregates announced from the AfriNIC address blocks: 4437 AfriNIC Region origin ASes present in the Internet Routing Table: 315 AfriNIC Prefixes per ASN: 44.91 AfriNIC Region origin ASes announcing only one prefix: 119 AfriNIC Region transit ASes present in the Internet Routing Table: 79 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 174 Number of AfriNIC addresses announced to Internet: 50183680 Equivalent to 2 /8s, 253 /16s and 190 /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 12685 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1686 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1667 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 859 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 817 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 608 2137 469 SINET-AS Research Organization of Informa 132525 594 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 540 894 138 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 13810 41098 5330 AMAZON-02, US 22773 3339 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2939 229 1742 USDA-1, US 36352 2526 207 1159 AS-COLOCROSSING, US 367 2415 2914 1114 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1665 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1577 22815 1176 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 1215 95 991 AKAMAI-ASN1, NL 3215 889 4819 293 France Telecom - Orange, FR 25019 804 1301 130 SAUDINETSTC-AS, SA 212238 672 48 597 CDNEXT, GB 34984 645 97 502 TELLCOM-AS, TR 8376 614 53 26 Jordan Data Communications, JO 8452 600 1841 16 TE-AS TE-AS, EG 51167 564 113 248 CONTABO, DE 35819 520 516 55 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 7316 1972 833 UNINET, MX 11830 1983 369 64 Instituto Costarricense de Electricidad y 10620 1654 238 1202 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 891 1127 31 TELEFONICA BRASIL S.A, BR 11664 801 278 29 Techtel LMDS Comunicaciones Interactivas 27651 650 92 45 ENTEL CHILE S.A., CL 28006 644 76 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 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 1267 572 23 RAYA-AS, EG 29571 1156 93 56 ORANGE-COTE-IVOIRE, CI 24863 906 389 23 LINKdotNET-AS, EG 37069 679 1112 11 MOBINIL, EG 36935 616 520 39 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 573 82 3 KENET-AS, KE 36903 563 246 362 MT-MPLS, MA 36992 433 1037 209 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 13810 41098 5330 AMAZON-02, US 9808 12685 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7316 1972 833 UNINET, MX 22773 3339 3013 162 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2939 229 1742 USDA-1, US 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2526 207 1159 AS-COLOCROSSING, US 367 2415 2914 1114 DNIC-ASBLK-00306-00371, US 11830 1983 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 12685 12570 CHINAMOBILE-CN China Mobile Communications Grou 8151 7316 6483 UNINET, MX 22773 3339 3177 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2907 2717 CMNET-JIANGSU-AP China Mobile communications co 11830 1983 1919 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1686 1636 CMNET-HUNAN-AP China Mobile communications corp 56041 1667 1589 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 32182 UNALLOCATED 8.9.96.0/23 3356 LEVEL3, US 46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US 396146 UNALLOCATED 8.21.227.0/24 3356 LEVEL3, 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 396146 UNALLOCATED 8.44.213.0/24 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 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 /15:1117 /16:7790 /17:3490 /18:4199 /19:7645 /20:12961 /21:15985 /22:28459 /23:29322 /24:167611 /25:66 /26:83 /27:52 /28:18 /29:10 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3961 7316 UNINET, MX 22773 2495 3339 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2365 13810 AMAZON-02, US 11830 1687 1983 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1036 1385 BRIGHTSPEED, US 36352 1008 2526 AS-COLOCROSSING, US 10620 965 1654 Telmex Colombia S.A., CO 209 961 1665 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 2:464 3:882 4:5 5:867 6:145 7:5 8:649 9:2 11:171 12:883 13:399 14:114 15:319 16:247 17:3 18:894 20:191 21:4 22:188 23:2650 24:661 27:22 29:19 31:513 32:12 34:10 35:174 36:3055 37:748 38:2600 39:632 40:88 41:1108 42:152 43:206 44:30 45:4229 46:1035 47:114 49:25 50:483 51:384 52:1377 54:315 55:1107 56:11 57:26 58:44 59:30 60:32 61:53 62:539 63:785 64:1944 65:1098 66:1584 67:1086 68:363 69:1254 70:450 71:189 72:690 74:964 75:322 76:248 77:422 78:359 79:246 80:308 81:384 82:731 83:228 84:324 85:470 86:255 87:220 88:302 89:704 90:108 91:988 92:694 93:457 94:969 95:666 96:266 97:54 98:504 99:201 100:40 101:30 102:434 103:1255 104:1672 105:230 106:47 107:1553 108:541 109:406 110:51 111:2276 112:852 113:46 114:54 115:33 116:50 117:1206 118:73 119:68 120:1497 121:49 122:61 123:150 124:69 125:26 126:1 128:541 129:401 130:667 131:995 132:561 133:212 134:509 135:121 136:673 137:518 138:1029 139:448 140:696 141:380 142:992 143:831 144:426 145:127 146:649 147:511 148:993 149:769 150:198 151:835 152:638 153:135 154:1259 155:913 156:931 157:418 158:576 159:727 160:911 161:640 162:1031 163:450 164:741 165:672 166:811 167:701 168:1522 169:167 170:1790 171:101 172:1315 173:812 174:365 175:89 176:488 177:911 178:597 179:872 180:43 181:2295 182:21 183:1158 184:454 185:3549 186:2965 187:1585 188:807 189:1934 190:6095 191:559 192:5227 193:1839 194:1199 195:913 196:950 197:1140 198:2753 199:5146 200:4531 201:3691 202:987 203:704 204:2206 205:1810 206:1599 207:1620 208:1588 209:1957 210:347 211:480 212:951 213:775 214:953 215:39 216:2607 217:476 218:589 219:19 220:44 221:472 222:24 223:1246 End of report