IPv4 R&E Routing Table Report 20:15 GMT Thu 21 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: 280636 Prefixes after maximum aggregation (per Origin AS): 120624 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143817 Number of IPv4 prefixes with a valid ROA: 132164 Number of IPv4 prefixes with an invalid ROA: 41 Number of IPv4 prefixes with no ROA: 148431 Total ASes present in the Internet Routing Table: 20848 Prefixes per ASN: 13.46 Origin-only ASes present in the Internet Routing Table: 17954 Origin ASes announcing only one prefix: 8010 Transit ASes present in the Internet Routing Table: 2894 Transit-only ASes present in the Internet Routing Table: 708 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: 347 Number of instances of unregistered ASNs: 376 Number of 32-bit ASNs allocated by the RIRs: 47236 Number of 32-bit ASNs visible in the Routing Table: 8335 Prefixes from 32-bit ASNs in the Routing Table: 34023 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: 110 Number of addresses announced to Internet: 1638919941 Equivalent to 97 /8s, 175 /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: 89638 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36192 Total APNIC prefixes after maximum aggregation: 7477 APNIC Deaggregation factor: 4.84 Prefixes being announced from the APNIC address blocks: 35082 Unique aggregates announced from the APNIC address blocks: 7715 APNIC Region origin ASes present in the Internet Routing Table: 1202 APNIC Prefixes per ASN: 29.19 APNIC Region origin ASes announcing only one prefix: 474 APNIC Region transit ASes present in the Internet Routing Table: 188 Average APNIC Region AS path length visible: 7.5 Max APNIC Region AS path length visible: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 563 Number of APNIC addresses announced to Internet: 173789804 Equivalent to 10 /8s, 91 /16s and 210 /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: 126462 Total ARIN prefixes after maximum aggregation: 66661 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124879 Unique aggregates announced from the ARIN address blocks: 68562 ARIN Region origin ASes present in the Internet Routing Table: 9270 ARIN Prefixes per ASN: 13.47 ARIN Region origin ASes announcing only one prefix: 3857 ARIN Region transit ASes present in the Internet Routing Table: 872 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 26 Number of ARIN region 32-bit ASNs visible in the Routing Table: 2174 Number of ARIN addresses announced to Internet: 1023606025 Equivalent to 61 /8s, 2 /16s and 253 /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: 49588 Total RIPE prefixes after maximum aggregation: 26993 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51697 Unique aggregates announced from the RIPE address blocks: 38006 RIPE Region origin ASes present in the Internet Routing Table: 4718 RIPE Prefixes per ASN: 10.96 RIPE Region origin ASes announcing only one prefix: 1971 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: 1984 Number of RIPE addresses announced to Internet: 283859792 Equivalent to 16 /8s, 235 /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: 56974 Total LACNIC prefixes after maximum aggregation: 16780 LACNIC Deaggregation factor: 3.40 Prefixes being announced from the LACNIC address blocks: 55150 Unique aggregates announced from the LACNIC address blocks: 25074 LACNIC Region origin ASes present in the Internet Routing Table: 4492 LACNIC Prefixes per ASN: 12.28 LACNIC Region origin ASes announcing only one prefix: 1585 LACNIC Region transit ASes present in the Internet Routing Table: 903 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: 3434 Number of LACNIC addresses announced to Internet: 108904000 Equivalent to 6 /8s, 125 /16s and 190 /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: 11073 Total AfriNIC prefixes after maximum aggregation: 2451 AfriNIC Deaggregation factor: 4.52 Prefixes being announced from the AfriNIC address blocks: 13718 Unique aggregates announced from the AfriNIC address blocks: 4356 AfriNIC Region origin ASes present in the Internet Routing Table: 322 AfriNIC Prefixes per ASN: 42.60 AfriNIC Region origin ASes announcing only one prefix: 123 AfriNIC Region transit ASes present in the Internet Routing Table: 82 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: 180 Number of AfriNIC addresses announced to Internet: 48645120 Equivalent to 2 /8s, 230 /16s and 68 /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 12706 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 56047 1689 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1673 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 610 2169 463 SINET-AS Research Organization of Informa 132525 592 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 541 894 138 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 13974 40848 5377 AMAZON-02, US 22773 3319 3010 157 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2949 230 1747 USDA-1, US 36352 2520 207 1159 AS-COLOCROSSING, US 367 2413 2849 1119 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1651 4885 270 CENTURYLINK-US-LEGACY-QWEST, US 7018 1519 22797 1149 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 1208 95 988 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 651 46 579 CDNEXT, GB 34984 644 96 501 TELLCOM-AS, TR 8376 604 53 26 Jordan Data Communications, JO 8452 574 1841 16 TE-AS TE-AS, EG 51167 564 113 248 CONTABO, DE 35819 538 543 58 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 7342 1991 810 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1657 239 1204 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 1018 2487 55 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 11664 807 278 29 Techtel LMDS Comunicaciones Interactivas 27651 651 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 1265 572 23 RAYA-AS, EG 29571 1152 93 56 ORANGE-COTE-IVOIRE, CI 24863 954 389 23 LINKdotNET-AS, EG 37069 644 1096 13 MOBINIL, EG 36914 579 82 3 KENET-AS, KE 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36903 563 246 362 MT-MPLS, MA 36935 558 521 40 Vodafone-, EG 36992 434 1038 211 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 13974 40848 5377 AMAZON-02, US 9808 12706 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7342 1991 810 UNINET, MX 22773 3319 3010 157 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2949 230 1747 USDA-1, US 56046 2907 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2520 207 1159 AS-COLOCROSSING, US 367 2413 2849 1119 DNIC-ASBLK-00306-00371, US 11830 1988 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 12706 12591 CHINAMOBILE-CN China Mobile Communications Grou 8151 7342 6532 UNINET, MX 22773 3319 3162 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2907 2717 CMNET-JIANGSU-AP China Mobile communications co 11830 1988 1924 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1689 1639 CMNET-HUNAN-AP China Mobile communications corp 56041 1673 1595 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 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 21861 UNALLOCATED 12.37.59.0/24 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 /14:592 /15:1117 /16:7772 /17:3486 /18:4188 /19:7602 /20:13010 /21:15917 /22:28417 /23:29612 /24:168190 /25:67 /26:83 /27:51 /28:18 /29:9 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3952 7342 UNINET, MX 22773 2481 3319 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2386 13974 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1034 1381 BRIGHTSPEED, US 36352 1006 2520 AS-COLOCROSSING, US 10620 968 1657 Telmex Colombia S.A., CO 209 960 1651 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 2:469 3:914 4:5 5:874 6:145 7:5 8:650 9:2 11:171 12:883 13:423 14:114 15:323 16:247 17:3 18:892 20:163 21:4 22:188 23:2657 24:664 27:38 29:19 31:505 32:12 34:10 35:174 36:3073 37:807 38:2647 39:634 40:86 41:1097 42:176 43:205 44:30 45:4335 46:1006 47:114 49:25 50:481 51:384 52:1389 54:324 55:1099 56:11 57:25 58:44 59:31 60:31 61:53 62:541 63:783 64:1949 65:1098 66:1592 67:1084 68:363 69:1253 70:448 71:189 72:687 74:963 75:321 76:248 77:449 78:359 79:244 80:304 81:383 82:707 83:228 84:325 85:468 86:259 87:221 88:303 89:712 90:108 91:1001 92:688 93:465 94:969 95:662 96:269 97:54 98:497 99:203 100:40 101:24 102:429 103:1249 104:1677 105:217 106:40 107:1548 108:536 109:396 110:51 111:2281 112:858 113:44 114:53 115:20 116:50 117:1212 118:67 119:66 120:1495 121:50 122:61 123:130 124:65 125:25 126:1 128:537 129:398 130:676 131:1008 132:570 133:221 134:510 135:121 136:680 137:514 138:1064 139:449 140:692 141:379 142:989 143:851 144:428 145:136 146:648 147:484 148:1008 149:757 150:198 151:838 152:630 153:178 154:999 155:907 156:974 157:418 158:578 159:727 160:915 161:658 162:1033 163:448 164:744 165:671 166:811 167:699 168:1532 169:170 170:1834 171:102 172:1324 173:827 174:367 175:86 176:503 177:1059 178:599 179:917 180:44 181:2320 182:29 183:1163 184:444 185:3573 186:3127 187:1650 188:803 189:1924 190:6084 191:578 192:5223 193:1852 194:1202 195:967 196:919 197:1146 198:2745 199:5147 200:4557 201:3655 202:974 203:712 204:2203 205:1798 206:1591 207:1614 208:1579 209:1966 210:347 211:484 212:928 213:775 214:955 215:39 216:2578 217:471 218:593 219:19 220:32 221:472 222:24 223:1247 End of report