IPv4 R&E Routing Table Report 20:15 GMT Sat 23 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: 280938 Prefixes after maximum aggregation (per Origin AS): 120635 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143793 Number of IPv4 prefixes with a valid ROA: 131967 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 148928 Total ASes present in the Internet Routing Table: 20828 Prefixes per ASN: 13.49 Origin-only ASes present in the Internet Routing Table: 17923 Origin ASes announcing only one prefix: 7980 Transit ASes present in the Internet Routing Table: 2905 Transit-only ASes present in the Internet Routing Table: 713 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: 342 Number of instances of unregistered ASNs: 371 Number of 32-bit ASNs allocated by the RIRs: 47254 Number of 32-bit ASNs visible in the Routing Table: 8293 Prefixes from 32-bit ASNs in the Routing Table: 34083 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: 108 Number of addresses announced to Internet: 1639685893 Equivalent to 97 /8s, 187 /16s and 159 /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: 89523 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36542 Total APNIC prefixes after maximum aggregation: 7579 APNIC Deaggregation factor: 4.82 Prefixes being announced from the APNIC address blocks: 35355 Unique aggregates announced from the APNIC address blocks: 7820 APNIC Region origin ASes present in the Internet Routing Table: 1201 APNIC Prefixes per ASN: 29.44 APNIC Region origin ASes announcing only one prefix: 470 APNIC Region transit ASes present in the Internet Routing Table: 189 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: 561 Number of APNIC addresses announced to Internet: 173820780 Equivalent to 10 /8s, 92 /16s and 75 /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: 126662 Total ARIN prefixes after maximum aggregation: 66715 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125072 Unique aggregates announced from the ARIN address blocks: 68627 ARIN Region origin ASes present in the Internet Routing Table: 9270 ARIN Prefixes per ASN: 13.49 ARIN Region origin ASes announcing only one prefix: 3846 ARIN Region transit ASes present in the Internet Routing Table: 875 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: 2180 Number of ARIN addresses announced to Internet: 1024882441 Equivalent to 61 /8s, 22 /16s and 119 /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: 49616 Total RIPE prefixes after maximum aggregation: 26982 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51762 Unique aggregates announced from the RIPE address blocks: 38011 RIPE Region origin ASes present in the Internet Routing Table: 4734 RIPE Prefixes per ASN: 10.93 RIPE Region origin ASes announcing only one prefix: 1983 RIPE Region transit ASes present in the Internet Routing Table: 719 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: 1982 Number of RIPE addresses announced to Internet: 283610960 Equivalent to 16 /8s, 231 /16s and 143 /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: 56672 Total LACNIC prefixes after maximum aggregation: 16636 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54809 Unique aggregates announced from the LACNIC address blocks: 24798 LACNIC Region origin ASes present in the Internet Routing Table: 4457 LACNIC Prefixes per ASN: 12.30 LACNIC Region origin ASes announcing only one prefix: 1560 LACNIC Region transit ASes present in the Internet Routing Table: 897 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: 3392 Number of LACNIC addresses announced to Internet: 108633408 Equivalent to 6 /8s, 121 /16s and 157 /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: 11104 Total AfriNIC prefixes after maximum aggregation: 2465 AfriNIC Deaggregation factor: 4.50 Prefixes being announced from the AfriNIC address blocks: 13832 Unique aggregates announced from the AfriNIC address blocks: 4434 AfriNIC Region origin ASes present in the Internet Routing Table: 318 AfriNIC Prefixes per ASN: 43.50 AfriNIC Region origin ASes announcing only one prefix: 121 AfriNIC Region transit ASes present in the Internet Routing Table: 85 Average AfriNIC Region AS path length visible: 6.7 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 178 Number of AfriNIC addresses announced to Internet: 48624128 Equivalent to 2 /8s, 229 /16s and 242 /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 12736 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2910 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 827 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 606 2168 461 SINET-AS Research Organization of Informa 132525 586 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 542 894 139 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 13977 40850 5378 AMAZON-02, US 22773 3329 3013 156 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2939 229 1739 USDA-1, US 36352 2521 207 1160 AS-COLOCROSSING, US 367 2399 2848 1108 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 1516 22796 1146 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 1205 94 987 AKAMAI-ASN1, NL 3215 890 4819 294 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 665 48 593 CDNEXT, GB 34984 644 96 501 TELLCOM-AS, TR 8376 600 53 26 Jordan Data Communications, JO 35819 578 576 71 MOBILY-AS Etihad Etisalat Company Mobily, 8452 574 1841 16 TE-AS TE-AS, EG 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 7191 1950 789 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 1177 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 982 389 23 LINKdotNET-AS, EG 37069 644 1096 13 MOBINIL, EG 36935 617 521 40 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36903 563 246 362 MT-MPLS, MA 36914 490 82 3 KENET-AS, KE 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 13977 40850 5378 AMAZON-02, US 9808 12736 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7191 1950 789 UNINET, MX 22773 3329 3013 156 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2939 229 1739 USDA-1, US 56046 2910 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2521 207 1160 AS-COLOCROSSING, US 367 2399 2848 1108 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 12736 12621 CHINAMOBILE-CN China Mobile Communications Grou 8151 7191 6402 UNINET, MX 22773 3329 3173 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2910 2720 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 /15:1115 /16:7793 /17:3488 /18:4186 /19:7597 /20:12991 /21:15892 /22:28496 /23:29524 /24:168530 /25:67 /26:83 /27:52 /28:18 /29:9 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3869 7191 UNINET, MX 22773 2492 3329 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2381 13977 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1037 1387 BRIGHTSPEED, US 36352 1006 2521 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) ---------------------------------------------- 1:44 2:462 3:918 4:5 5:869 6:145 7:5 8:648 9:2 11:171 12:885 13:424 14:121 15:325 16:247 17:3 18:893 20:191 21:4 22:188 23:2657 24:663 27:38 29:19 31:500 32:12 34:10 35:174 36:3076 37:848 38:2669 39:634 40:89 41:1029 42:282 43:205 44:32 45:4357 46:1034 47:113 49:25 50:481 51:384 52:1389 54:332 55:1112 56:11 57:25 58:44 59:30 60:32 61:53 62:553 63:784 64:1960 65:1104 66:1594 67:1084 68:369 69:1249 70:448 71:189 72:695 74:968 75:322 76:249 77:454 78:361 79:244 80:304 81:385 82:714 83:227 84:325 85:464 86:261 87:223 88:303 89:719 90:108 91:995 92:694 93:462 94:966 95:656 96:266 97:55 98:496 99:204 100:40 101:20 102:440 103:1226 104:1676 105:217 106:54 107:1548 108:535 109:400 110:56 111:2276 112:877 113:73 114:53 115:20 116:49 117:1217 118:68 119:65 120:1504 121:45 122:63 123:130 124:65 125:25 126:1 128:542 129:397 130:669 131:1015 132:550 133:221 134:511 135:121 136:681 137:515 138:1051 139:449 140:693 141:378 142:989 143:843 144:419 145:138 146:650 147:485 148:991 149:779 150:197 151:832 152:629 153:178 154:1013 155:908 156:994 157:417 158:578 159:727 160:911 161:669 162:1021 163:450 164:752 165:683 166:817 167:702 168:1552 169:170 170:1833 171:102 172:1318 173:825 174:367 175:86 176:507 177:1025 178:597 179:917 180:42 181:2308 182:29 183:1165 184:454 185:3577 186:3114 187:1599 188:818 189:1896 190:6069 191:570 192:5227 193:1855 194:1208 195:979 196:917 197:1149 198:2746 199:5148 200:4543 201:3657 202:971 203:728 204:2207 205:1816 206:1590 207:1621 208:1588 209:1971 210:344 211:485 212:938 213:778 214:952 215:39 216:2585 217:469 218:593 219:19 220:32 221:472 222:24 223:1268 End of report