IPv4 R&E Routing Table Report 20:15 GMT Mon 25 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: 280525 Prefixes after maximum aggregation (per Origin AS): 120348 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143127 Number of IPv4 prefixes with a valid ROA: 131852 Number of IPv4 prefixes with an invalid ROA: 43 Number of IPv4 prefixes with no ROA: 148630 Total ASes present in the Internet Routing Table: 20817 Prefixes per ASN: 13.48 Origin-only ASes present in the Internet Routing Table: 17921 Origin ASes announcing only one prefix: 7979 Transit ASes present in the Internet Routing Table: 2896 Transit-only ASes present in the Internet Routing Table: 711 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: 346 Number of instances of unregistered ASNs: 375 Number of 32-bit ASNs allocated by the RIRs: 47270 Number of 32-bit ASNs visible in the Routing Table: 8293 Prefixes from 32-bit ASNs in the Routing Table: 34028 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: 101 Number of addresses announced to Internet: 1628353029 Equivalent to 97 /8s, 14 /16s and 178 /24s Percentage of available address space announced: 44.0 Percentage of allocated address space announced: 44.0 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: 89422 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36220 Total APNIC prefixes after maximum aggregation: 7473 APNIC Deaggregation factor: 4.85 Prefixes being announced from the APNIC address blocks: 35042 Unique aggregates announced from the APNIC address blocks: 7530 APNIC Region origin ASes present in the Internet Routing Table: 1199 APNIC Prefixes per ASN: 29.23 APNIC Region origin ASes announcing only one prefix: 471 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: 559 Number of APNIC addresses announced to Internet: 163565676 Equivalent to 9 /8s, 191 /16s and 208 /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: 126443 Total ARIN prefixes after maximum aggregation: 66636 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124936 Unique aggregates announced from the ARIN address blocks: 68511 ARIN Region origin ASes present in the Internet Routing Table: 9270 ARIN Prefixes per ASN: 13.48 ARIN Region origin ASes announcing only one prefix: 3855 ARIN Region transit ASes present in the Internet Routing Table: 873 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: 2179 Number of ARIN addresses announced to Internet: 1023512073 Equivalent to 61 /8s, 1 /16s and 142 /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: 49617 Total RIPE prefixes after maximum aggregation: 26915 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 51785 Unique aggregates announced from the RIPE address blocks: 37939 RIPE Region origin ASes present in the Internet Routing Table: 4731 RIPE Prefixes per ASN: 10.95 RIPE Region origin ASes announcing only one prefix: 1981 RIPE Region transit ASes present in the Internet Routing Table: 718 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 25 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1986 Number of RIPE addresses announced to Internet: 283979344 Equivalent to 16 /8s, 237 /16s and 46 /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: 56579 Total LACNIC prefixes after maximum aggregation: 16599 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54694 Unique aggregates announced from the LACNIC address blocks: 24683 LACNIC Region origin ASes present in the Internet Routing Table: 4451 LACNIC Prefixes per ASN: 12.29 LACNIC Region origin ASes announcing only one prefix: 1552 LACNIC Region transit ASes present in the Internet Routing Table: 890 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: 3390 Number of LACNIC addresses announced to Internet: 108498240 Equivalent to 6 /8s, 119 /16s and 141 /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: 11320 Total AfriNIC prefixes after maximum aggregation: 2465 AfriNIC Deaggregation factor: 4.59 Prefixes being announced from the AfriNIC address blocks: 13967 Unique aggregates announced from the AfriNIC address blocks: 4368 AfriNIC Region origin ASes present in the Internet Routing Table: 318 AfriNIC Prefixes per ASN: 43.92 AfriNIC Region origin ASes announcing only one prefix: 120 AfriNIC Region transit ASes present in the Internet Routing Table: 87 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: 179 Number of AfriNIC addresses announced to Internet: 48685312 Equivalent to 2 /8s, 230 /16s and 225 /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 610 2169 463 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 13964 40849 5381 AMAZON-02, US 22773 3328 3009 156 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2955 230 1744 USDA-1, US 36352 2514 207 1165 AS-COLOCROSSING, US 367 2413 2850 1121 DNIC-ASBLK-00306-00371, US 6167 1948 4050 520 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1650 4885 269 CENTURYLINK-US-LEGACY-QWEST, US 7018 1514 22796 1144 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 1195 93 978 AKAMAI-ASN1, NL 3215 923 4895 286 France Telecom - Orange, FR 25019 805 1301 130 SAUDINETSTC-AS, SA 212238 665 48 593 CDNEXT, GB 34984 643 95 500 TELLCOM-AS, TR 8376 594 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 7196 1952 790 UNINET, MX 11830 1988 369 64 Instituto Costarricense de Electricidad y 10620 1658 239 1205 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1180 371 22 Telefonica del Peru S.A.A., PE 26615 1017 2487 55 TIM SA, BR 18881 892 1127 31 TELEFONICA BRASIL S.A, BR 11664 802 278 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 1269 572 23 RAYA-AS, EG 29571 1152 93 56 ORANGE-COTE-IVOIRE, CI 37069 955 1096 13 MOBINIL, EG 24863 813 389 23 LINKdotNET-AS, EG 36935 597 518 28 Vodafone-, EG 20011 576 154 212 INTERNET-SOLUTIONS, ZA 36914 566 82 3 KENET-AS, KE 36903 563 246 362 MT-MPLS, MA 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 13964 40849 5381 AMAZON-02, US 9808 12736 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7196 1952 790 UNINET, MX 22773 3328 3009 156 ASN-CXA-ALL-CCI-22773-RDC, US 749 3221 54766 2472 DNIC-AS-00749, US 4155 2955 230 1744 USDA-1, US 56046 2910 811 190 CMNET-JIANGSU-AP China Mobile communicati 36352 2514 207 1165 AS-COLOCROSSING, US 367 2413 2850 1121 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 7196 6406 UNINET, MX 22773 3328 3172 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 23.174.40.0/24 Origin: 27317 RESERVED, ZZ 23.174.40.0/24 Transit: 21738 ROZINT, US 41.57.124.0/24 Origin: 37442 RESERVED, ZZ 41.57.124.0/24 Transit: 37204 TELONE, ZW 41.57.127.0/24 Origin: 37442 RESERVED, ZZ 41.57.127.0/24 Transit: 37204 TELONE, ZW 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 /12:158 /13:223 /14:590 /15:1117 /16:7652 /17:3477 /18:4120 /19:7587 /20:13318 /21:15855 /22:28287 /23:29416 /24:168375 /25:67 /26:83 /27:52 /28:18 /29:8 /30:9 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3873 7196 UNINET, MX 22773 2491 3328 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2369 13964 AMAZON-02, US 11830 1692 1988 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1034 1385 BRIGHTSPEED, US 36352 1004 2514 AS-COLOCROSSING, US 10620 969 1658 Telmex Colombia S.A., CO 209 960 1650 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 3:916 4:5 5:860 6:143 7:5 8:648 9:3 11:171 12:884 13:427 14:121 15:329 16:247 17:3 18:894 20:191 21:4 22:188 23:2650 24:664 27:22 29:19 31:508 32:12 34:10 35:174 36:3079 37:835 38:2637 39:634 40:90 41:1103 42:282 43:205 44:30 45:4363 46:1029 47:113 49:25 50:481 51:380 52:1384 54:335 55:1111 56:11 57:25 58:44 59:30 60:32 61:61 62:554 63:790 64:1954 65:1103 66:1595 67:1083 68:370 69:1233 70:447 71:186 72:691 74:962 75:322 76:249 77:443 78:363 79:243 80:315 81:386 82:717 83:216 84:327 85:466 86:260 87:220 88:303 89:718 90:109 91:995 92:692 93:459 94:961 95:655 96:272 97:54 98:496 99:205 100:40 101:20 102:449 103:1221 104:1665 105:210 106:54 107:1548 108:534 109:401 110:52 111:2250 112:878 113:74 114:53 115:20 116:45 117:1217 118:68 119:65 120:1504 121:45 122:62 123:130 124:65 125:25 126:1 128:543 129:397 130:665 131:1018 132:550 133:221 134:508 135:121 136:679 137:515 138:1055 139:449 140:691 141:378 142:988 143:852 144:414 145:138 146:634 147:485 148:986 149:770 150:197 151:834 152:628 153:180 154:980 155:918 156:934 157:416 158:578 159:728 160:920 161:689 162:1024 163:455 164:754 165:688 166:819 167:702 168:1565 169:163 170:1837 171:102 172:1339 173:826 174:367 175:85 176:508 177:986 178:597 179:916 180:42 181:2326 182:29 183:1165 184:451 185:3565 186:3108 187:1610 188:825 189:1876 190:6072 191:553 192:5237 193:1857 194:1226 195:970 196:915 197:1143 198:2745 199:5166 200:4520 201:3664 202:971 203:723 204:2212 205:1828 206:1593 207:1617 208:1578 209:1990 210:344 211:478 212:943 213:777 214:956 215:39 216:2578 217:473 218:593 219:19 220:32 221:452 222:24 223:1265 End of report