IPv4 R&E Routing Table Report 20:15 GMT Mon 04 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: 279825 Prefixes after maximum aggregation (per Origin AS): 120433 Deaggregation factor: 2.32 Unique aggregates announced (without unneeded subnets): 143307 Number of IPv4 prefixes with a valid ROA: 130403 Number of IPv4 prefixes with an invalid ROA: 209 Number of IPv4 prefixes with no ROA: 149213 Total ASes present in the Internet Routing Table: 20685 Prefixes per ASN: 13.53 Origin-only ASes present in the Internet Routing Table: 17794 Origin ASes announcing only one prefix: 7944 Transit ASes present in the Internet Routing Table: 2891 Transit-only ASes present in the Internet Routing Table: 718 Paths with bogon ASNs present in the IPv4 Routing Table: 13 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: 367 Number of 32-bit ASNs allocated by the RIRs: 47047 Number of 32-bit ASNs visible in the Routing Table: 8182 Prefixes from 32-bit ASNs in the Routing Table: 33364 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 92 Number of addresses announced to Internet: 1627657733 Equivalent to 97 /8s, 4 /16s and 22 /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: 89319 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35410 Total APNIC prefixes after maximum aggregation: 7543 APNIC Deaggregation factor: 4.69 Prefixes being announced from the APNIC address blocks: 34396 Unique aggregates announced from the APNIC address blocks: 7879 APNIC Region origin ASes present in the Internet Routing Table: 1203 APNIC Prefixes per ASN: 28.59 APNIC Region origin ASes announcing only one prefix: 474 APNIC Region transit ASes present in the Internet Routing Table: 190 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: 558 Number of APNIC addresses announced to Internet: 173886060 Equivalent to 10 /8s, 93 /16s and 74 /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: 126357 Total ARIN prefixes after maximum aggregation: 66495 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124799 Unique aggregates announced from the ARIN address blocks: 68202 ARIN Region origin ASes present in the Internet Routing Table: 9289 ARIN Prefixes per ASN: 13.44 ARIN Region origin ASes announcing only one prefix: 3854 ARIN Region transit ASes present in the Internet Routing Table: 885 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: 2172 Number of ARIN addresses announced to Internet: 1028108809 Equivalent to 61 /8s, 71 /16s and 178 /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: 50668 Total RIPE prefixes after maximum aggregation: 27396 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52145 Unique aggregates announced from the RIPE address blocks: 38192 RIPE Region origin ASes present in the Internet Routing Table: 4676 RIPE Prefixes per ASN: 11.15 RIPE Region origin ASes announcing only one prefix: 1954 RIPE Region transit ASes present in the Internet Routing Table: 706 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: 1933 Number of RIPE addresses announced to Internet: 270160720 Equivalent to 16 /8s, 26 /16s and 83 /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: 55888 Total LACNIC prefixes after maximum aggregation: 16409 LACNIC Deaggregation factor: 3.41 Prefixes being announced from the LACNIC address blocks: 54163 Unique aggregates announced from the LACNIC address blocks: 24506 LACNIC Region origin ASes present in the Internet Routing Table: 4394 LACNIC Prefixes per ASN: 12.33 LACNIC Region origin ASes announcing only one prefix: 1564 LACNIC Region transit ASes present in the Internet Routing Table: 895 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: 3379 Number of LACNIC addresses announced to Internet: 109018176 Equivalent to 6 /8s, 127 /16s and 124 /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: 11167 Total AfriNIC prefixes after maximum aggregation: 2339 AfriNIC Deaggregation factor: 4.77 Prefixes being announced from the AfriNIC address blocks: 14230 Unique aggregates announced from the AfriNIC address blocks: 4438 AfriNIC Region origin ASes present in the Internet Routing Table: 278 AfriNIC Prefixes per ASN: 51.19 AfriNIC Region origin ASes announcing only one prefix: 98 AfriNIC Region transit ASes present in the Internet Routing Table: 75 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: 140 Number of AfriNIC addresses announced to Internet: 46374144 Equivalent to 2 /8s, 195 /16s and 157 /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 12203 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2827 811 189 CMNET-JIANGSU-AP China Mobile communicati 56047 1661 192 50 CMNET-HUNAN-AP China Mobile communication 56041 1643 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 24547 866 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 777 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 132525 550 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 537 893 139 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 13697 41057 5279 AMAZON-02, US 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2892 219 1740 USDA-1, US 36352 2554 209 1141 AS-COLOCROSSING, US 367 2444 2964 1142 DNIC-ASBLK-00306-00371, US 6167 1942 4030 519 CELLCO-PART, US 11776 1901 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1599 22826 1197 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 95 988 AKAMAI-ASN1, NL 3257 1065 2083 815 GTT-BACKBONE GTT, US 34984 941 118 607 TELLCOM-AS, TR 3215 888 4818 292 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 25019 801 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 8376 582 53 23 Jordan Data Communications, JO 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 6963 1991 873 UNINET, MX 11830 1984 369 64 Instituto Costarricense de Electricidad y 10620 1691 242 1219 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1188 371 22 Telefonica del Peru S.A.A., PE 26615 1015 2487 55 TIM SA, BR 18881 885 1127 31 TELEFONICA BRASIL S.A, BR 11664 782 278 29 Techtel LMDS Comunicaciones Interactivas 11172 728 124 69 Alestra, S. de R.L. de C.V., MX 27651 651 92 46 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 1455 572 23 RAYA-AS, EG 29571 1155 99 104 ORANGE-COTE-IVOIRE, CI 24863 1006 388 20 LINKdotNET-AS, EG 37069 885 1112 11 MOBINIL, EG 36935 587 518 29 Vodafone-, EG 36914 576 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 509 1092 217 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 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 13697 41057 5279 AMAZON-02, US 9808 12203 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 6963 1991 873 UNINET, MX 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2892 219 1740 USDA-1, US 56046 2827 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2554 209 1141 AS-COLOCROSSING, US 367 2444 2964 1142 DNIC-ASBLK-00306-00371, US 11830 1984 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 12203 12088 CHINAMOBILE-CN China Mobile Communications Grou 8151 6963 6090 UNINET, MX 22773 3337 3174 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2827 2638 CMNET-JIANGSU-AP China Mobile communications co 11830 1984 1920 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1686 ATLANTICBB-JOHNSTOWN, US 56047 1661 1611 CMNET-HUNAN-AP China Mobile communications corp 56041 1643 1565 CMNET-ZHEJIANG-AP China Mobile communications c 24835 1455 1432 RAYA-AS, EG 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 /8:13 /9:11 /10:31 /11:51 /12:159 /13:216 /14:591 /15:1119 /16:7771 /17:3485 /18:4270 /19:7753 /20:13255 /21:15892 /22:28610 /23:29251 /24:167096 /25:67 /26:85 /27:52 /28:18 /29:12 /30:11 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3737 6963 UNINET, MX 22773 2492 3337 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2364 13697 AMAZON-02, US 11830 1688 1984 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1030 1362 BRSPD-PUBLIC, US 36352 1014 2554 AS-COLOCROSSING, US 10620 997 1691 Telmex Colombia S.A., CO 209 962 1648 CENTURYLINK-US-LEGACY-QWEST, US 11776 882 1901 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 2:461 3:859 4:5 5:808 6:144 7:5 8:655 9:1 11:171 12:955 13:400 14:112 15:311 16:247 17:3 18:891 20:191 21:4 22:188 23:2641 24:680 27:28 29:19 31:487 32:18 33:1 34:10 35:175 36:2837 37:777 38:2614 39:592 40:83 41:1091 42:21 43:223 44:27 45:4214 46:1003 47:111 49:25 50:476 51:385 52:1383 54:319 55:1103 56:11 57:24 58:17 59:32 60:31 61:61 62:517 63:786 64:1926 65:1107 66:1617 67:1086 68:369 69:1261 70:454 71:189 72:689 74:967 75:319 76:261 77:474 78:353 79:243 80:309 81:375 82:755 83:238 84:339 85:484 86:247 87:203 88:305 89:704 90:108 91:1000 92:697 93:481 94:1003 95:668 96:260 97:53 98:500 99:191 100:40 101:30 102:384 103:1286 104:1682 105:186 106:40 107:1552 108:532 109:441 110:48 111:2104 112:751 113:39 114:55 115:23 116:52 117:1162 118:84 119:83 120:1474 121:42 122:60 123:138 124:65 125:25 126:1 128:529 129:401 130:673 131:1024 132:564 133:212 134:470 135:127 136:675 137:522 138:1020 139:450 140:734 141:378 142:1030 143:826 144:427 145:155 146:658 147:508 148:1005 149:732 150:210 151:818 152:633 153:131 154:1214 155:904 156:955 157:413 158:574 159:735 160:854 161:690 162:1055 163:443 164:736 165:658 166:815 167:694 168:1560 169:163 170:1791 171:103 172:1332 173:843 174:359 175:90 176:819 177:1062 178:615 179:841 180:42 181:2270 182:30 183:1113 184:458 185:3497 186:2987 187:1495 188:834 189:1933 190:6028 191:553 192:5272 193:1837 194:1205 195:943 196:721 197:1186 198:2763 199:5074 200:4644 201:3810 202:993 203:698 204:2238 205:1789 206:1585 207:1615 208:1518 209:1976 210:355 211:469 212:931 213:793 214:943 215:37 216:2627 217:457 218:564 219:18 220:32 221:469 222:24 223:1165 End of report