IPv4 R&E Routing Table Report 20:15 GMT Sat 02 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: 280109 Prefixes after maximum aggregation (per Origin AS): 120272 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143224 Number of IPv4 prefixes with a valid ROA: 130520 Number of IPv4 prefixes with an invalid ROA: 220 Number of IPv4 prefixes with no ROA: 149369 Total ASes present in the Internet Routing Table: 20673 Prefixes per ASN: 13.55 Origin-only ASes present in the Internet Routing Table: 17791 Origin ASes announcing only one prefix: 7952 Transit ASes present in the Internet Routing Table: 2882 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: 47037 Number of 32-bit ASNs visible in the Routing Table: 8176 Prefixes from 32-bit ASNs in the Routing Table: 33327 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: 1644712965 Equivalent to 98 /8s, 8 /16s and 84 /24s Percentage of available address space announced: 44.4 Percentage of allocated address space announced: 44.4 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: 89495 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35398 Total APNIC prefixes after maximum aggregation: 7511 APNIC Deaggregation factor: 4.71 Prefixes being announced from the APNIC address blocks: 34405 Unique aggregates announced from the APNIC address blocks: 7886 APNIC Region origin ASes present in the Internet Routing Table: 1191 APNIC Prefixes per ASN: 28.89 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: 7.4 Max APNIC Region AS path length visible: 31 Number of APNIC region 32-bit ASNs visible in the Routing Table: 554 Number of APNIC addresses announced to Internet: 173874796 Equivalent to 10 /8s, 93 /16s and 30 /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: 126272 Total ARIN prefixes after maximum aggregation: 66463 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124655 Unique aggregates announced from the ARIN address blocks: 68146 ARIN Region origin ASes present in the Internet Routing Table: 9291 ARIN Prefixes per ASN: 13.42 ARIN Region origin ASes announcing only one prefix: 3861 ARIN Region transit ASes present in the Internet Routing Table: 882 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: 2177 Number of ARIN addresses announced to Internet: 1027997705 Equivalent to 61 /8s, 70 /16s and 0 /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: 50504 Total RIPE prefixes after maximum aggregation: 27276 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52007 Unique aggregates announced from the RIPE address blocks: 38051 RIPE Region origin ASes present in the Internet Routing Table: 4672 RIPE Prefixes per ASN: 11.13 RIPE Region origin ASes announcing only one prefix: 1957 RIPE Region transit ASes present in the Internet Routing Table: 702 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: 1926 Number of RIPE addresses announced to Internet: 287309136 Equivalent to 17 /8s, 31 /16s and 253 /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: 56393 Total LACNIC prefixes after maximum aggregation: 16410 LACNIC Deaggregation factor: 3.44 Prefixes being announced from the LACNIC address blocks: 54684 Unique aggregates announced from the LACNIC address blocks: 24551 LACNIC Region origin ASes present in the Internet Routing Table: 4399 LACNIC Prefixes per ASN: 12.43 LACNIC Region origin ASes announcing only one prefix: 1567 LACNIC Region transit ASes present in the Internet Routing Table: 893 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: 3384 Number of LACNIC addresses announced to Internet: 109014848 Equivalent to 6 /8s, 127 /16s and 111 /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: 11207 Total AfriNIC prefixes after maximum aggregation: 2361 AfriNIC Deaggregation factor: 4.75 Prefixes being announced from the AfriNIC address blocks: 14266 Unique aggregates announced from the AfriNIC address blocks: 4500 AfriNIC Region origin ASes present in the Internet Routing Table: 275 AfriNIC Prefixes per ASN: 51.88 AfriNIC Region origin ASes announcing only one prefix: 97 AfriNIC Region transit ASes present in the Internet Routing Table: 78 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: 135 Number of AfriNIC addresses announced to Internet: 46406656 Equivalent to 2 /8s, 196 /16s and 28 /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 12191 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2827 811 189 CMNET-JIANGSU-AP China Mobile communicati 56047 1660 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 612 2169 462 SINET-AS Research Organization of Informa 132525 550 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 45102 539 894 141 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 13698 41056 5281 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 1732 USDA-1, US 36352 2559 210 1141 AS-COLOCROSSING, US 367 2436 2963 1134 DNIC-ASBLK-00306-00371, US 6167 1942 4030 519 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 209 1648 4888 263 CENTURYLINK-US-LEGACY-QWEST, US 7018 1602 22828 1200 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 1192 93 970 AKAMAI-ASN1, NL 3257 1051 2083 815 GTT-BACKBONE GTT, US 34984 940 118 606 TELLCOM-AS, TR 3215 888 4818 292 France Telecom - Orange, FR 8452 829 1841 16 TE-AS TE-AS, EG 25019 802 1301 130 SAUDINETSTC-AS, SA 212238 657 46 581 CDNEXT, GB 8376 570 52 24 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 7431 2010 885 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1690 242 1218 Telmex Colombia S.A., CO 3816 1351 788 208 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1161 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 1425 572 23 RAYA-AS, EG 29571 1155 99 104 ORANGE-COTE-IVOIRE, CI 37069 961 1112 11 MOBINIL, EG 24863 916 388 20 LINKdotNET-AS, EG 36935 576 518 29 Vodafone-, EG 36914 574 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 13698 41056 5281 AMAZON-02, US 9808 12191 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7431 2010 885 UNINET, MX 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2892 219 1732 USDA-1, US 56046 2827 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2559 210 1141 AS-COLOCROSSING, US 367 2436 2963 1134 DNIC-ASBLK-00306-00371, US 11830 1987 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 12191 12076 CHINAMOBILE-CN China Mobile Communications Grou 8151 7431 6546 UNINET, MX 22773 3337 3174 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2827 2638 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1902 1687 ATLANTICBB-JOHNSTOWN, US 56047 1660 1610 CMNET-HUNAN-AP China Mobile communications corp 56041 1643 1565 CMNET-ZHEJIANG-AP China Mobile communications c 6167 1942 1423 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 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 /8:14 /9:11 /10:31 /11:51 /12:159 /13:216 /14:591 /15:1120 /16:7767 /17:3489 /18:4264 /19:7808 /20:13309 /21:16019 /22:28596 /23:29345 /24:167066 /25:67 /26:85 /27:52 /28:18 /29:13 /30:12 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3986 7431 UNINET, MX 22773 2492 3337 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2364 13698 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1028 1356 BRSPD-PUBLIC, US 36352 1017 2559 AS-COLOCROSSING, US 10620 996 1690 Telmex Colombia S.A., CO 209 962 1648 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 2:452 3:859 4:5 5:815 6:145 7:5 8:656 11:171 12:954 13:400 14:112 15:311 16:247 17:3 18:892 20:191 21:4 22:188 23:2638 24:681 27:28 29:19 31:476 32:18 33:1 34:10 35:175 36:2836 37:747 38:2612 39:592 40:83 41:1104 42:21 43:223 44:27 45:4226 46:1004 47:111 49:25 50:475 51:385 52:1383 54:319 55:1093 56:11 57:23 58:17 59:32 60:31 61:60 62:516 63:788 64:1925 65:1114 66:1618 67:1086 68:370 69:1270 70:454 71:190 72:692 74:964 75:319 76:261 77:479 78:359 79:241 80:309 81:376 82:758 83:238 84:335 85:484 86:246 87:205 88:302 89:662 90:108 91:997 92:701 93:471 94:992 95:643 96:259 97:53 98:499 99:191 100:40 101:30 102:408 103:1275 104:1687 105:186 106:40 107:1553 108:532 109:438 110:48 111:2104 112:751 113:39 114:54 115:31 116:52 117:1162 118:84 119:84 120:1474 121:50 122:60 123:138 124:64 125:25 126:1 128:535 129:401 130:672 131:1033 132:575 133:212 134:470 135:127 136:674 137:524 138:1030 139:451 140:732 141:377 142:1029 143:826 144:433 145:155 146:658 147:509 148:1034 149:729 150:208 151:813 152:607 153:131 154:1204 155:905 156:953 157:410 158:574 159:724 160:860 161:690 162:1053 163:443 164:682 165:651 166:815 167:693 168:1573 169:161 170:1793 171:103 172:1331 173:844 174:359 175:87 176:818 177:1054 178:609 179:845 180:42 181:2268 182:30 183:1112 184:456 185:3435 186:2997 187:1643 188:832 189:1990 190:6023 191:550 192:5270 193:1833 194:1200 195:944 196:717 197:1185 198:2760 199:5072 200:4603 201:3802 202:991 203:697 204:2229 205:1815 206:1582 207:1610 208:1517 209:1968 210:355 211:471 212:943 213:787 214:942 215:37 216:2628 217:470 218:564 219:18 220:32 221:469 222:24 223:1165 End of report