IPv4 R&E Routing Table Report 20:15 GMT Tue 05 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: 280436 Prefixes after maximum aggregation (per Origin AS): 120235 Deaggregation factor: 2.33 Unique aggregates announced (without unneeded subnets): 143272 Number of IPv4 prefixes with a valid ROA: 130789 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 149605 Total ASes present in the Internet Routing Table: 20617 Prefixes per ASN: 13.60 Origin-only ASes present in the Internet Routing Table: 17736 Origin ASes announcing only one prefix: 7890 Transit ASes present in the Internet Routing Table: 2881 Transit-only ASes present in the Internet Routing Table: 723 Paths with bogon ASNs present in the IPv4 Routing Table: 10 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: 366 Number of instances of unregistered ASNs: 395 Number of 32-bit ASNs allocated by the RIRs: 47054 Number of 32-bit ASNs visible in the Routing Table: 8114 Prefixes from 32-bit ASNs in the Routing Table: 33211 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: 120 Number of addresses announced to Internet: 1623348997 Equivalent to 96 /8s, 194 /16s and 87 /24s Percentage of available address space announced: 43.8 Percentage of allocated address space announced: 43.8 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: 89462 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 35747 Total APNIC prefixes after maximum aggregation: 7582 APNIC Deaggregation factor: 4.71 Prefixes being announced from the APNIC address blocks: 34725 Unique aggregates announced from the APNIC address blocks: 7966 APNIC Region origin ASes present in the Internet Routing Table: 1205 APNIC Prefixes per ASN: 28.82 APNIC Region origin ASes announcing only one prefix: 473 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: 28 Number of APNIC region 32-bit ASNs visible in the Routing Table: 558 Number of APNIC addresses announced to Internet: 174347884 Equivalent to 10 /8s, 100 /16s and 86 /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: 126125 Total ARIN prefixes after maximum aggregation: 66324 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 124608 Unique aggregates announced from the ARIN address blocks: 68084 ARIN Region origin ASes present in the Internet Routing Table: 9289 ARIN Prefixes per ASN: 13.41 ARIN Region origin ASes announcing only one prefix: 3844 ARIN Region transit ASes present in the Internet Routing Table: 889 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: 2175 Number of ARIN addresses announced to Internet: 1027867145 Equivalent to 61 /8s, 68 /16s and 2 /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: 50783 Total RIPE prefixes after maximum aggregation: 27418 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 52254 Unique aggregates announced from the RIPE address blocks: 38289 RIPE Region origin ASes present in the Internet Routing Table: 4682 RIPE Prefixes per ASN: 11.16 RIPE Region origin ASes announcing only one prefix: 1957 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: 1934 Number of RIPE addresses announced to Internet: 265761360 Equivalent to 15 /8s, 215 /16s and 50 /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: 56241 Total LACNIC prefixes after maximum aggregation: 16312 LACNIC Deaggregation factor: 3.45 Prefixes being announced from the LACNIC address blocks: 54529 Unique aggregates announced from the LACNIC address blocks: 24414 LACNIC Region origin ASes present in the Internet Routing Table: 4314 LACNIC Prefixes per ASN: 12.64 LACNIC Region origin ASes announcing only one prefix: 1520 LACNIC Region transit ASes present in the Internet Routing Table: 885 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: 3306 Number of LACNIC addresses announced to Internet: 109021248 Equivalent to 6 /8s, 127 /16s and 136 /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: 11174 Total AfriNIC prefixes after maximum aggregation: 2338 AfriNIC Deaggregation factor: 4.78 Prefixes being announced from the AfriNIC address blocks: 14200 Unique aggregates announced from the AfriNIC address blocks: 4401 AfriNIC Region origin ASes present in the Internet Routing Table: 276 AfriNIC Prefixes per ASN: 51.45 AfriNIC Region origin ASes announcing only one prefix: 96 AfriNIC Region transit ASes present in the Internet Routing Table: 77 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: 141 Number of AfriNIC addresses announced to Internet: 46234368 Equivalent to 2 /8s, 193 /16s and 123 /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 12362 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 867 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 802 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2169 463 SINET-AS Research Organization of Informa 132525 593 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 13691 41052 5253 AMAZON-02, US 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2896 219 1737 USDA-1, US 36352 2553 209 1141 AS-COLOCROSSING, US 367 2445 2957 1151 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 1596 22826 1194 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 1219 96 991 AKAMAI-ASN1, NL 3257 1066 2083 816 GTT-BACKBONE GTT, US 34984 941 118 607 TELLCOM-AS, TR 3215 921 4895 284 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 581 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 7446 2011 888 UNINET, MX 11830 1987 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 1016 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 650 92 45 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 1486 572 23 RAYA-AS, EG 29571 1155 99 104 ORANGE-COTE-IVOIRE, CI 24863 1020 388 20 LINKdotNET-AS, EG 37069 877 1112 11 MOBINIL, EG 36935 594 518 29 Vodafone-, EG 36914 576 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 505 1086 218 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 13691 41052 5253 AMAZON-02, US 9808 12362 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7446 2011 888 UNINET, MX 22773 3337 3013 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3222 54766 2473 DNIC-AS-00749, US 4155 2896 219 1737 USDA-1, US 56046 2827 811 189 CMNET-JIANGSU-AP China Mobile communicati 36352 2553 209 1141 AS-COLOCROSSING, US 367 2445 2957 1151 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 12362 12247 CHINAMOBILE-CN China Mobile Communications Grou 8151 7446 6558 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 1661 1611 CMNET-HUNAN-AP China Mobile communications corp 56041 1643 1565 CMNET-ZHEJIANG-AP China Mobile communications c 24835 1486 1463 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 /10:30 /11:51 /12:159 /13:215 /14:590 /15:1120 /16:7772 /17:3487 /18:4246 /19:7803 /20:13259 /21:16026 /22:28807 /23:29302 /24:167294 /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 3995 7446 UNINET, MX 22773 2492 3337 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2353 13691 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1028 1362 BRSPD-PUBLIC, US 36352 1014 2553 AS-COLOCROSSING, US 10620 997 1691 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 2:462 3:866 4:5 5:806 6:145 7:5 8:654 9:1 11:171 12:954 13:391 14:112 15:310 16:247 17:3 18:890 20:191 21:4 22:188 23:2653 24:677 27:24 29:19 31:489 32:18 33:1 34:10 35:175 36:2958 37:757 38:2603 39:593 40:83 41:1065 42:21 43:220 44:27 45:4208 46:1004 47:111 49:25 50:476 51:385 52:1382 54:319 55:1107 56:11 57:24 58:17 59:31 60:31 61:59 62:517 63:783 64:1922 65:1107 66:1620 67:1088 68:369 69:1261 70:456 71:189 72:686 74:965 75:319 76:265 77:475 78:355 79:243 80:321 81:374 82:759 83:238 84:339 85:469 86:248 87:204 88:304 89:709 90:109 91:999 92:699 93:475 94:1001 95:669 96:260 97:54 98:501 99:188 100:40 101:28 102:389 103:1287 104:1683 105:193 106:47 107:1549 108:520 109:440 110:48 111:2156 112:784 113:38 114:55 115:23 116:52 117:1182 118:84 119:85 120:1477 121:50 122:60 123:149 124:65 125:25 126:1 128:525 129:402 130:673 131:1027 132:568 133:212 134:496 135:126 136:675 137:521 138:1023 139:454 140:679 141:378 142:1025 143:835 144:435 145:155 146:660 147:511 148:1003 149:730 150:210 151:819 152:623 153:132 154:1208 155:902 156:946 157:425 158:575 159:732 160:854 161:698 162:1043 163:440 164:731 165:629 166:814 167:694 168:1563 169:165 170:1772 171:103 172:1333 173:843 174:359 175:92 176:819 177:1062 178:613 179:829 180:43 181:2278 182:30 183:1116 184:458 185:3497 186:2999 187:1594 188:831 189:1951 190:6025 191:547 192:5242 193:1842 194:1218 195:933 196:723 197:1177 198:2761 199:5079 200:4623 201:3808 202:993 203:697 204:2227 205:1803 206:1582 207:1618 208:1518 209:1986 210:343 211:471 212:959 213:792 214:943 215:37 216:2600 217:459 218:570 219:18 220:32 221:470 222:24 223:1170 End of report