IPv4 R&E Routing Table Report 20:15 GMT Mon 14 Jul, 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: 280635 Prefixes after maximum aggregation (per Origin AS): 122594 Deaggregation factor: 2.29 Unique aggregates announced (without unneeded subnets): 146067 Number of IPv4 prefixes with a valid ROA: 132599 Number of IPv4 prefixes with an invalid ROA: 51 Number of IPv4 prefixes with no ROA: 147985 Total ASes present in the Internet Routing Table: 21352 Prefixes per ASN: 13.14 Origin-only ASes present in the Internet Routing Table: 18387 Origin ASes announcing only one prefix: 8254 Transit ASes present in the Internet Routing Table: 2965 Transit-only ASes present in the Internet Routing Table: 734 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: 30 Max AS path prepend of ASN (265171) 25 Prefixes from unregistered ASNs in the Routing Table: 352 Number of instances of unregistered ASNs: 384 Number of 32-bit ASNs allocated by the RIRs: 46830 Number of 32-bit ASNs visible in the Routing Table: 8612 Prefixes from 32-bit ASNs in the Routing Table: 34144 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: 104 Number of addresses announced to Internet: 1655847173 Equivalent to 98 /8s, 178 /16s and 57 /24s Percentage of available address space announced: 44.7 Percentage of allocated address space announced: 44.7 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: 88769 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 36183 Total APNIC prefixes after maximum aggregation: 8454 APNIC Deaggregation factor: 4.28 Prefixes being announced from the APNIC address blocks: 34826 Unique aggregates announced from the APNIC address blocks: 9135 APNIC Region origin ASes present in the Internet Routing Table: 1445 APNIC Prefixes per ASN: 24.10 APNIC Region origin ASes announcing only one prefix: 589 APNIC Region transit ASes present in the Internet Routing Table: 235 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 17 Number of APNIC region 32-bit ASNs visible in the Routing Table: 708 Number of APNIC addresses announced to Internet: 179863916 Equivalent to 10 /8s, 184 /16s and 129 /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: 127456 Total ARIN prefixes after maximum aggregation: 66937 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 125996 Unique aggregates announced from the ARIN address blocks: 68401 ARIN Region origin ASes present in the Internet Routing Table: 9392 ARIN Prefixes per ASN: 13.42 ARIN Region origin ASes announcing only one prefix: 3885 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: 2205 Number of ARIN addresses announced to Internet: 1029000713 Equivalent to 61 /8s, 85 /16s and 78 /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: 50301 Total RIPE prefixes after maximum aggregation: 27788 RIPE Deaggregation factor: 1.81 Prefixes being announced from the RIPE address blocks: 51778 Unique aggregates announced from the RIPE address blocks: 38586 RIPE Region origin ASes present in the Internet Routing Table: 4739 RIPE Prefixes per ASN: 10.93 RIPE Region origin ASes announcing only one prefix: 2008 RIPE Region transit ASes present in the Internet Routing Table: 698 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1943 Number of RIPE addresses announced to Internet: 288448592 Equivalent to 17 /8s, 49 /16s and 96 /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: 56937 Total LACNIC prefixes after maximum aggregation: 16886 LACNIC Deaggregation factor: 3.37 Prefixes being announced from the LACNIC address blocks: 55272 Unique aggregates announced from the LACNIC address blocks: 25230 LACNIC Region origin ASes present in the Internet Routing Table: 4625 LACNIC Prefixes per ASN: 11.95 LACNIC Region origin ASes announcing only one prefix: 1667 LACNIC Region transit ASes present in the Internet Routing Table: 931 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: 3605 Number of LACNIC addresses announced to Internet: 109159744 Equivalent to 6 /8s, 129 /16s and 165 /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: 9406 Total AfriNIC prefixes after maximum aggregation: 2269 AfriNIC Deaggregation factor: 4.15 Prefixes being announced from the AfriNIC address blocks: 12659 Unique aggregates announced from the AfriNIC address blocks: 4613 AfriNIC Region origin ASes present in the Internet Routing Table: 285 AfriNIC Prefixes per ASN: 44.42 AfriNIC Region origin ASes announcing only one prefix: 105 AfriNIC Region transit ASes present in the Internet Routing Table: 69 Average AfriNIC Region AS path length visible: 6.6 Max AfriNIC Region AS path length visible: 26 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 151 Number of AfriNIC addresses announced to Internet: 49260032 Equivalent to 2 /8s, 239 /16s and 166 /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 11592 8761 115 CHINAMOBILE-CN China Mobile Communication 56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1610 714 78 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1501 192 50 CMNET-HUNAN-AP China Mobile communication 24547 873 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 775 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 611 2169 463 SINET-AS Research Organization of Informa 45102 541 888 141 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 496 66 CMNET-V4HENAN-AS-AP Henan Mobile Communic 17561 485 31 197 LCS-AS-AP LARUS Limited, HK 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 13683 40961 5267 AMAZON-02, US 22773 3338 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2862 217 1728 USDA-1, US 36352 2560 210 1145 AS-COLOCROSSING, US 367 2484 3084 1167 DNIC-ASBLK-00306-00371, US 6167 1927 4012 517 CELLCO-PART, US 11776 1902 259 215 ATLANTICBB-JOHNSTOWN, US 7018 1731 22854 1283 ATT-INTERNET4, US 209 1657 4889 270 CENTURYLINK-US-LEGACY-QWEST, 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 1197 93 974 AKAMAI-ASN1, NL 3257 1045 2082 808 GTT-BACKBONE GTT, US 34984 926 116 597 TELLCOM-AS, TR 3215 887 4818 291 France Telecom - Orange, FR 25019 806 1301 130 SAUDINETSTC-AS, SA 8452 721 1841 16 TE-AS TE-AS, EG 212238 685 48 603 CDNEXT, GB 58224 658 427 474 TCI, IR 8376 567 52 23 Jordan Data Communications, JO 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 7601 2058 902 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1751 254 1251 Telmex Colombia S.A., CO 3816 1346 787 205 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1197 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 22884 668 42 409 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M 27651 649 92 46 ENTEL CHILE S.A., CL 28006 648 77 298 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 29571 1067 100 72 ORANGE-COTE-IVOIRE, CI 24835 909 502 32 RAYA-AS, EG 37069 702 1112 11 MOBINIL, EG 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36914 568 82 3 KENET-AS, KE 24863 566 347 49 LINKdotNET-AS, EG 36992 473 1043 191 ETISALAT-MISR, EG 36903 456 204 330 MT-MPLS, MA 2018 375 318 69 TENET-1, ZA 36935 357 515 9 Vodafone-, EG 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 13683 40961 5267 AMAZON-02, US 9808 11592 8761 115 CHINAMOBILE-CN China Mobile Communication 8151 7601 2058 902 UNINET, MX 22773 3338 3017 165 ASN-CXA-ALL-CCI-22773-RDC, US 749 3225 54767 2476 DNIC-AS-00749, US 4155 2862 217 1728 USDA-1, US 56046 2590 811 188 CMNET-JIANGSU-AP China Mobile communicati 36352 2560 210 1145 AS-COLOCROSSING, US 367 2484 3084 1167 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 11592 11477 CHINAMOBILE-CN China Mobile Communications Grou 8151 7601 6699 UNINET, MX 22773 3338 3173 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2590 2402 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 56041 1610 1532 CMNET-ZHEJIANG-AP China Mobile communications c 56047 1501 1451 CMNET-HUNAN-AP China Mobile communications corp 36352 2560 1415 AS-COLOCROSSING, 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 22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US 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 22542 UNALLOCATED 8.42.195.0/24 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 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 /12:163 /13:223 /14:598 /15:1116 /16:7767 /17:3545 /18:4313 /19:7788 /20:13015 /21:16010 /22:27582 /23:29610 /24:168566 /25:64 /26:81 /27:37 /28:17 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 4034 7601 UNINET, MX 22773 2492 3338 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2346 13683 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 19901 1025 1345 BRSPD-PUBLIC, US 36352 1023 2560 AS-COLOCROSSING, US 10620 1017 1751 Telmex Colombia S.A., CO 209 962 1657 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) ---------------------------------------------- 1:47 2:449 3:850 4:5 5:713 6:157 7:5 8:668 11:171 12:971 13:403 14:129 15:308 16:248 17:3 18:891 20:188 21:4 22:188 23:2689 24:702 27:50 29:19 31:533 32:18 33:1 34:10 35:175 36:2318 37:720 38:2559 39:553 40:84 41:981 42:39 43:293 44:42 45:4377 46:998 47:108 49:30 50:414 51:390 52:1383 54:318 55:1107 56:11 57:24 58:19 59:49 60:33 61:124 62:542 63:792 64:1937 65:1131 66:1616 67:1092 68:392 69:1260 70:455 71:192 72:705 74:954 75:319 76:243 77:490 78:378 79:238 80:288 81:369 82:712 83:225 84:360 85:483 86:239 87:216 88:305 89:713 90:106 91:949 92:664 93:490 94:1004 95:747 96:281 97:53 98:512 99:197 100:42 101:60 102:384 103:1589 104:1712 105:183 106:40 107:1532 108:557 109:435 110:53 111:1955 112:628 113:42 114:66 115:32 116:81 117:1087 118:76 119:94 120:1434 121:60 122:70 123:135 124:71 125:30 126:1 128:533 129:357 130:676 131:1018 132:568 133:285 134:484 135:127 136:680 137:553 138:1053 139:461 140:732 141:377 142:1031 143:886 144:464 145:117 146:694 147:541 148:1013 149:751 150:215 151:820 152:636 153:146 154:1430 155:984 156:1025 157:404 158:580 159:774 160:860 161:676 162:1113 163:477 164:729 165:585 166:817 167:715 168:1578 169:167 170:1792 171:108 172:1344 173:846 174:362 175:104 176:789 177:1107 178:487 179:879 180:47 181:2286 182:31 183:1053 184:460 185:3532 186:2859 187:1816 188:818 189:2031 190:6020 191:541 192:5394 193:1853 194:1287 195:975 196:708 197:1085 198:2778 199:5067 200:4632 201:3814 202:1174 203:917 204:2259 205:1869 206:1611 207:1621 208:1512 209:1998 210:426 211:465 212:1002 213:790 214:985 215:41 216:2606 217:467 218:552 219:18 220:39 221:449 222:24 223:1037 End of report