IPv4 R&E Routing Table Report 20:15 GMT Mon 23 Jun, 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: 262499 Prefixes after maximum aggregation (per Origin AS): 115604 Deaggregation factor: 2.27 Unique aggregates announced (without unneeded subnets): 135872 Number of IPv4 prefixes with a valid ROA: 119045 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 143412 Total ASes present in the Internet Routing Table: 19658 Prefixes per ASN: 13.35 Origin-only ASes present in the Internet Routing Table: 16987 Origin ASes announcing only one prefix: 7722 Transit ASes present in the Internet Routing Table: 2671 Transit-only ASes present in the Internet Routing Table: 690 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: 41 Max AS path prepend of ASN ( 37447) 34 Prefixes from unregistered ASNs in the Routing Table: 373 Number of instances of unregistered ASNs: 405 Number of 32-bit ASNs allocated by the RIRs: 46701 Number of 32-bit ASNs visible in the Routing Table: 7428 Prefixes from 32-bit ASNs in the Routing Table: 28771 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: 108 Number of addresses announced to Internet: 1556474373 Equivalent to 92 /8s, 197 /16s and 234 /24s Percentage of available address space announced: 42.0 Percentage of allocated address space announced: 42.0 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: 83436 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32658 Total APNIC prefixes after maximum aggregation: 7274 APNIC Deaggregation factor: 4.49 Prefixes being announced from the APNIC address blocks: 31698 Unique aggregates announced from the APNIC address blocks: 7578 APNIC Region origin ASes present in the Internet Routing Table: 1200 APNIC Prefixes per ASN: 26.41 APNIC Region origin ASes announcing only one prefix: 470 APNIC Region transit ASes present in the Internet Routing Table: 191 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 562 Number of APNIC addresses announced to Internet: 166810476 Equivalent to 9 /8s, 241 /16s and 83 /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: 124648 Total ARIN prefixes after maximum aggregation: 65782 ARIN Deaggregation factor: 1.89 Prefixes being announced from the ARIN address blocks: 122402 Unique aggregates announced from the ARIN address blocks: 66387 ARIN Region origin ASes present in the Internet Routing Table: 9308 ARIN Prefixes per ASN: 13.15 ARIN Region origin ASes announcing only one prefix: 3876 ARIN Region transit ASes present in the Internet Routing Table: 868 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: 2199 Number of ARIN addresses announced to Internet: 959020297 Equivalent to 57 /8s, 41 /16s and 125 /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: 49670 Total RIPE prefixes after maximum aggregation: 26804 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 51506 Unique aggregates announced from the RIPE address blocks: 37566 RIPE Region origin ASes present in the Internet Routing Table: 4615 RIPE Prefixes per ASN: 11.16 RIPE Region origin ASes announcing only one prefix: 1933 RIPE Region transit ASes present in the Internet Routing Table: 692 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 41 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1909 Number of RIPE addresses announced to Internet: 286607184 Equivalent to 17 /8s, 21 /16s and 71 /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: 44286 Total LACNIC prefixes after maximum aggregation: 13143 LACNIC Deaggregation factor: 3.37 Prefixes being announced from the LACNIC address blocks: 43405 Unique aggregates announced from the LACNIC address blocks: 19612 LACNIC Region origin ASes present in the Internet Routing Table: 3409 LACNIC Prefixes per ASN: 12.73 LACNIC Region origin ASes announcing only one prefix: 1324 LACNIC Region transit ASes present in the Internet Routing Table: 701 Average LACNIC Region AS path length visible: 5.8 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2593 Number of LACNIC addresses announced to Internet: 97211456 Equivalent to 5 /8s, 203 /16s and 84 /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: 10864 Total AfriNIC prefixes after maximum aggregation: 2337 AfriNIC Deaggregation factor: 4.65 Prefixes being announced from the AfriNIC address blocks: 13380 Unique aggregates announced from the AfriNIC address blocks: 4622 AfriNIC Region origin ASes present in the Internet Routing Table: 305 AfriNIC Prefixes per ASN: 43.87 AfriNIC Region origin ASes announcing only one prefix: 119 AfriNIC Region transit ASes present in the Internet Routing Table: 74 Average AfriNIC Region AS path length visible: 6.4 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 165 Number of AfriNIC addresses announced to Internet: 46778624 Equivalent to 2 /8s, 201 /16s and 201 /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 11057 8759 104 CHINAMOBILE-CN China Mobile Communication 56046 2132 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1670 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 24547 868 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 24444 776 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 613 2170 465 SINET-AS Research Organization of Informa 45102 530 856 135 ALIBABA-CN-NET Alibaba US Technology Co., 24445 523 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 132525 456 98 29 CMNET-HEILONGJIANG-CN HeiLongJiang Mobile 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 13581 40951 5204 AMAZON-02, US 22773 3345 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 4155 2808 213 1715 USDA-1, US 36352 2556 210 1130 AS-COLOCROSSING, US 7018 1929 22867 1439 ATT-INTERNET4, US 367 1920 2288 998 DNIC-ASBLK-00306-00371, US 6167 1910 3953 511 CELLCO-PART, US 11776 1901 259 214 ATLANTICBB-JOHNSTOWN, US 209 1658 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 1192 92 967 AKAMAI-ASN1, NL 3257 1023 2081 792 GTT-BACKBONE GTT, US 3215 887 4818 291 France Telecom - Orange, FR 25019 816 1301 129 SAUDINETSTC-AS, SA 8452 788 1841 16 TE-AS TE-AS, EG 34984 678 74 412 TELLCOM-AS, TR 212238 651 47 576 CDNEXT, GB 8376 572 53 24 Jordan Data Communications, JO 51167 568 113 251 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 7373 1993 932 UNINET, MX 11830 1987 369 64 Instituto Costarricense de Electricidad y 10620 1672 243 1210 Telmex Colombia S.A., CO 3816 1340 787 207 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 26615 1047 2503 52 TIM SA, BR 18881 885 1127 31 TELEFONICA BRASIL S.A, BR 28006 648 77 298 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 627 90 33 ENTEL CHILE S.A., CL 6503 529 346 132 Axtel, S.A.B. de C.V., MX 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 24863 1451 389 16 LINKdotNET-AS, EG 29571 1159 101 74 ORANGE-COTE-IVOIRE, CI 24835 1063 475 106 RAYA-AS, EG 36935 609 520 50 Vodafone-, EG 36914 571 82 3 KENET-AS, KE 20011 568 154 212 INTERNET-SOLUTIONS, ZA 36992 551 1192 124 ETISALAT-MISR, EG 37069 451 1046 15 MOBINIL, EG 36903 439 196 324 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 13581 40951 5204 AMAZON-02, US 9808 11057 8759 104 CHINAMOBILE-CN China Mobile Communication 8151 7373 1993 932 UNINET, MX 22773 3345 3015 163 ASN-CXA-ALL-CCI-22773-RDC, US 749 3227 54767 2478 DNIC-AS-00749, US 4155 2808 213 1715 USDA-1, US 36352 2556 210 1130 AS-COLOCROSSING, US 56046 2132 811 188 CMNET-JIANGSU-AP China Mobile communicati 11830 1987 369 64 Instituto Costarricense de Electricidad y 39891 1936 130 50 ALJAWWALSTC-AS, SA 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 11057 10953 CHINAMOBILE-CN China Mobile Communications Grou 8151 7373 6441 UNINET, MX 22773 3345 3182 ASN-CXA-ALL-CCI-22773-RDC, US 56046 2132 1944 CMNET-JIANGSU-AP China Mobile communications co 11830 1987 1923 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1901 1687 ATLANTICBB-JOHNSTOWN, US 56041 1670 1580 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1451 1435 LINKdotNET-AS, EG 56047 1482 1432 CMNET-HUNAN-AP China Mobile communications corp 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 399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US 13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US 396831 UNALLOCATED 12.23.198.0/24 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 41.77.208.0/22 Origin: 37475 RESERVED, ZZ 41.77.208.0/22 Transit: 15964 CAMNET-AS, CM 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 Transit: 328766 RESERVED, ZZ 41.204.226.0/24 Origin: 36911 RESERVED, ZZ 41.204.226.0/24 Transit: 328766 RESERVED, ZZ 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 /9:10 /10:30 /11:42 /12:151 /13:207 /14:572 /15:1091 /16:7554 /17:3434 /18:4187 /19:7588 /20:12553 /21:15288 /22:27266 /23:27813 /24:154476 /25:63 /26:81 /27:34 /28:13 /29:17 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3991 7373 UNINET, MX 22773 2500 3345 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2343 13581 AMAZON-02, US 11830 1691 1987 Instituto Costarricense de Electricidad y Telecom., CR 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1032 2556 AS-COLOCROSSING, US 19901 1010 1314 BRSPD-PUBLIC, US 10620 967 1672 Telmex Colombia S.A., CO 209 963 1658 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1901 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:19 2:456 3:817 4:5 5:805 6:128 7:5 8:657 11:171 12:970 13:391 14:115 15:306 16:247 17:4 18:885 20:188 21:4 22:188 23:2632 24:712 27:21 29:19 31:519 32:12 33:1 34:10 35:180 36:1951 37:863 38:2005 39:550 40:64 41:1034 42:20 43:221 44:34 45:3526 46:971 47:96 49:21 50:358 51:387 52:1389 54:316 55:976 56:11 57:22 58:16 59:30 60:32 61:84 62:522 63:748 64:1977 65:1092 66:1537 67:1052 68:399 69:1165 70:466 71:193 72:657 74:929 75:319 76:254 77:493 78:368 79:248 80:287 81:365 82:707 83:206 84:341 85:432 86:242 87:202 88:311 89:714 90:104 91:939 92:644 93:489 94:921 95:683 96:289 97:53 98:533 99:177 100:42 101:20 102:387 103:1237 104:1674 105:213 106:26 107:1558 108:551 109:404 110:39 111:1925 112:525 113:36 114:48 115:28 116:55 117:1044 118:66 119:82 120:1360 121:43 122:77 123:121 124:61 125:25 128:481 129:393 130:685 131:937 132:480 133:213 134:458 135:128 136:604 137:471 138:851 139:427 140:703 141:362 142:1030 143:712 144:430 145:121 146:690 147:509 148:899 149:789 150:205 151:707 152:492 153:142 154:964 155:851 156:884 157:378 158:541 159:742 160:877 161:639 162:1038 163:433 164:721 165:533 166:797 167:660 168:1136 169:165 170:1550 171:112 172:1352 173:811 174:361 175:83 176:776 177:840 178:495 179:692 180:40 181:1781 182:25 183:997 184:454 185:3558 186:2043 187:1527 188:847 189:1814 190:4132 191:446 192:5180 193:1893 194:1236 195:940 196:714 197:1213 198:2720 199:4949 200:3591 201:3306 202:948 203:728 204:2167 205:1760 206:1541 207:1556 208:1481 209:1966 210:328 211:437 212:1013 213:773 214:934 215:37 216:2558 217:435 218:538 219:19 220:34 221:395 222:24 223:899 End of report