IPv4 R&E Routing Table Report 20:15 GMT Wed 04 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: 265638 Prefixes after maximum aggregation (per Origin AS): 116626 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 136504 Number of IPv4 prefixes with a valid ROA: 119964 Number of IPv4 prefixes with an invalid ROA: 28 Number of IPv4 prefixes with no ROA: 145646 Total ASes present in the Internet Routing Table: 20104 Prefixes per ASN: 13.21 Origin-only ASes present in the Internet Routing Table: 17351 Origin ASes announcing only one prefix: 7894 Transit ASes present in the Internet Routing Table: 2753 Transit-only ASes present in the Internet Routing Table: 715 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: 315 Number of instances of unregistered ASNs: 347 Number of 32-bit ASNs allocated by the RIRs: 46565 Number of 32-bit ASNs visible in the Routing Table: 7750 Prefixes from 32-bit ASNs in the Routing Table: 29050 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: 107 Number of addresses announced to Internet: 1558531293 Equivalent to 92 /8s, 229 /16s and 76 /24s Percentage of available address space announced: 42.1 Percentage of allocated address space announced: 42.1 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: 83528 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32808 Total APNIC prefixes after maximum aggregation: 7517 APNIC Deaggregation factor: 4.36 Prefixes being announced from the APNIC address blocks: 31182 Unique aggregates announced from the APNIC address blocks: 7575 APNIC Region origin ASes present in the Internet Routing Table: 1224 APNIC Prefixes per ASN: 25.48 APNIC Region origin ASes announcing only one prefix: 480 APNIC Region transit ASes present in the Internet Routing Table: 199 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 16 Number of APNIC region 32-bit ASNs visible in the Routing Table: 568 Number of APNIC addresses announced to Internet: 166652268 Equivalent to 9 /8s, 238 /16s and 233 /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: 126241 Total ARIN prefixes after maximum aggregation: 66064 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123312 Unique aggregates announced from the ARIN address blocks: 66489 ARIN Region origin ASes present in the Internet Routing Table: 9334 ARIN Prefixes per ASN: 13.21 ARIN Region origin ASes announcing only one prefix: 3906 ARIN Region transit ASes present in the Internet Routing Table: 867 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: 2185 Number of ARIN addresses announced to Internet: 960755937 Equivalent to 57 /8s, 67 /16s and 248 /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: 49737 Total RIPE prefixes after maximum aggregation: 26818 RIPE Deaggregation factor: 1.85 Prefixes being announced from the RIPE address blocks: 51725 Unique aggregates announced from the RIPE address blocks: 37687 RIPE Region origin ASes present in the Internet Routing Table: 4711 RIPE Prefixes per ASN: 10.98 RIPE Region origin ASes announcing only one prefix: 1984 RIPE Region transit ASes present in the Internet Routing Table: 701 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: 1956 Number of RIPE addresses announced to Internet: 287004496 Equivalent to 17 /8s, 27 /16s and 87 /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: 45476 Total LACNIC prefixes after maximum aggregation: 13692 LACNIC Deaggregation factor: 3.32 Prefixes being announced from the LACNIC address blocks: 44589 Unique aggregates announced from the LACNIC address blocks: 20381 LACNIC Region origin ASes present in the Internet Routing Table: 3706 LACNIC Prefixes per ASN: 12.03 LACNIC Region origin ASes announcing only one prefix: 1412 LACNIC Region transit ASes present in the Internet Routing Table: 778 Average LACNIC Region AS path length visible: 5.9 Max LACNIC Region AS path length visible: 30 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 2884 Number of LACNIC addresses announced to Internet: 97315136 Equivalent to 5 /8s, 204 /16s and 233 /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: 11061 Total AfriNIC prefixes after maximum aggregation: 2325 AfriNIC Deaggregation factor: 4.76 Prefixes being announced from the AfriNIC address blocks: 14723 Unique aggregates announced from the AfriNIC address blocks: 4266 AfriNIC Region origin ASes present in the Internet Routing Table: 289 AfriNIC Prefixes per ASN: 50.94 AfriNIC Region origin ASes announcing only one prefix: 112 AfriNIC Region transit ASes present in the Internet Routing Table: 76 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 21 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 157 Number of AfriNIC addresses announced to Internet: 46759680 Equivalent to 2 /8s, 201 /16s and 127 /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 10880 8756 96 CHINAMOBILE-CN China Mobile Communication 56046 1995 811 188 CMNET-JIANGSU-AP China Mobile communicati 56041 1633 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1484 192 50 CMNET-HUNAN-AP China Mobile communication 24547 864 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 850 54 376 LCS-AS-AP LARUS Limited, HK 24444 778 500 75 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co 2907 605 2170 465 SINET-AS Research Organization of Informa 24445 522 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic 45102 517 848 138 ALIBABA-CN-NET Alibaba US Technology Co., 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 13624 40827 5198 AMAZON-02, US 22773 3325 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3230 54783 2481 DNIC-AS-00749, US 4155 2772 211 1697 USDA-1, US 36352 2547 209 1122 AS-COLOCROSSING, US 367 2457 2914 1185 DNIC-ASBLK-00306-00371, US 7018 2064 22881 1518 ATT-INTERNET4, US 11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US 6167 1893 3899 504 CELLCO-PART, US 209 1660 4889 271 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 1169 91 954 AKAMAI-ASN1, NL 3257 997 2080 779 GTT-BACKBONE GTT, US 3215 894 4818 289 France Telecom - Orange, FR 25019 817 1301 129 SAUDINETSTC-AS, SA 8452 791 1841 16 TE-AS TE-AS, EG 34984 673 73 404 TELLCOM-AS, TR 212238 642 47 568 CDNEXT, GB 203214 609 45 398 HULUMTELE, IQ 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 7411 1988 962 UNINET, MX 11830 1991 369 64 Instituto Costarricense de Electricidad y 10620 1902 281 1294 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1200 371 22 Telefonica del Peru S.A.A., PE 26615 1035 2503 52 TIM SA, BR 18881 884 1127 31 TELEFONICA BRASIL S.A, BR 28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 27651 628 90 34 ENTEL CHILE S.A., CL 26599 553 2884 69 TELEFONICA BRASIL S.A, BR 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 1463 389 16 LINKdotNET-AS, EG 29571 1159 100 74 ORANGE-COTE-IVOIRE, CI 24835 1053 535 35 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 604 1228 124 ETISALAT-MISR, EG 36935 577 122 154 Vodafone-, EG 36914 554 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 418 193 307 MT-MPLS, MA 2018 374 318 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 13624 40827 5198 AMAZON-02, US 9808 10880 8756 96 CHINAMOBILE-CN China Mobile Communication 8151 7411 1988 962 UNINET, MX 22773 3325 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3230 54783 2481 DNIC-AS-00749, US 4155 2772 211 1697 USDA-1, US 36352 2547 209 1122 AS-COLOCROSSING, US 367 2457 2914 1185 DNIC-ASBLK-00306-00371, US 7018 2064 22881 1518 ATT-INTERNET4, US 56046 1995 811 188 CMNET-JIANGSU-AP China Mobile communicati 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 10880 10784 CHINAMOBILE-CN China Mobile Communications Grou 8151 7411 6449 UNINET, MX 22773 3325 3159 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1991 1927 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 56046 1995 1807 CMNET-JIANGSU-AP China Mobile communications co 11776 1900 1689 ATLANTICBB-JOHNSTOWN, US 56041 1633 1543 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1463 1447 LINKdotNET-AS, EG 56047 1484 1434 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 23.152.48.0/24 Origin: 46167 RESERVED, ZZ 23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US 41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A 41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US 41.204.224.0/24 Origin: 36911 RESERVED, ZZ 41.204.224.0/24 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 /11:41 /12:150 /13:209 /14:573 /15:1101 /16:7631 /17:3436 /18:4222 /19:7639 /20:12564 /21:15247 /22:27660 /23:28154 /24:156736 /25:62 /26:81 /27:34 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3990 7411 UNINET, MX 22773 2476 3325 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2385 13624 AMAZON-02, US 11830 1694 1991 Instituto Costarricense de Electricidad y Telecom., CR 10620 1082 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1035 2547 AS-COLOCROSSING, US 19901 983 1277 BRSPD-PUBLIC, US 209 964 1660 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1900 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 2:466 3:800 4:5 5:797 6:155 7:5 8:673 11:171 12:994 13:380 14:114 15:305 16:247 17:6 18:889 20:187 21:4 22:188 23:2569 24:640 27:22 29:19 31:528 32:9 33:1 34:12 35:181 36:1848 37:1015 38:1931 39:552 40:62 41:997 42:21 43:212 44:36 45:3747 46:936 47:92 49:20 50:349 51:387 52:1398 54:317 55:1099 56:11 57:20 58:16 59:32 60:16 61:74 62:545 63:748 64:1968 65:1098 66:1525 67:990 68:401 69:1124 70:476 71:198 72:715 74:939 75:320 76:246 77:493 78:348 79:232 80:318 81:361 82:725 83:235 84:323 85:431 86:225 87:208 88:296 89:864 90:104 91:960 92:631 93:489 94:934 95:664 96:291 97:53 98:458 99:185 100:36 101:22 102:328 103:1235 104:1664 105:208 106:3 107:1554 108:558 109:402 110:35 111:1920 112:510 113:39 114:40 115:24 116:62 117:1042 118:71 119:90 120:1272 121:43 122:67 123:78 124:58 125:25 128:493 129:398 130:682 131:942 132:573 133:211 134:493 135:108 136:596 137:505 138:917 139:440 140:700 141:460 142:1030 143:699 144:443 145:147 146:687 147:520 148:896 149:782 150:354 151:633 152:501 153:129 154:1617 155:850 156:1397 157:371 158:557 159:741 160:871 161:635 162:998 163:483 164:714 165:786 166:789 167:657 168:1149 169:161 170:1592 171:126 172:1382 173:801 174:282 175:62 176:789 177:891 178:517 179:694 180:41 181:1765 182:28 183:966 184:444 185:3595 186:2091 187:1535 188:827 189:1811 190:4129 191:444 192:5189 193:1910 194:1234 195:951 196:685 197:1553 198:2744 199:4921 200:3616 201:3323 202:1011 203:737 204:2162 205:1949 206:1528 207:1536 208:1450 209:1895 210:297 211:422 212:1033 213:785 214:986 215:42 216:2536 217:416 218:528 219:18 220:28 221:371 222:24 223:848 End of report