IPv4 R&E Routing Table Report 20:15 GMT Sun 25 May, 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: 264017 Prefixes after maximum aggregation (per Origin AS): 115987 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135522 Number of IPv4 prefixes with a valid ROA: 118972 Number of IPv4 prefixes with an invalid ROA: 40 Number of IPv4 prefixes with no ROA: 145005 Total ASes present in the Internet Routing Table: 19873 Prefixes per ASN: 13.29 Origin-only ASes present in the Internet Routing Table: 17132 Origin ASes announcing only one prefix: 7793 Transit ASes present in the Internet Routing Table: 2741 Transit-only ASes present in the Internet Routing Table: 750 Paths with bogon ASNs present in the IPv4 Routing Table: 9 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: 312 Number of instances of unregistered ASNs: 316 Number of 32-bit ASNs allocated by the RIRs: 46520 Number of 32-bit ASNs visible in the Routing Table: 7501 Prefixes from 32-bit ASNs in the Routing Table: 27917 Number of bogon 32-bit ASNs visible in the Routing Table: 10 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 112 Number of addresses announced to Internet: 1557382109 Equivalent to 92 /8s, 211 /16s and 195 /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: 83279 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32490 Total APNIC prefixes after maximum aggregation: 7467 APNIC Deaggregation factor: 4.35 Prefixes being announced from the APNIC address blocks: 30955 Unique aggregates announced from the APNIC address blocks: 7565 APNIC Region origin ASes present in the Internet Routing Table: 1232 APNIC Prefixes per ASN: 25.13 APNIC Region origin ASes announcing only one prefix: 483 APNIC Region transit ASes present in the Internet Routing Table: 216 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: 566 Number of APNIC addresses announced to Internet: 166552172 Equivalent to 9 /8s, 237 /16s and 98 /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: 125952 Total ARIN prefixes after maximum aggregation: 66016 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123029 Unique aggregates announced from the ARIN address blocks: 66405 ARIN Region origin ASes present in the Internet Routing Table: 9356 ARIN Prefixes per ASN: 13.15 ARIN Region origin ASes announcing only one prefix: 3916 ARIN Region transit ASes present in the Internet Routing Table: 876 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: 2194 Number of ARIN addresses announced to Internet: 961015521 Equivalent to 57 /8s, 71 /16s and 238 /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: 49460 Total RIPE prefixes after maximum aggregation: 26530 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 51209 Unique aggregates announced from the RIPE address blocks: 37179 RIPE Region origin ASes present in the Internet Routing Table: 4599 RIPE Prefixes per ASN: 11.13 RIPE Region origin ASes announcing only one prefix: 1939 RIPE Region transit ASes present in the Internet Routing Table: 703 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: 1888 Number of RIPE addresses announced to Internet: 285507920 Equivalent to 17 /8s, 4 /16s and 129 /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: 44786 Total LACNIC prefixes after maximum aggregation: 13383 LACNIC Deaggregation factor: 3.35 Prefixes being announced from the LACNIC address blocks: 43935 Unique aggregates announced from the LACNIC address blocks: 19953 LACNIC Region origin ASes present in the Internet Routing Table: 3514 LACNIC Prefixes per ASN: 12.50 LACNIC Region origin ASes announcing only one prefix: 1339 LACNIC Region transit ASes present in the Internet Routing Table: 728 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: 2695 Number of LACNIC addresses announced to Internet: 97423936 Equivalent to 5 /8s, 206 /16s and 146 /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: 11017 Total AfriNIC prefixes after maximum aggregation: 2377 AfriNIC Deaggregation factor: 4.63 Prefixes being announced from the AfriNIC address blocks: 14777 Unique aggregates announced from the AfriNIC address blocks: 4309 AfriNIC Region origin ASes present in the Internet Routing Table: 295 AfriNIC Prefixes per ASN: 50.09 AfriNIC Region origin ASes announcing only one prefix: 116 AfriNIC Region transit ASes present in the Internet Routing Table: 80 Average AfriNIC Region AS path length visible: 6.5 Max AfriNIC Region AS path length visible: 38 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 158 Number of AfriNIC addresses announced to Internet: 46832640 Equivalent to 2 /8s, 202 /16s and 156 /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 10844 8756 95 CHINAMOBILE-CN China Mobile Communication 56046 1849 811 186 CMNET-JIANGSU-AP China Mobile communicati 56041 1586 715 80 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1482 192 50 CMNET-HUNAN-AP China Mobile communication 24547 863 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic 17561 821 52 385 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 13538 40827 5155 AMAZON-02, US 22773 3344 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2752 209 1685 USDA-1, US 36352 2569 210 1131 AS-COLOCROSSING, US 367 2439 2910 1171 DNIC-ASBLK-00306-00371, US 7018 2074 22883 1527 ATT-INTERNET4, US 11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US 6167 1876 3829 493 CELLCO-PART, US 209 1661 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 1182 92 966 AKAMAI-ASN1, NL 3257 929 2076 746 GTT-BACKBONE GTT, US 3215 894 4818 289 France Telecom - Orange, FR 25019 817 1301 129 SAUDINETSTC-AS, SA 8452 779 1841 16 TE-AS TE-AS, EG 34984 688 76 410 TELLCOM-AS, TR 212238 621 44 547 CDNEXT, GB 203214 586 43 379 HULUMTELE, IQ 8376 573 53 21 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 7441 2004 986 UNINET, MX 11830 1990 369 64 Instituto Costarricense de Electricidad y 10620 1902 280 1293 Telmex Colombia S.A., CO 3816 1339 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1196 371 22 Telefonica del Peru S.A.A., PE 26615 1033 2503 52 TIM SA, BR 18881 883 1127 31 TELEFONICA BRASIL S.A, BR 27651 648 94 35 ENTEL CHILE S.A., CL 28006 647 77 297 CORPORACION NACIONAL DE TELECOMUNICACIONE 26599 552 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 1481 389 16 LINKdotNET-AS, EG 24835 1049 535 35 RAYA-AS, EG 29571 988 100 74 ORANGE-COTE-IVOIRE, CI 20011 980 185 285 INTERNET-SOLUTIONS, ZA 36992 603 1228 124 ETISALAT-MISR, EG 36935 601 128 168 Vodafone-, EG 36914 552 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 457 205 331 MT-MPLS, MA 2018 373 318 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 13538 40827 5155 AMAZON-02, US 9808 10844 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7441 2004 986 UNINET, MX 22773 3344 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2752 209 1685 USDA-1, US 36352 2569 210 1131 AS-COLOCROSSING, US 367 2439 2910 1171 DNIC-ASBLK-00306-00371, US 7018 2074 22883 1527 ATT-INTERNET4, US 11830 1990 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 10844 10749 CHINAMOBILE-CN China Mobile Communications Grou 8151 7441 6455 UNINET, MX 22773 3344 3180 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1900 1689 ATLANTICBB-JOHNSTOWN, US 56046 1849 1663 CMNET-JIANGSU-AP China Mobile communications co 56041 1586 1506 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1481 1465 LINKdotNET-AS, EG 36352 2569 1438 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 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 /15:1100 /16:7637 /17:3423 /18:4220 /19:7646 /20:12421 /21:15264 /22:27475 /23:27931 /24:155649 /25:62 /26:82 /27:36 /28:13 /29:16 /30:10 /31:1 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 3998 7441 UNINET, MX 22773 2497 3344 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2363 13538 AMAZON-02, US 11830 1693 1990 Instituto Costarricense de Electricidad y Telecom., CR 10620 1081 1902 Telmex Colombia S.A., CO 39891 1081 1936 ALJAWWALSTC-AS, SA 36352 1044 2569 AS-COLOCROSSING, US 19901 983 1272 BRSPD-PUBLIC, US 209 964 1661 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 2:474 3:781 4:5 5:792 6:156 7:5 8:680 11:171 12:987 13:378 14:115 15:302 16:247 17:6 18:889 20:183 21:4 22:188 23:2597 24:641 27:24 29:19 31:504 32:9 33:1 34:10 35:136 36:1768 37:984 38:1899 39:551 40:62 41:978 42:21 43:206 44:35 45:3600 46:960 47:92 49:20 50:366 51:386 52:1394 54:316 55:1096 56:11 57:19 58:16 59:32 60:17 61:73 62:544 63:755 64:1919 65:1090 66:1545 67:964 68:399 69:1125 70:415 71:201 72:737 74:969 75:327 76:248 77:487 78:349 79:237 80:310 81:371 82:730 83:233 84:337 85:423 86:234 87:212 88:293 89:875 90:104 91:931 92:639 93:482 94:945 95:677 96:289 97:60 98:453 99:178 100:35 101:36 102:373 103:1237 104:1619 105:214 106:4 107:1525 108:548 109:399 110:35 111:1920 112:485 113:39 114:40 115:23 116:62 117:1043 118:62 119:89 120:1249 121:44 122:65 123:76 124:57 125:25 128:493 129:393 130:700 131:905 132:562 133:211 134:495 135:113 136:606 137:508 138:917 139:432 140:700 141:459 142:1025 143:689 144:437 145:132 146:673 147:516 148:882 149:763 150:351 151:644 152:476 153:129 154:1699 155:861 156:1335 157:377 158:559 159:719 160:818 161:633 162:991 163:431 164:719 165:774 166:791 167:623 168:1113 169:155 170:1548 171:121 172:1379 173:849 174:250 175:59 176:786 177:831 178:507 179:683 180:46 181:1821 182:29 183:955 184:450 185:3528 186:2086 187:1415 188:832 189:1760 190:4221 191:449 192:5195 193:1880 194:1240 195:933 196:685 197:1570 198:2734 199:4917 200:3633 201:3272 202:1009 203:754 204:2150 205:1957 206:1558 207:1529 208:1430 209:1908 210:297 211:419 212:1027 213:784 214:977 215:42 216:2542 217:429 218:523 219:18 220:28 221:350 222:31 223:798 End of report