IPv4 R&E Routing Table Report 20:15 GMT Tue 03 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: 264853 Prefixes after maximum aggregation (per Origin AS): 116168 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 136078 Number of IPv4 prefixes with a valid ROA: 119577 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 145234 Total ASes present in the Internet Routing Table: 19952 Prefixes per ASN: 13.27 Origin-only ASes present in the Internet Routing Table: 17223 Origin ASes announcing only one prefix: 7804 Transit ASes present in the Internet Routing Table: 2729 Transit-only ASes present in the Internet Routing Table: 720 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: 30 Max AS path prepend of ASN (266745) 25 Prefixes from unregistered ASNs in the Routing Table: 311 Number of instances of unregistered ASNs: 315 Number of 32-bit ASNs allocated by the RIRs: 46558 Number of 32-bit ASNs visible in the Routing Table: 7640 Prefixes from 32-bit ASNs in the Routing Table: 28650 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: 109 Number of addresses announced to Internet: 1557311197 Equivalent to 92 /8s, 210 /16s and 174 /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: 83355 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32679 Total APNIC prefixes after maximum aggregation: 7480 APNIC Deaggregation factor: 4.37 Prefixes being announced from the APNIC address blocks: 31084 Unique aggregates announced from the APNIC address blocks: 7559 APNIC Region origin ASes present in the Internet Routing Table: 1223 APNIC Prefixes per ASN: 25.42 APNIC Region origin ASes announcing only one prefix: 479 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: 566 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: 126285 Total ARIN prefixes after maximum aggregation: 66037 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 123316 Unique aggregates announced from the ARIN address blocks: 66564 ARIN Region origin ASes present in the Internet Routing Table: 9340 ARIN Prefixes per ASN: 13.20 ARIN Region origin ASes announcing only one prefix: 3906 ARIN Region transit ASes present in the Internet Routing Table: 870 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: 2187 Number of ARIN addresses announced to Internet: 960788705 Equivalent to 57 /8s, 68 /16s and 120 /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: 49469 Total RIPE prefixes after maximum aggregation: 26587 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 51362 Unique aggregates announced from the RIPE address blocks: 37357 RIPE Region origin ASes present in the Internet Routing Table: 4595 RIPE Prefixes per ASN: 11.18 RIPE Region origin ASes announcing only one prefix: 1935 RIPE Region transit ASes present in the Internet Routing Table: 689 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: 1892 Number of RIPE addresses announced to Internet: 285830480 Equivalent to 17 /8s, 9 /16s and 109 /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: 45033 Total LACNIC prefixes after maximum aggregation: 13518 LACNIC Deaggregation factor: 3.33 Prefixes being announced from the LACNIC address blocks: 44226 Unique aggregates announced from the LACNIC address blocks: 20199 LACNIC Region origin ASes present in the Internet Routing Table: 3658 LACNIC Prefixes per ASN: 12.09 LACNIC Region origin ASes announcing only one prefix: 1369 LACNIC Region transit ASes present in the Internet Routing Table: 765 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: 2836 Number of LACNIC addresses announced to Internet: 97215552 Equivalent to 5 /8s, 203 /16s and 100 /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: 11076 Total AfriNIC prefixes after maximum aggregation: 2336 AfriNIC Deaggregation factor: 4.74 Prefixes being announced from the AfriNIC address blocks: 14756 Unique aggregates announced from the AfriNIC address blocks: 4291 AfriNIC Region origin ASes present in the Internet Routing Table: 291 AfriNIC Prefixes per ASN: 50.71 AfriNIC Region origin ASes announcing only one prefix: 115 AfriNIC Region transit ASes present in the Internet Routing Table: 77 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: 159 Number of AfriNIC addresses announced to Internet: 46779904 Equivalent to 2 /8s, 201 /16s and 206 /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 1924 811 187 CMNET-JIANGSU-AP China Mobile communicati 56041 1633 718 90 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1483 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 516 848 138 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 13627 40828 5196 AMAZON-02, US 22773 3344 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2754 210 1688 USDA-1, US 36352 2546 209 1121 AS-COLOCROSSING, US 367 2451 2913 1177 DNIC-ASBLK-00306-00371, US 7018 2066 22882 1519 ATT-INTERNET4, US 11776 1900 259 211 ATLANTICBB-JOHNSTOWN, US 6167 1887 3867 499 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 1171 91 956 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 641 47 567 CDNEXT, GB 203214 597 44 398 HULUMTELE, IQ 8376 577 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 7409 1988 971 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 1199 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 1151 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 551 82 3 KENET-AS, KE 37069 469 1046 15 MOBINIL, EG 36903 444 206 314 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 13627 40828 5196 AMAZON-02, US 9808 10880 8756 96 CHINAMOBILE-CN China Mobile Communication 8151 7409 1988 971 UNINET, MX 22773 3344 3016 166 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2754 210 1688 USDA-1, US 36352 2546 209 1121 AS-COLOCROSSING, US 367 2451 2913 1177 DNIC-ASBLK-00306-00371, US 7018 2066 22882 1519 ATT-INTERNET4, US 11830 1991 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 10880 10784 CHINAMOBILE-CN China Mobile Communications Grou 8151 7409 6438 UNINET, MX 22773 3344 3178 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1991 1927 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 56046 1924 1737 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 1483 1433 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 /16:7627 /17:3423 /18:4195 /19:7618 /20:12483 /21:15237 /22:27556 /23:28077 /24:156288 /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 3985 7409 UNINET, MX 22773 2495 3344 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2386 13627 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 1034 2546 AS-COLOCROSSING, US 19901 984 1278 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 2:470 3:802 4:5 5:788 6:155 7:5 8:672 11:171 12:988 13:382 14:115 15:305 16:247 17:6 18:886 20:187 21:4 22:188 23:2569 24:638 27:22 29:19 31:522 32:9 33:1 34:10 35:177 36:1831 37:1015 38:1904 39:552 40:62 41:991 42:21 43:210 44:35 45:3703 46:951 47:92 49:20 50:350 51:384 52:1399 54:318 55:1053 56:11 57:20 58:16 59:32 60:15 61:74 62:536 63:749 64:1976 65:1095 66:1525 67:992 68:402 69:1129 70:477 71:199 72:720 74:942 75:320 76:248 77:488 78:348 79:244 80:315 81:374 82:715 83:235 84:337 85:417 86:233 87:207 88:296 89:867 90:104 91:938 92:635 93:487 94:923 95:681 96:292 97:53 98:456 99:188 100:36 101:18 102:344 103:1226 104:1658 105:207 106:3 107:1556 108:553 109:399 110:35 111:1918 112:499 113:39 114:40 115:23 116:62 117:1042 118:62 119:89 120:1265 121:43 122:67 123:76 124:57 125:25 128:491 129:397 130:683 131:947 132:572 133:211 134:498 135:112 136:597 137:507 138:913 139:440 140:701 141:462 142:1031 143:698 144:444 145:152 146:683 147:516 148:875 149:791 150:353 151:637 152:482 153:129 154:1656 155:851 156:1390 157:370 158:555 159:735 160:870 161:614 162:1008 163:482 164:718 165:777 166:793 167:659 168:1140 169:160 170:1594 171:122 172:1376 173:798 174:285 175:62 176:783 177:893 178:512 179:710 180:41 181:1797 182:28 183:965 184:452 185:3515 186:2063 187:1463 188:832 189:1772 190:4132 191:459 192:5175 193:1889 194:1230 195:935 196:689 197:1546 198:2747 199:4917 200:3647 201:3278 202:1005 203:741 204:2161 205:1952 206:1532 207:1536 208:1451 209:1892 210:297 211:422 212:1024 213:774 214:983 215:42 216:2554 217:424 218:525 219:18 220:28 221:360 222:31 223:823 End of report