IPv4 R&E Routing Table Report 20:15 GMT Sat 24 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: 264367 Prefixes after maximum aggregation (per Origin AS): 116042 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135590 Number of IPv4 prefixes with a valid ROA: 119330 Number of IPv4 prefixes with an invalid ROA: 40 Number of IPv4 prefixes with no ROA: 144997 Total ASes present in the Internet Routing Table: 19830 Prefixes per ASN: 13.33 Origin-only ASes present in the Internet Routing Table: 17131 Origin ASes announcing only one prefix: 7786 Transit ASes present in the Internet Routing Table: 2699 Transit-only ASes present in the Internet Routing Table: 715 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: 311 Number of instances of unregistered ASNs: 315 Number of 32-bit ASNs allocated by the RIRs: 46510 Number of 32-bit ASNs visible in the Routing Table: 7483 Prefixes from 32-bit ASNs in the Routing Table: 28213 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: 111 Number of addresses announced to Internet: 1557874909 Equivalent to 92 /8s, 219 /16s and 72 /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: 83510 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32541 Total APNIC prefixes after maximum aggregation: 7493 APNIC Deaggregation factor: 4.34 Prefixes being announced from the APNIC address blocks: 30975 Unique aggregates announced from the APNIC address blocks: 7590 APNIC Region origin ASes present in the Internet Routing Table: 1217 APNIC Prefixes per ASN: 25.45 APNIC Region origin ASes announcing only one prefix: 472 APNIC Region transit ASes present in the Internet Routing Table: 206 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: 556 Number of APNIC addresses announced to Internet: 166568300 Equivalent to 9 /8s, 237 /16s and 161 /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: 125855 Total ARIN prefixes after maximum aggregation: 65956 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 122955 Unique aggregates announced from the ARIN address blocks: 66320 ARIN Region origin ASes present in the Internet Routing Table: 9357 ARIN Prefixes per ASN: 13.14 ARIN Region origin ASes announcing only one prefix: 3917 ARIN Region transit ASes present in the Internet Routing Table: 874 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: 2192 Number of ARIN addresses announced to Internet: 961178081 Equivalent to 57 /8s, 74 /16s and 105 /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: 49548 Total RIPE prefixes after maximum aggregation: 26576 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 51290 Unique aggregates announced from the RIPE address blocks: 37236 RIPE Region origin ASes present in the Internet Routing Table: 4603 RIPE Prefixes per ASN: 11.14 RIPE Region origin ASes announcing only one prefix: 1951 RIPE Region transit ASes present in the Internet Routing Table: 692 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: 1886 Number of RIPE addresses announced to Internet: 285838416 Equivalent to 17 /8s, 9 /16s and 140 /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: 45155 Total LACNIC prefixes after maximum aggregation: 13436 LACNIC Deaggregation factor: 3.36 Prefixes being announced from the LACNIC address blocks: 44302 Unique aggregates announced from the LACNIC address blocks: 20019 LACNIC Region origin ASes present in the Internet Routing Table: 3519 LACNIC Prefixes per ASN: 12.59 LACNIC Region origin ASes announcing only one prefix: 1331 LACNIC Region transit ASes present in the Internet Routing Table: 719 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: 2694 Number of LACNIC addresses announced to Internet: 97431616 Equivalent to 5 /8s, 206 /16s and 176 /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: 10957 Total AfriNIC prefixes after maximum aggregation: 2368 AfriNIC Deaggregation factor: 4.63 Prefixes being announced from the AfriNIC address blocks: 14734 Unique aggregates announced from the AfriNIC address blocks: 4315 AfriNIC Region origin ASes present in the Internet Routing Table: 292 AfriNIC Prefixes per ASN: 50.46 AfriNIC Region origin ASes announcing only one prefix: 115 AfriNIC Region transit ASes present in the Internet Routing Table: 81 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: 155 Number of AfriNIC addresses announced to Internet: 46808832 Equivalent to 2 /8s, 202 /16s and 63 /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 13480 40824 5108 AMAZON-02, US 22773 3344 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3230 54783 2481 DNIC-AS-00749, US 4155 2750 209 1684 USDA-1, US 36352 2569 210 1131 AS-COLOCROSSING, US 367 2432 2909 1165 DNIC-ASBLK-00306-00371, US 7018 2074 22883 1527 ATT-INTERNET4, US 11776 1899 259 211 ATLANTICBB-JOHNSTOWN, US 6167 1876 3829 493 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 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 622 44 548 CDNEXT, GB 203214 581 43 379 HULUMTELE, IQ 8376 572 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 1980 369 64 Instituto Costarricense de Electricidad y 10620 1902 280 1293 Telmex Colombia S.A., CO 3816 1338 785 210 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1198 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 1025 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 597 126 167 Vodafone-, EG 36914 545 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 13480 40824 5108 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 3230 54783 2481 DNIC-AS-00749, US 4155 2750 209 1684 USDA-1, US 36352 2569 210 1131 AS-COLOCROSSING, US 367 2432 2909 1165 DNIC-ASBLK-00306-00371, US 7018 2074 22883 1527 ATT-INTERNET4, US 11830 1980 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 1980 1916 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1899 1688 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 /16:7642 /17:3429 /18:4227 /19:7646 /20:12461 /21:15273 /22:27494 /23:28001 /24:155841 /25:62 /26:82 /27:38 /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 2324 13480 AMAZON-02, US 11830 1684 1980 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 209 963 1660 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1899 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 2:472 3:775 4:5 5:800 6:156 7:5 8:683 11:171 12:994 13:378 14:115 15:302 16:247 17:6 18:890 20:183 21:4 22:188 23:2588 24:641 27:22 29:19 31:514 32:9 33:1 34:10 35:136 36:1769 37:979 38:1907 39:551 40:62 41:978 42:21 43:206 44:36 45:3613 46:962 47:92 49:20 50:363 51:386 52:1394 54:316 55:1098 56:11 57:19 58:16 59:30 60:16 61:73 62:542 63:755 64:1934 65:1092 66:1544 67:967 68:400 69:1112 70:415 71:201 72:731 74:948 75:323 76:247 77:486 78:349 79:234 80:310 81:385 82:732 83:233 84:337 85:419 86:233 87:211 88:291 89:876 90:104 91:929 92:635 93:479 94:945 95:684 96:289 97:60 98:454 99:178 100:35 101:39 102:360 103:1236 104:1621 105:214 106:3 107:1526 108:547 109:395 110:35 111:1920 112:485 113:39 114:40 115:23 116:62 117:1043 118:71 119:89 120:1245 121:44 122:65 123:78 124:57 125:25 128:496 129:393 130:699 131:905 132:560 133:211 134:494 135:113 136:606 137:504 138:923 139:433 140:699 141:458 142:1025 143:680 144:437 145:132 146:674 147:513 148:872 149:762 150:350 151:646 152:491 153:129 154:1701 155:862 156:1342 157:376 158:560 159:732 160:814 161:632 162:990 163:431 164:717 165:781 166:792 167:621 168:1114 169:156 170:1553 171:121 172:1376 173:848 174:250 175:59 176:785 177:920 178:508 179:714 180:46 181:1819 182:29 183:955 184:450 185:3513 186:2099 187:1467 188:839 189:1792 190:4222 191:451 192:5198 193:1874 194:1240 195:932 196:689 197:1561 198:2736 199:4915 200:3634 201:3271 202:1009 203:758 204:2150 205:1955 206:1543 207:1525 208:1430 209:1906 210:297 211:419 212:1036 213:781 214:978 215:42 216:2531 217:429 218:523 219:18 220:28 221:350 222:31 223:798 End of report