IPv4 R&E Routing Table Report 20:15 GMT Fri 23 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: 264860 Prefixes after maximum aggregation (per Origin AS): 116320 Deaggregation factor: 2.28 Unique aggregates announced (without unneeded subnets): 135885 Number of IPv4 prefixes with a valid ROA: 119668 Number of IPv4 prefixes with an invalid ROA: 42 Number of IPv4 prefixes with no ROA: 145150 Total ASes present in the Internet Routing Table: 19848 Prefixes per ASN: 13.34 Origin-only ASes present in the Internet Routing Table: 17157 Origin ASes announcing only one prefix: 7801 Transit ASes present in the Internet Routing Table: 2691 Transit-only ASes present in the Internet Routing Table: 703 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: 314 Number of instances of unregistered ASNs: 318 Number of 32-bit ASNs allocated by the RIRs: 46499 Number of 32-bit ASNs visible in the Routing Table: 7509 Prefixes from 32-bit ASNs in the Routing Table: 28347 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: 117 Number of addresses announced to Internet: 1559917533 Equivalent to 92 /8s, 250 /16s and 115 /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: 83655 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32763 Total APNIC prefixes after maximum aggregation: 7569 APNIC Deaggregation factor: 4.33 Prefixes being announced from the APNIC address blocks: 31200 Unique aggregates announced from the APNIC address blocks: 7711 APNIC Region origin ASes present in the Internet Routing Table: 1228 APNIC Prefixes per ASN: 25.41 APNIC Region origin ASes announcing only one prefix: 482 APNIC Region transit ASes present in the Internet Routing Table: 207 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: 562 Number of APNIC addresses announced to Internet: 167732844 Equivalent to 9 /8s, 255 /16s and 102 /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: 125878 Total ARIN prefixes after maximum aggregation: 66014 ARIN Deaggregation factor: 1.91 Prefixes being announced from the ARIN address blocks: 122958 Unique aggregates announced from the ARIN address blocks: 66381 ARIN Region origin ASes present in the Internet Routing Table: 9364 ARIN Prefixes per ASN: 13.13 ARIN Region origin ASes announcing only one prefix: 3916 ARIN Region transit ASes present in the Internet Routing Table: 871 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: 961154785 Equivalent to 57 /8s, 74 /16s and 14 /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: 49692 Total RIPE prefixes after maximum aggregation: 26666 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 51411 Unique aggregates announced from the RIPE address blocks: 37291 RIPE Region origin ASes present in the Internet Routing Table: 4604 RIPE Prefixes per ASN: 11.17 RIPE Region origin ASes announcing only one prefix: 1949 RIPE Region transit ASes present in the Internet Routing Table: 690 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1894 Number of RIPE addresses announced to Internet: 286045776 Equivalent to 17 /8s, 12 /16s and 182 /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: 45263 Total LACNIC prefixes after maximum aggregation: 13446 LACNIC Deaggregation factor: 3.37 Prefixes being announced from the LACNIC address blocks: 44423 Unique aggregates announced from the LACNIC address blocks: 20022 LACNIC Region origin ASes present in the Internet Routing Table: 3533 LACNIC Prefixes per ASN: 12.57 LACNIC Region origin ASes announcing only one prefix: 1344 LACNIC Region transit ASes present in the Internet Routing Table: 721 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: 2705 Number of LACNIC addresses announced to Internet: 97456192 Equivalent to 5 /8s, 207 /16s and 16 /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: 10950 Total AfriNIC prefixes after maximum aggregation: 2412 AfriNIC Deaggregation factor: 4.54 Prefixes being announced from the AfriNIC address blocks: 14751 Unique aggregates announced from the AfriNIC address blocks: 4364 AfriNIC Region origin ASes present in the Internet Routing Table: 289 AfriNIC Prefixes per ASN: 51.04 AfriNIC Region origin ASes announcing only one prefix: 110 AfriNIC Region transit ASes present in the Internet Routing Table: 79 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: 154 Number of AfriNIC addresses announced to Internet: 47476736 Equivalent to 2 /8s, 212 /16s and 112 /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 10900 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 1487 192 53 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 522 852 139 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 13469 40824 5106 AMAZON-02, US 22773 3346 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2754 209 1689 USDA-1, US 36352 2570 211 1132 AS-COLOCROSSING, US 367 2438 2910 1170 DNIC-ASBLK-00306-00371, US 7018 2074 22883 1527 ATT-INTERNET4, US 11776 1898 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 689 77 411 TELLCOM-AS, TR 212238 622 44 548 CDNEXT, GB 203214 594 44 384 HULUMTELE, IQ 8376 574 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 983 UNINET, MX 11830 1990 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 1480 389 16 LINKdotNET-AS, EG 24835 1025 535 35 RAYA-AS, EG 20011 980 185 285 INTERNET-SOLUTIONS, ZA 29571 910 99 69 ORANGE-COTE-IVOIRE, CI 36992 603 1228 124 ETISALAT-MISR, EG 36935 597 126 167 Vodafone-, EG 36914 557 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 13469 40824 5106 AMAZON-02, US 9808 10900 8756 95 CHINAMOBILE-CN China Mobile Communication 8151 7441 2004 983 UNINET, MX 22773 3346 3015 164 ASN-CXA-ALL-CCI-22773-RDC, US 749 3231 54784 2482 DNIC-AS-00749, US 4155 2754 209 1689 USDA-1, US 36352 2570 211 1132 AS-COLOCROSSING, US 367 2438 2910 1170 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 10900 10805 CHINAMOBILE-CN China Mobile Communications Grou 8151 7441 6458 UNINET, MX 22773 3346 3182 ASN-CXA-ALL-CCI-22773-RDC, US 11830 1990 1926 Instituto Costarricense de Electricidad y Telec 39891 1936 1886 ALJAWWALSTC-AS, SA 11776 1898 1687 ATLANTICBB-JOHNSTOWN, US 56046 1849 1663 CMNET-JIANGSU-AP China Mobile communications co 56041 1586 1506 CMNET-ZHEJIANG-AP China Mobile communications c 24863 1480 1464 LINKdotNET-AS, EG 36352 2570 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 23.143.96.0/24 Origin: 15830 EQUINIX, NL 23.143.96.0/24 Transit: 2914 NTT-DATA-2914, 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 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 /16:7645 /17:3468 /18:4251 /19:7689 /20:12481 /21:15295 /22:27585 /23:28086 /24:156009 /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 3996 7441 UNINET, MX 22773 2499 3346 ASN-CXA-ALL-CCI-22773-RDC, US 16509 2330 13469 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 1045 2570 AS-COLOCROSSING, US 19901 983 1272 BRSPD-PUBLIC, US 209 964 1661 CENTURYLINK-US-LEGACY-QWEST, US 11776 883 1898 ATLANTICBB-JOHNSTOWN, US Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:20 2:477 3:778 4:5 5:801 6:156 7:5 8:681 11:171 12:993 13:374 14:116 15:301 16:247 17:6 18:888 20:183 21:4 22:188 23:2596 24:641 27:21 29:19 31:517 32:9 33:1 34:10 35:136 36:1768 37:986 38:1887 39:553 40:62 41:977 42:21 43:208 44:37 45:3622 46:962 47:92 49:20 50:364 51:386 52:1393 54:313 55:1060 56:11 57:18 58:16 59:30 60:16 61:73 62:543 63:753 64:1928 65:1096 66:1544 67:967 68:399 69:1110 70:415 71:201 72:734 74:941 75:324 76:248 77:486 78:348 79:234 80:310 81:371 82:719 83:234 84:337 85:427 86:233 87:207 88:291 89:866 90:104 91:928 92:625 93:481 94:946 95:688 96:289 97:60 98:456 99:178 100:35 101:39 102:355 103:1237 104:1624 105:214 106:16 107:1526 108:548 109:392 110:35 111:1966 112:485 113:39 114:40 115:23 116:62 117:1044 118:70 119:135 120:1245 121:44 122:65 123:78 124:57 125:26 128:496 129:393 130:698 131:916 132:547 133:211 134:497 135:113 136:611 137:505 138:919 139:433 140:700 141:460 142:1025 143:680 144:435 145:132 146:674 147:514 148:870 149:760 150:351 151:651 152:491 153:129 154:1698 155:863 156:1338 157:379 158:561 159:731 160:779 161:666 162:992 163:431 164:717 165:781 166:793 167:623 168:1111 169:156 170:1561 171:120 172:1378 173:848 174:250 175:63 176:786 177:906 178:509 179:718 180:46 181:1823 182:29 183:955 184:450 185:3521 186:2084 187:1462 188:838 189:1810 190:4224 191:453 192:5190 193:1874 194:1245 195:935 196:702 197:1574 198:2735 199:4921 200:3621 201:3275 202:1011 203:765 204:2148 205:1959 206:1537 207:1520 208:1433 209:1966 210:297 211:436 212:1041 213:783 214:980 215:42 216:2537 217:426 218:523 219:19 220:28 221:350 222:31 223:801 End of report