IPv4 R&E Routing Table Report 20:30 GMT Wed 14 May, 2025 IPv4 BGP Table (R&E) as seen at PREGINET. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/PREGINET/ Analysis Summary ---------------- BGP routing table entries examined: 158069 Prefixes after maximum aggregation (per Origin AS): 62486 Deaggregation factor: 2.53 Unique aggregates announced (without unneeded subnets): 88812 Number of IPv4 prefixes with a valid ROA: 86348 Number of IPv4 prefixes with an invalid ROA: 75 Number of IPv4 prefixes with no ROA: 71646 Total ASes present in the Internet Routing Table: 14615 Prefixes per ASN: 10.82 Origin-only ASes present in the Internet Routing Table: 12351 Origin ASes announcing only one prefix: 6034 Transit ASes present in the Internet Routing Table: 2264 Transit-only ASes present in the Internet Routing Table: 525 Paths with bogon ASNs present in the IPv4 Routing Table: 1 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 45 Max AS path prepend of ASN (212940) 40 Prefixes from unregistered ASNs in the Routing Table: 77 Number of instances of unregistered ASNs: 77 Number of 32-bit ASNs allocated by the RIRs: 46395 Number of 32-bit ASNs visible in the Routing Table: 7265 Prefixes from 32-bit ASNs in the Routing Table: 29064 Number of bogon 32-bit ASNs visible in the Routing Table: 2 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 62 Number of addresses announced to Internet: 504107776 Equivalent to 30 /8s, 12 /16s and 19 /24s Percentage of available address space announced: 13.6 Percentage of allocated address space announced: 13.6 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: 38070 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 79143 Total APNIC prefixes after maximum aggregation: 25149 APNIC Deaggregation factor: 3.15 Prefixes being announced from the APNIC address blocks: 76779 Unique aggregates announced from the APNIC address blocks: 36847 APNIC Region origin ASes present in the Internet Routing Table: 5077 APNIC Prefixes per ASN: 15.12 APNIC Region origin ASes announcing only one prefix: 1950 APNIC Region transit ASes present in the Internet Routing Table: 747 Average APNIC Region AS path length visible: 7.3 Max APNIC Region AS path length visible: 37 Number of APNIC region 32-bit ASNs visible in the Routing Table: 3280 Number of APNIC addresses announced to Internet: 188925696 Equivalent to 11 /8s, 66 /16s and 199 /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: 26322 Total ARIN prefixes after maximum aggregation: 14378 ARIN Deaggregation factor: 1.83 Prefixes being announced from the ARIN address blocks: 25852 Unique aggregates announced from the ARIN address blocks: 19908 ARIN Region origin ASes present in the Internet Routing Table: 2086 ARIN Prefixes per ASN: 12.39 ARIN Region origin ASes announcing only one prefix: 997 ARIN Region transit ASes present in the Internet Routing Table: 220 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 455 Number of ARIN addresses announced to Internet: 166883328 Equivalent to 9 /8s, 242 /16s and 112 /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: 39120 Total RIPE prefixes after maximum aggregation: 18165 RIPE Deaggregation factor: 2.15 Prefixes being announced from the RIPE address blocks: 40044 Unique aggregates announced from the RIPE address blocks: 24880 RIPE Region origin ASes present in the Internet Routing Table: 4569 RIPE Prefixes per ASN: 8.76 RIPE Region origin ASes announcing only one prefix: 2111 RIPE Region transit ASes present in the Internet Routing Table: 665 Average RIPE Region AS path length visible: 6.2 Max RIPE Region AS path length visible: 45 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1596 Number of RIPE addresses announced to Internet: 124613632 Equivalent to 7 /8s, 109 /16s and 116 /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: 11872 Total LACNIC prefixes after maximum aggregation: 4366 LACNIC Deaggregation factor: 2.72 Prefixes being announced from the LACNIC address blocks: 11302 Unique aggregates announced from the LACNIC address blocks: 5583 LACNIC Region origin ASes present in the Internet Routing Table: 2238 LACNIC Prefixes per ASN: 5.05 LACNIC Region origin ASes announcing only one prefix: 939 LACNIC Region transit ASes present in the Internet Routing Table: 490 Average LACNIC Region AS path length visible: 7.5 Max LACNIC Region AS path length visible: 28 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 1884 Number of LACNIC addresses announced to Internet: 17820416 Equivalent to 1 /8s, 15 /16s and 235 /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: 1535 Total AfriNIC prefixes after maximum aggregation: 371 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 4030 Unique aggregates announced from the AfriNIC address blocks: 1564 AfriNIC Region origin ASes present in the Internet Routing Table: 97 AfriNIC Prefixes per ASN: 41.55 AfriNIC Region origin ASes announcing only one prefix: 37 AfriNIC Region transit ASes present in the Internet Routing Table: 31 Average AfriNIC Region AS path length visible: 7.1 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 50 Number of AfriNIC addresses announced to Internet: 5834752 Equivalent to 0 /8s, 89 /16s and 8 /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 10742 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4216 500 292 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 7552 2135 1078 453 VIETEL-AS-AP Viettel Group, VN 4766 2017 6034 953 KIXS-AS-KR Korea Telecom, KR 45609 1853 828 322 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. 56046 1772 812 180 CMNET-JIANGSU-AP China Mobile communicati 56041 1575 725 74 CMNET-ZHEJIANG-AP China Mobile communicat 56047 1485 192 53 CMNET-HUNAN-AP China Mobile communication 9919 968 170 64 NCIC-TW New Century InfoComm Tech Co., Lt Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 30036 2403 333 698 MEDIACOM-ENTERPRISE-BUSINESS, US 20115 2235 3096 513 CHARTER-20115, US 16509 2234 3628 1278 AMAZON-02, US 11492 1926 134 1045 CABLEONE, US 714 1233 4391 8 APPLE-ENGINEERING, US 8075 756 16021 638 MICROSOFT-CORP-MSN-AS-BLOCK, US 10796 639 1912 301 TWC-10796-MIDWEST, US 12083 580 192 88 WOW-INTERNET, US 2152 396 44 265 CENIC-2152, US 33363 386 1422 213 BHN-33363, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 39891 4179 255 52 ALJAWWALSTC-AS, SA 12389 2305 1999 780 ROSTELECOM-AS PJSC Rostelecom. Technical 25019 918 639 330 SAUDINETSTC-AS, SA 49505 860 92 356 SELECTEL, RU 9123 632 40 282 TIMEWEB-AS, RU 50010 616 76 11 NAWRAS-AS Sultanate of Oman, OM 9198 482 188 175 KAZTELECOM-AS, KZ 9155 427 37 9 QNET Kuwait, KW 21299 424 78 61 KAR-TEL-AS Almaty, Republic of Kazakhstan 42772 373 63 104 A1-BY-AS, BY Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1518 572 222 UNINET, MX 7738 577 1719 61 V tal, BR 8167 342 1089 44 V tal, BR 1916 242 177 40 Rede Nacional de Ensino e Pesquisa, BR 28201 219 16 28 Companhia Itabirana Telecomunicacoes Ltda 28391 159 10 71 Universidad Juarez Autonoma de Tabasco, M 271640 129 8 1 UNIVERSIDADE FEDERAL DE VICOSA, BR 11014 127 10 26 CPS, AR 11340 110 25 52 Red Universitaria Nacional, CL 19089 107 18 45 Scala Data Centers, BR Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 36914 550 82 3 KENET-AS, KE 2018 373 318 69 TENET-1, ZA 30999 74 25 32 EMTEL-AS-AP, MU 15399 71 6 26 WANANCHI-, KE 23889 49 27 29 MauritiusTelecom, MU 8094 47 48 18 PUKNET, ZA 37215 36 8 1 MAREN, MW 10798 29 2 23 SBICSA, ZA 6879 24 2 9 ENSTINET-, EG 327885 20 4 3 Viettel-Tanzania, TZ Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 9808 10742 8756 95 CHINAMOBILE-CN China Mobile Communication 9498 4216 500 292 BBIL-AP BHARTI Airtel Ltd., IN 39891 4179 255 52 ALJAWWALSTC-AS, SA 24560 2865 852 534 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., 30036 2403 333 698 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 2305 1999 780 ROSTELECOM-AS PJSC Rostelecom. Technical 20115 2235 3096 513 CHARTER-20115, US 16509 2234 3628 1278 AMAZON-02, US 7552 2135 1078 453 VIETEL-AS-AP Viettel Group, VN 4766 2017 6034 953 KIXS-AS-KR Korea Telecom, KR Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 39891 4179 4127 ALJAWWALSTC-AS, SA 9498 4216 3924 BBIL-AP BHARTI Airtel Ltd., IN 24560 2865 2331 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telem 20115 2235 1722 CHARTER-20115, US 30036 2403 1705 MEDIACOM-ENTERPRISE-BUSINESS, US 7552 2135 1682 VIETEL-AS-AP Viettel Group, VN 56046 1772 1592 CMNET-JIANGSU-AP China Mobile communications co 45609 1853 1531 BHARTI-MOBILITY-AS-AP Bharti Airtel Ltd. AS for 12389 2305 1525 ROSTELECOM-AS PJSC Rostelecom. Technical Team, 56041 1575 1501 CMNET-ZHEJIANG-AP China Mobile communications c Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 393377 UNALLOCATED 12.195.116.0/24 40264 TWC-40264-WI-MN-UPPERMI 202528 UNALLOCATED 23.143.136.0/24 153371 BACKWAVESLIMITED-AS-AP 46123 UNALLOCATED 24.73.234.0/24 33363 BHN-33363, US 53771 UNALLOCATED 24.172.253.0/24 11426 TWC-11426-CAROLINAS, US 53657 UNALLOCATED 24.213.247.0/24 11351 TWC-11351-NORTHEAST, US 11835 UNALLOCATED 45.4.236.0/22 14868 Ligga Telecomunicacoes 268652 UNALLOCATED 45.165.20.0/22 264493 UNASSIGNED 40186 UNALLOCATED 64.135.35.0/24 13335 CLOUDFLARENET, US 396324 UNALLOCATED 66.57.112.0/24 11426 TWC-11426-CAROLINAS, US Complete listing at https://bgp.nsrc.org/REN/PREGINET/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/PREGINET/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 103.5.136.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.5.136.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.6.224.0/22 Origin: 4686 BEKKOAME BEKKOAME INTERNET INC., JP 103.6.224.0/22 Transit: 10013 FBDC FreeBit Co.,Ltd., JP 103.8.106.0/24 Origin: 135391 AOFEI-HK AOFEI DATA INTERNATIONAL COMPAN 103.8.106.0/24 Transit: 55888 NINTATSU Nintatsu Global Telecommunicati 103.12.68.0/22 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/22 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, HK 103.12.68.0/24 Origin: 152194 CTGSERVERLIMITED-AS-AP CTG Server Limite 103.12.68.0/24 Transit: 17476 CHL-AS-AP CloudRadium HK Limited, HK Complete listing at https://bgp.nsrc.org/REN/PREGINET/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 /8:1 /9:2 /10:13 /11:13 /12:47 /13:82 /14:167 /15:396 /16:2475 /17:1328 /18:2797 /19:4369 /20:7588 /21:9321 /22:17283 /23:16340 /24:95846 /25:1 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 39891 3321 4179 ALJAWWALSTC-AS, SA 30036 2087 2403 MEDIACOM-ENTERPRISE-BUSINESS, US 12389 1400 2305 ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU 11492 1326 1926 CABLEONE, US 8151 882 1518 UNINET, MX 49505 596 860 SELECTEL, RU 20115 552 2235 CHARTER-20115, US 36914 526 550 KENET-AS, KE 9123 514 632 TIMEWEB-AS, RU 50010 514 616 NAWRAS-AS Sultanate of Oman, OM Complete listing at https://bgp.nsrc.org/REN/PREGINET/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:163 2:325 3:103 5:1094 8:71 12:81 13:89 14:386 15:58 16:63 17:321 18:74 20:28 23:712 24:593 25:2 27:623 31:529 32:2 34:3 35:37 36:1737 37:631 38:501 39:703 40:1 41:246 42:135 43:674 44:23 45:2323 46:785 47:64 49:256 50:318 51:138 52:258 54:62 57:28 58:299 59:434 60:95 61:780 62:539 63:115 64:349 65:279 66:269 67:291 68:67 69:255 70:32 71:84 72:229 74:192 75:66 76:62 77:482 78:449 79:233 80:223 81:342 82:348 83:187 84:185 85:369 86:113 87:306 88:100 89:461 90:133 91:1387 92:441 93:926 94:780 95:1452 96:266 97:146 98:68 99:47 101:460 102:121 103:8039 104:353 105:9 106:292 107:108 108:146 109:469 110:220 111:2155 112:945 113:299 114:824 115:299 116:411 117:1400 118:339 119:244 120:1288 121:409 122:1714 123:389 124:327 125:1585 126:6 128:383 129:66 130:125 131:213 132:53 133:303 134:163 135:24 136:79 137:166 138:324 139:224 140:317 141:176 142:76 143:153 144:124 145:136 146:371 147:255 148:353 149:176 150:227 151:510 152:455 153:37 154:884 155:435 156:439 157:290 158:127 159:357 160:893 161:115 162:228 163:301 164:142 165:218 166:44 167:177 168:590 169:69 170:460 171:191 172:211 173:972 174:119 175:552 176:724 177:463 178:680 179:180 180:471 181:140 182:1610 183:1125 184:134 185:2194 186:223 187:443 188:591 189:261 190:467 191:85 192:1844 193:1116 194:894 195:758 196:299 197:368 198:696 199:489 200:769 201:468 202:2471 203:2188 204:272 205:225 206:282 207:317 208:236 209:263 210:1459 211:1152 212:743 213:519 214:2 216:339 217:528 218:803 219:63 220:568 221:395 222:134 223:1120 End of report