IPv4 R&E Routing Table Report 23:05 GMT Thu 30 Mar, 2023 IPv4 BGP Table (Global) as seen at Singapore. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Singapore/ Analysis Summary ---------------- BGP routing table entries examined: 909853 Prefixes after maximum aggregation (per Origin AS): 345999 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447294 Number of IPv4 prefixes with a valid ROA: 381867 Number of IPv4 prefixes with an invalid ROA: 1633 Number of IPv4 prefixes with no ROA: 526353 Total ASes present in the Internet Routing Table: 74079 Prefixes per ASN: 12.28 Origin-only ASes present in the Internet Routing Table: 63614 Origin ASes announcing only one prefix: 26164 Transit ASes present in the Internet Routing Table: 10465 Transit-only ASes present in the Internet Routing Table: 439 Paths with bogon ASNs present in the IPv4 Routing Table: 54 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 66 Max AS path prepend of ASN ( 37447) 64 Prefixes from unregistered ASNs in the Routing Table: 1125 Number of instances of unregistered ASNs: 1125 Number of 32-bit ASNs allocated by the RIRs: 41547 Number of 32-bit ASNs visible in the Routing Table: 34339 Prefixes from 32-bit ASNs in the Routing Table: 168555 Number of bogon 32-bit ASNs visible in the Routing Table: 56 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 486 Number of addresses announced to Internet: 3061303808 Equivalent to 182 /8s, 119 /16s and 202 /24s Percentage of available address space announced: 82.7 Percentage of allocated address space announced: 82.7 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: 305882 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236157 Total APNIC prefixes after maximum aggregation: 68341 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 230872 Unique aggregates announced from the APNIC address blocks: 97964 APNIC Region origin ASes present in the Internet Routing Table: 13299 APNIC Prefixes per ASN: 17.36 APNIC Region origin ASes announcing only one prefix: 3907 APNIC Region transit ASes present in the Internet Routing Table: 1784 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 39 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8649 Number of APNIC addresses announced to Internet: 773193728 Equivalent to 46 /8s, 22 /16s and 0 /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, 131072-151865 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: 267208 Total ARIN prefixes after maximum aggregation: 121272 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269572 Unique aggregates announced from the ARIN address blocks: 130348 ARIN Region origin ASes present in the Internet Routing Table: 19015 ARIN Prefixes per ASN: 14.18 ARIN Region origin ASes announcing only one prefix: 6977 ARIN Region transit ASes present in the Internet Routing Table: 1890 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 28 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4753 Number of ARIN addresses announced to Internet: 1285309952 Equivalent to 76 /8s, 156 /16s and 70 /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, 393216-401308 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, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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: 258535 Total RIPE prefixes after maximum aggregation: 121678 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254541 Unique aggregates announced from the RIPE address blocks: 157280 RIPE Region origin ASes present in the Internet Routing Table: 28251 RIPE Prefixes per ASN: 9.01 RIPE Region origin ASes announcing only one prefix: 12026 RIPE Region transit ASes present in the Internet Routing Table: 3981 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 32 Number of RIPE region 32-bit ASNs visible in the Routing Table: 11097 Number of RIPE addresses announced to Internet: 718046464 Equivalent to 42 /8s, 204 /16s and 133 /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 196608-213403 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 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: 117389 Total LACNIC prefixes after maximum aggregation: 28152 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116744 Unique aggregates announced from the LACNIC address blocks: 49081 LACNIC Region origin ASes present in the Internet Routing Table: 10961 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2654 LACNIC Region transit ASes present in the Internet Routing Table: 2278 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 49 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8761 Number of LACNIC addresses announced to Internet: 176625664 Equivalent to 10 /8s, 135 /16s and 24 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-273820 + 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: 29439 Total AfriNIC prefixes after maximum aggregation: 5783 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 37638 Unique aggregates announced from the AfriNIC address blocks: 12229 AfriNIC Region origin ASes present in the Internet Routing Table: 1731 AfriNIC Prefixes per ASN: 21.74 AfriNIC Region origin ASes announcing only one prefix: 600 AfriNIC Region transit ASes present in the Internet Routing Table: 337 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 66 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1079 Number of AfriNIC addresses announced to Internet: 107771648 Equivalent to 6 /8s, 108 /16s and 119 /24s AfriNIC AS Blocks 36864-37887, 327680-329727 & ERX transfers AfriNIC Address Blocks 41/8, 45/8, 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 9504 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5753 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3545 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3381 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2903 491 237 BBIL-AP BHARTI Airtel Ltd., IN 24560 2363 836 440 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd 4766 2308 11250 588 KIXS-AS-KR Korea Telecom, KR 4755 2170 439 213 TATACOMM-AS TATA Communications formerl 45090 2148 1438 79 TENCENT-NET-AP Shenzhen Tencent Compute Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 8178 10774 2876 AMAZON-02, US 11492 4537 300 622 CABLEONE, US 7155 3963 279 46 VIASAT-SP-BACKBONE, US 22773 3616 3062 291 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3147 1579 2331 AKAMAI-AS, US 749 3036 50520 2303 DNIC-AS-00749, US 396982 2626 3588 360 GOOGLE-CLOUD-PLATFORM, US 7018 2573 24118 1582 ATT-INTERNET4, US 30036 2501 360 499 MEDIACOM-ENTERPRISE-BUSINESS, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7258 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4054 3399 163 AKAMAI-ASN1, NL 8551 3887 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 911 ROSTELECOM-AS, RU 9009 2679 253 1395 M247, RO 34984 2269 359 610 TELLCOM-AS, TR 6849 2135 339 19 UKRTELNET, UA 58224 1850 950 543 TCI, IR 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11209 3344 582 Uninet S.A. de C.V., MX 10620 3499 506 850 Telmex Colombia S.A., CO 13999 2304 368 608 Mega Cable, S.A. de C.V., MX 11830 2265 369 64 Instituto Costarricense de Electricidad 28573 1331 2325 235 Claro NXT Telecomunicacoes Ltda, BR 3816 1303 767 159 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 6503 1299 339 514 Axtel, S.A.B. de C.V., MX 6147 1131 370 22 Telefonica del Peru S.A.A., PE 11664 1099 180 452 Techtel LMDS Comunicaciones Interactiva 26615 1030 2498 45 TIM SA, BR Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 1526 533 30 RAYA-AS, EG 24863 1524 393 19 LINKdotNET-AS, EG 36992 1341 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1017 67 48 ORANGE-COTE-IVOIRE, CI 36935 880 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 531 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 488 73 5 EthioNet-AS, ET Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 11209 3344 582 Uninet S.A. de C.V., MX 9808 9504 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8178 10774 2876 AMAZON-02, US 12479 7258 1705 149 UNI2-AS, ES 7545 5753 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4537 300 622 CABLEONE, US 20940 4054 3399 163 AKAMAI-ASN1, NL 7155 3963 279 46 VIASAT-SP-BACKBONE, US 8551 3887 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne Complete listing at https://bgp.nsrc.org/REN/Singapore/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 9504 9456 CHINAMOBILE-CN China Mobile Communications Grou 12479 7258 7109 UNI2-AS, ES 16509 8178 5302 AMAZON-02, US 7545 5753 5065 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3963 3917 VIASAT-SP-BACKBONE, US 11492 4537 3915 CABLEONE, US 20940 4054 3891 AKAMAI-ASN1, NL 8551 3887 3850 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3680 3659 VIETEL-AS-AP Viettel Group, VN Complete listing at https://bgp.nsrc.org/REN/Singapore/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 3507 UNALLOCATED 5.105.166.0/24 213035 AS-SERVERION Serverion B.V., 33123 UNALLOCATED 8.10.69.0/24 11168 SCC, US 12169 UNALLOCATED 8.15.207.0/24 32787 PROLEXIC-TECHNOLOGIES-DDOS-M 53775 UNALLOCATED 8.20.88.0/24 7029 WINDSTREAM, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 18798 UNALLOCATED 8.40.106.0/24 6461 ZAYO-6461, US Complete listing at https://bgp.nsrc.org/REN/Singapore/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.131.185.0/24 Origin: 174 COGENT-174, US 23.131.185.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.186.0/24 Origin: 174 COGENT-174, US 23.131.186.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.187.0/24 Origin: 174 COGENT-174, US 23.131.187.0/24 Transit: 2914 NTT-LTD-2914, US 23.131.188.0/24 Origin: 174 COGENT-174, US 23.131.188.0/24 Transit: 2914 NTT-LTD-2914, US 23.136.112.0/24 Origin: 54835 UNASSIGNED 23.136.112.0/24 Transit: 21559 OSNET, PR Complete listing at https://bgp.nsrc.org/REN/Singapore/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 /8:16 /9:13 /10:38 /11:103 /12:299 /13:575 /14:1196 /15:2072 /16:13432 /17:8177 /18:13718 /19:24844 /20:43074 /21:51094 /22:108870 /23:97297 /24:545026 /25:0 /26:1 /27:1 /28:0 /29:1 /30:6 /31:0 /32:0 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 6318 7258 UNI2-AS, ES 8151 5168 11209 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3445 4537 CABLEONE, US 8551 3359 3887 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3038 3963 VIASAT-SP-BACKBONE, US 22773 2677 3616 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2158 2501 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2053 3499 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Singapore/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1673 2:1224 3:170 4:5 5:4462 6:122 7:6 8:1517 9:1 11:172 12:1575 13:386 14:2306 15:296 16:137 17:371 18:412 20:248 21:4 22:188 23:6139 24:2565 25:6 27:2496 29:19 31:2516 32:94 34:10 35:104 36:1927 37:4658 38:4407 39:805 40:151 41:3995 42:975 43:2309 44:311 45:16477 46:4210 47:369 49:1735 50:1823 51:563 52:1590 54:389 55:762 56:8 57:90 58:1682 59:1076 60:978 61:2464 62:2636 63:1931 64:5664 65:2313 66:4907 67:3006 68:1368 69:4143 70:1249 71:671 72:2971 74:2590 75:1463 76:609 77:2426 78:1847 79:3166 80:2098 81:1734 82:1497 83:1273 84:1506 85:3004 86:754 87:1980 88:1230 89:3611 90:615 91:7673 92:2037 93:2572 94:3590 95:3983 96:1327 97:336 98:1158 99:746 100:73 101:1297 102:2678 103:31111 104:4599 105:483 106:898 107:2556 108:984 109:4377 110:2079 111:3192 112:2055 113:1495 114:1622 115:2016 116:1900 117:2553 118:2286 119:1970 120:1748 121:1046 122:2601 123:2136 124:1573 125:2485 128:1257 129:1056 130:997 131:1983 132:833 133:423 134:1898 135:300 136:863 137:939 138:2571 139:1539 140:1218 141:1450 142:1431 143:1495 144:1162 145:350 146:1921 147:1564 148:2312 149:1953 150:870 151:1152 152:1955 153:488 154:4260 155:1413 156:1693 157:1290 158:1044 159:2269 160:2537 161:1514 162:3529 163:1498 164:1591 165:1696 166:899 167:1731 168:3867 169:933 170:4613 171:878 172:3537 173:2934 174:1015 175:1158 176:3669 177:4614 178:3631 179:2155 180:2439 181:3420 182:3329 183:1935 184:2351 185:20134 186:4667 187:3938 188:4073 189:3560 190:9142 191:1439 192:10910 193:8827 194:7287 195:5146 196:3178 197:2387 198:5897 199:6075 200:7754 201:5878 202:10347 203:10195 204:4617 205:3536 206:3889 207:3386 208:4069 209:4860 210:4177 211:2403 212:4101 213:3533 214:1081 215:60 216:6609 217:2682 218:1270 219:411 220:1760 221:974 222:727 223:2150 End of report