IPv4 R&E Routing Table Report 23:05 GMT Sun 02 Apr, 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: 909794 Prefixes after maximum aggregation (per Origin AS): 346016 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447412 Number of IPv4 prefixes with a valid ROA: 381955 Number of IPv4 prefixes with an invalid ROA: 1636 Number of IPv4 prefixes with no ROA: 526203 Total ASes present in the Internet Routing Table: 74085 Prefixes per ASN: 12.28 Origin-only ASes present in the Internet Routing Table: 63615 Origin ASes announcing only one prefix: 26161 Transit ASes present in the Internet Routing Table: 10470 Transit-only ASes present in the Internet Routing Table: 440 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: 1100 Number of instances of unregistered ASNs: 1100 Number of 32-bit ASNs allocated by the RIRs: 41586 Number of 32-bit ASNs visible in the Routing Table: 34344 Prefixes from 32-bit ASNs in the Routing Table: 168398 Number of bogon 32-bit ASNs visible in the Routing Table: 52 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 493 Number of addresses announced to Internet: 3061174016 Equivalent to 182 /8s, 117 /16s and 207 /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: 305938 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 236021 Total APNIC prefixes after maximum aggregation: 68225 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 230756 Unique aggregates announced from the APNIC address blocks: 97897 APNIC Region origin ASes present in the Internet Routing Table: 13286 APNIC Prefixes per ASN: 17.37 APNIC Region origin ASes announcing only one prefix: 3903 APNIC Region transit ASes present in the Internet Routing Table: 1795 Average APNIC Region AS path length visible: 4.2 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 8633 Number of APNIC addresses announced to Internet: 773123072 Equivalent to 46 /8s, 20 /16s and 236 /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: 267223 Total ARIN prefixes after maximum aggregation: 121363 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269539 Unique aggregates announced from the ARIN address blocks: 130398 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: 6968 ARIN Region transit ASes present in the Internet Routing Table: 1891 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: 4755 Number of ARIN addresses announced to Internet: 1285289984 Equivalent to 76 /8s, 155 /16s and 248 /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: 258676 Total RIPE prefixes after maximum aggregation: 121730 RIPE Deaggregation factor: 2.12 Prefixes being announced from the RIPE address blocks: 254710 Unique aggregates announced from the RIPE address blocks: 157445 RIPE Region origin ASes present in the Internet Routing Table: 28265 RIPE Prefixes per ASN: 9.01 RIPE Region origin ASes announcing only one prefix: 12030 RIPE Region transit ASes present in the Internet Routing Table: 3979 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: 11107 Number of RIPE addresses announced to Internet: 717990400 Equivalent to 42 /8s, 203 /16s and 170 /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: 117319 Total LACNIC prefixes after maximum aggregation: 28162 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116646 Unique aggregates announced from the LACNIC address blocks: 49072 LACNIC Region origin ASes present in the Internet Routing Table: 10967 LACNIC Prefixes per ASN: 10.64 LACNIC Region origin ASes announcing only one prefix: 2659 LACNIC Region transit ASes present in the Internet Routing Table: 2272 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: 8773 Number of LACNIC addresses announced to Internet: 176632832 Equivalent to 10 /8s, 135 /16s and 52 /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: 29455 Total AfriNIC prefixes after maximum aggregation: 5764 AfriNIC Deaggregation factor: 5.11 Prefixes being announced from the AfriNIC address blocks: 37650 Unique aggregates announced from the AfriNIC address blocks: 12203 AfriNIC Region origin ASes present in the Internet Routing Table: 1728 AfriNIC Prefixes per ASN: 21.79 AfriNIC Region origin ASes announcing only one prefix: 601 AfriNIC Region transit ASes present in the Internet Routing Table: 336 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: 1076 Number of AfriNIC addresses announced to Internet: 107780096 Equivalent to 6 /8s, 108 /16s and 152 /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 9497 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5750 786 688 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3686 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3546 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 8195 10776 2877 AMAZON-02, US 11492 4537 300 622 CABLEONE, US 7155 3965 279 48 VIASAT-SP-BACKBONE, US 22773 3612 3061 287 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3148 1579 2332 AKAMAI-AS, US 749 3035 50518 2302 DNIC-AS-00749, US 396982 2626 3588 360 GOOGLE-CLOUD-PLATFORM, US 7018 2573 24118 1581 ATT-INTERNET4, US 30036 2494 360 525 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 7263 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4054 3399 163 AKAMAI-ASN1, NL 8551 3889 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2896 2292 911 ROSTELECOM-AS, RU 9009 2673 252 1390 M247, RO 34984 2267 359 609 TELLCOM-AS, TR 6849 2135 307 18 UKRTELNET, UA 58224 1850 950 543 TCI, IR 13188 1606 100 26 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 11214 3344 582 Uninet S.A. de C.V., MX 10620 3499 506 850 Telmex Colombia S.A., CO 13999 2306 368 607 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 180 453 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 24863 1554 393 19 LINKdotNET-AS, EG 24835 1541 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1020 67 48 ORANGE-COTE-IVOIRE, CI 36935 880 520 42 Vodafone-, EG 6713 549 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 11214 3344 582 Uninet S.A. de C.V., MX 9808 9497 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8195 10776 2877 AMAZON-02, US 12479 7263 1705 149 UNI2-AS, ES 7545 5750 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 3965 279 48 VIASAT-SP-BACKBONE, US 8551 3889 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 9497 9449 CHINAMOBILE-CN China Mobile Communications Grou 12479 7263 7114 UNI2-AS, ES 16509 8195 5318 AMAZON-02, US 7545 5750 5062 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3965 3917 VIASAT-SP-BACKBONE, US 11492 4537 3915 CABLEONE, US 20940 4054 3891 AKAMAI-ASN1, NL 8551 3889 3852 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 7552 3686 3665 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 /15:2071 /16:13423 /17:8182 /18:13723 /19:24842 /20:43051 /21:51100 /22:108908 /23:97102 /24:545143 /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 6323 7263 UNI2-AS, ES 8151 5171 11214 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3445 4537 CABLEONE, US 8551 3361 3889 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3039 3965 VIASAT-SP-BACKBONE, US 22773 2677 3612 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2151 2494 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 2:1223 3:170 4:5 5:4481 6:121 7:6 8:1514 9:1 11:172 12:1575 13:393 14:2303 15:299 16:137 17:371 18:415 20:248 21:4 22:188 23:6147 24:2566 25:6 27:2495 29:19 31:2515 32:91 34:10 35:104 36:1926 37:4661 38:4375 39:805 40:151 41:3998 42:974 43:2315 44:309 45:16479 46:4226 47:369 49:1735 50:1821 51:571 52:1595 54:389 55:758 56:8 57:89 58:1682 59:1075 60:978 61:2469 62:2639 63:1930 64:5666 65:2314 66:4906 67:3010 68:1373 69:4138 70:1249 71:671 72:2967 74:2589 75:1463 76:608 77:2414 78:1847 79:3164 80:2101 81:1738 82:1483 83:1270 84:1513 85:3003 86:755 87:1985 88:1236 89:3620 90:617 91:7668 92:2039 93:2582 94:3600 95:3993 96:1327 97:336 98:1157 99:746 100:73 101:1300 102:2670 103:31167 104:4600 105:483 106:898 107:2552 108:1001 109:4395 110:2081 111:3188 112:2051 113:1496 114:1627 115:2018 116:1901 117:2566 118:2286 119:1968 120:1763 121:1046 122:2601 123:2134 124:1575 125:2485 128:1257 129:1053 130:994 131:1982 132:835 133:423 134:1898 135:301 136:870 137:936 138:2551 139:1541 140:1221 141:1453 142:1430 143:1491 144:1154 145:350 146:1923 147:1561 148:2313 149:1957 150:870 151:1152 152:1954 153:488 154:4266 155:1414 156:1709 157:1303 158:1043 159:2268 160:2542 161:1515 162:3525 163:1491 164:1588 165:1718 166:911 167:1729 168:3856 169:933 170:4606 171:877 172:3538 173:2931 174:1015 175:1160 176:3666 177:4600 178:3635 179:2146 180:2438 181:3425 182:3332 183:1932 184:2348 185:20162 186:4669 187:3930 188:4071 189:3534 190:9138 191:1432 192:10901 193:8830 194:7298 195:5136 196:3169 197:2376 198:5892 199:6072 200:7745 201:5860 202:10339 203:10190 204:4619 205:3528 206:3907 207:3383 208:4077 209:4862 210:4174 211:2403 212:4111 213:3530 214:1082 215:60 216:6618 217:2683 218:1270 219:411 220:1759 221:974 222:728 223:2150 End of report