IPv4 R&E Routing Table Report 23:05 GMT Mon 27 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: 909648 Prefixes after maximum aggregation (per Origin AS): 345956 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 447131 Number of IPv4 prefixes with a valid ROA: 381611 Number of IPv4 prefixes with an invalid ROA: 1635 Number of IPv4 prefixes with no ROA: 526402 Total ASes present in the Internet Routing Table: 74089 Prefixes per ASN: 12.28 Origin-only ASes present in the Internet Routing Table: 63642 Origin ASes announcing only one prefix: 26139 Transit ASes present in the Internet Routing Table: 10447 Transit-only ASes present in the Internet Routing Table: 437 Paths with bogon ASNs present in the IPv4 Routing Table: 55 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: 1097 Number of instances of unregistered ASNs: 1101 Number of 32-bit ASNs allocated by the RIRs: 41532 Number of 32-bit ASNs visible in the Routing Table: 34332 Prefixes from 32-bit ASNs in the Routing Table: 168311 Number of bogon 32-bit ASNs visible in the Routing Table: 69 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 505 Number of addresses announced to Internet: 3061584384 Equivalent to 182 /8s, 124 /16s and 18 /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: 305851 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 235992 Total APNIC prefixes after maximum aggregation: 68267 APNIC Deaggregation factor: 3.46 Prefixes being announced from the APNIC address blocks: 230707 Unique aggregates announced from the APNIC address blocks: 97923 APNIC Region origin ASes present in the Internet Routing Table: 13294 APNIC Prefixes per ASN: 17.35 APNIC Region origin ASes announcing only one prefix: 3891 APNIC Region transit ASes present in the Internet Routing Table: 1783 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: 8646 Number of APNIC addresses announced to Internet: 773022720 Equivalent to 46 /8s, 19 /16s and 100 /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: 267279 Total ARIN prefixes after maximum aggregation: 121386 ARIN Deaggregation factor: 2.20 Prefixes being announced from the ARIN address blocks: 269506 Unique aggregates announced from the ARIN address blocks: 130336 ARIN Region origin ASes present in the Internet Routing Table: 19014 ARIN Prefixes per ASN: 14.17 ARIN Region origin ASes announcing only one prefix: 6974 ARIN Region transit ASes present in the Internet Routing Table: 1887 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: 4751 Number of ARIN addresses announced to Internet: 1285344768 Equivalent to 76 /8s, 156 /16s and 206 /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: 258410 Total RIPE prefixes after maximum aggregation: 121575 RIPE Deaggregation factor: 2.13 Prefixes being announced from the RIPE address blocks: 254569 Unique aggregates announced from the RIPE address blocks: 157238 RIPE Region origin ASes present in the Internet Routing Table: 28275 RIPE Prefixes per ASN: 9.00 RIPE Region origin ASes announcing only one prefix: 12033 RIPE Region transit ASes present in the Internet Routing Table: 3980 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: 718117376 Equivalent to 42 /8s, 205 /16s and 154 /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: 117360 Total LACNIC prefixes after maximum aggregation: 28146 LACNIC Deaggregation factor: 4.17 Prefixes being announced from the LACNIC address blocks: 116677 Unique aggregates announced from the LACNIC address blocks: 49002 LACNIC Region origin ASes present in the Internet Routing Table: 10958 LACNIC Prefixes per ASN: 10.65 LACNIC Region origin ASes announcing only one prefix: 2644 LACNIC Region transit ASes present in the Internet Routing Table: 2276 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: 8763 Number of LACNIC addresses announced to Internet: 176572160 Equivalent to 10 /8s, 134 /16s and 71 /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: 29510 Total AfriNIC prefixes after maximum aggregation: 5801 AfriNIC Deaggregation factor: 5.09 Prefixes being announced from the AfriNIC address blocks: 37684 Unique aggregates announced from the AfriNIC address blocks: 12226 AfriNIC Region origin ASes present in the Internet Routing Table: 1729 AfriNIC Prefixes per ASN: 21.80 AfriNIC Region origin ASes announcing only one prefix: 597 AfriNIC Region transit ASes present in the Internet Routing Table: 334 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: 1075 Number of AfriNIC addresses announced to Internet: 108142848 Equivalent to 6 /8s, 114 /16s and 33 /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 9501 8883 48 CHINAMOBILE-CN China Mobile Communicati 7545 5752 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3680 1331 21 VIETEL-AS-AP Viettel Group, VN 7713 3544 1043 65 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3383 1872 94 VNPT-AS-VN VNPT Corp, VN 9498 2864 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 2169 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 8142 10768 2888 AMAZON-02, US 11492 4534 300 620 CABLEONE, US 7155 3962 279 45 VIASAT-SP-BACKBONE, US 22773 3614 3062 290 ASN-CXA-ALL-CCI-22773-RDC, US 6327 3514 1320 64 SHAW, CA 16625 3151 1585 2334 AKAMAI-AS, US 749 3037 50520 2304 DNIC-AS-00749, US 396982 2625 3588 360 GOOGLE-CLOUD-PLATFORM, US 7018 2558 24117 1566 ATT-INTERNET4, US 30036 2501 360 497 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 7185 1705 149 UNI2-AS, ES 39891 4833 286 59 ALJAWWALSTC-AS, SA 20940 4043 3399 163 AKAMAI-ASN1, NL 8551 3889 370 37 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 12389 2897 2292 911 ROSTELECOM-AS, RU 9009 2672 253 1397 M247, RO 34984 2267 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 11204 3341 579 Uninet S.A. de C.V., MX 10620 3498 506 850 Telmex Colombia S.A., CO 13999 2297 367 611 Mega Cable, S.A. de C.V., MX 11830 2264 369 64 Instituto Costarricense de Electricidad 28573 1329 2324 245 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 1098 180 456 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 1570 393 19 LINKdotNET-AS, EG 24835 1542 533 30 RAYA-AS, EG 36992 1343 1518 275 ETISALAT-MISR, EG 36903 1242 550 99 MT-MPLS, MA 29571 1018 67 53 ORANGE-COTE-IVOIRE, CI 36935 880 520 42 Vodafone-, EG 6713 550 1861 34 IAM-AS, MA 15399 529 54 47 WANANCHI-, KE 37342 493 32 1 MOVITEL, MZ 24757 487 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 11204 3341 579 Uninet S.A. de C.V., MX 9808 9501 8883 48 CHINAMOBILE-CN China Mobile Communicati 16509 8142 10768 2888 AMAZON-02, US 12479 7185 1705 149 UNI2-AS, ES 7545 5752 786 690 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 286 59 ALJAWWALSTC-AS, SA 11492 4534 300 620 CABLEONE, US 20940 4043 3399 163 AKAMAI-ASN1, NL 7155 3962 279 45 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 9501 9453 CHINAMOBILE-CN China Mobile Communications Grou 12479 7185 7036 UNI2-AS, ES 16509 8142 5254 AMAZON-02, US 7545 5752 5062 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4833 4774 ALJAWWALSTC-AS, SA 7155 3962 3917 VIASAT-SP-BACKBONE, US 11492 4534 3914 CABLEONE, US 20940 4043 3880 AKAMAI-ASN1, NL 8551 3889 3852 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 /15:2073 /16:13438 /17:8186 /18:13721 /19:24854 /20:43073 /21:51088 /22:108919 /23:97224 /24:544823 /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 6243 7185 UNI2-AS, ES 8151 5161 11204 Uninet S.A. de C.V., MX 39891 3632 4833 ALJAWWALSTC-AS, SA 11492 3442 4534 CABLEONE, US 8551 3361 3889 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 6327 3323 3514 SHAW, CA 7155 3037 3962 VIASAT-SP-BACKBONE, US 22773 2674 3614 ASN-CXA-ALL-CCI-22773-RDC, US 30036 2158 2501 MEDIACOM-ENTERPRISE-BUSINESS, US 10620 2052 3498 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) ---------------------------------------------- 1:1671 2:1218 3:170 4:5 5:4457 6:121 7:6 8:1518 9:1 11:172 12:1578 13:394 14:2307 15:296 16:136 17:367 18:400 20:248 21:4 22:188 23:6137 24:2596 25:6 27:2501 29:19 31:2522 32:95 34:10 35:104 36:1924 37:4647 38:4386 39:805 40:151 41:4010 42:974 43:2301 44:309 45:16461 46:4221 47:369 49:1734 50:1825 51:570 52:1587 54:389 55:766 56:8 57:91 58:1682 59:1077 60:972 61:2462 62:2645 63:1930 64:5664 65:2311 66:4911 67:3012 68:1368 69:4168 70:1249 71:669 72:2968 74:2589 75:1463 76:605 77:2431 78:1845 79:3157 80:2087 81:1733 82:1495 83:1267 84:1516 85:3003 86:741 87:1969 88:1225 89:3599 90:612 91:7678 92:2034 93:2577 94:3593 95:3974 96:1329 97:336 98:1158 99:746 100:73 101:1298 102:2660 103:31115 104:4592 105:483 106:898 107:2560 108:984 109:4399 110:2078 111:3194 112:2050 113:1489 114:1627 115:2018 116:1904 117:2554 118:2283 119:1968 120:1738 121:1048 122:2590 123:2135 124:1577 125:2446 128:1258 129:1056 130:999 131:1992 132:834 133:421 134:1897 135:300 136:862 137:936 138:2553 139:1522 140:1215 141:1472 142:1431 143:1496 144:1163 145:356 146:1927 147:1565 148:2311 149:1949 150:871 151:1152 152:1954 153:484 154:4252 155:1415 156:1687 157:1289 158:1041 159:2270 160:2533 161:1514 162:3534 163:1499 164:1581 165:1695 166:888 167:1735 168:3854 169:929 170:4599 171:880 172:3535 173:2930 174:1014 175:1161 176:3666 177:4603 178:3637 179:2160 180:2430 181:3419 182:3325 183:1935 184:2347 185:20152 186:4685 187:3938 188:4060 189:3575 190:9130 191:1449 192:10923 193:8835 194:7277 195:5149 196:3181 197:2388 198:5888 199:6081 200:7750 201:5868 202:10323 203:10187 204:4611 205:3533 206:3879 207:3393 208:4069 209:4854 210:4174 211:2403 212:4111 213:3522 214:1082 215:60 216:6613 217:2685 218:1270 219:410 220:1757 221:973 222:726 223:2140 End of report