This is an automated weekly mailing describing the state of the Global IPv4 Research & Education Routing Table received by NSRC's collector from Internet2's network. Daily listings are sent to ren-bgp-stats-all@lists.nsrc.org. For historical data, please see https://bgp.nsrc.org. If you have any comments please contact Philip Smith . Global R&E Routing Table Report 23:00 GMT Sat 25 Dec, 2021 BGP Table (Global) as seen at London. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/London/ Analysis Summary ---------------- BGP routing table entries examined: 868263 Prefixes after maximum aggregation (per Origin AS): 330049 Deaggregation factor: 2.63 Unique aggregates announced (without unneeded subnets): 424196 Total ASes present in the Internet Routing Table: 72292 Prefixes per ASN: 12.01 Origin-only ASes present in the Internet Routing Table: 62077 Origin ASes announcing only one prefix: 25629 Transit ASes present in the Internet Routing Table: 10215 Transit-only ASes present in the Internet Routing Table: 368 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 54 Max AS path prepend of ASN (265020) 50 Prefixes from unregistered ASNs in the Routing Table: 890 Number of instances of unregistered ASNs: 893 Number of 32-bit ASNs allocated by the RIRs: 38184 Number of 32-bit ASNs visible in the Routing Table: 31637 Prefixes from 32-bit ASNs in the Routing Table: 146720 Number of bogon 32-bit ASNs visible in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 716 Number of addresses announced to Internet: 3072227072 Equivalent to 183 /8s, 30 /16s and 119 /24s Percentage of available address space announced: 83.0 Percentage of allocated address space announced: 83.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 99.5 Total number of prefixes smaller than registry allocations: 290879 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 226032 Total APNIC prefixes after maximum aggregation: 64591 APNIC Deaggregation factor: 3.50 Prefixes being announced from the APNIC address blocks: 220905 Unique aggregates announced from the APNIC address blocks: 93431 APNIC Region origin ASes present in the Internet Routing Table: 12101 APNIC Prefixes per ASN: 18.26 APNIC Region origin ASes announcing only one prefix: 3435 APNIC Region transit ASes present in the Internet Routing Table: 1678 Average APNIC Region AS path length visible: 4.1 Max APNIC Region AS path length visible: 35 Number of APNIC region 32-bit ASNs visible in the Routing Table: 7354 Number of APNIC addresses announced to Internet: 772710912 Equivalent to 46 /8s, 14 /16s and 162 /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: 255956 Total ARIN prefixes after maximum aggregation: 118014 ARIN Deaggregation factor: 2.17 Prefixes being announced from the ARIN address blocks: 255452 Unique aggregates announced from the ARIN address blocks: 122408 ARIN Region origin ASes present in the Internet Routing Table: 18849 ARIN Prefixes per ASN: 13.55 ARIN Region origin ASes announcing only one prefix: 6852 ARIN Region transit ASes present in the Internet Routing Table: 1889 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 35 Number of ARIN region 32-bit ASNs visible in the Routing Table: 4245 Number of ARIN addresses announced to Internet: 1300831488 Equivalent to 77 /8s, 137 /16s and 29 /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: 244517 Total RIPE prefixes after maximum aggregation: 114441 RIPE Deaggregation factor: 2.14 Prefixes being announced from the RIPE address blocks: 241022 Unique aggregates announced from the RIPE address blocks: 148284 RIPE Region origin ASes present in the Internet Routing Table: 28159 RIPE Prefixes per ASN: 8.56 RIPE Region origin ASes announcing only one prefix: 12149 RIPE Region transit ASes present in the Internet Routing Table: 3966 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 35 Number of RIPE region 32-bit ASNs visible in the Routing Table: 10579 Number of RIPE addresses announced to Internet: 713633536 Equivalent to 42 /8s, 137 /16s and 47 /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: 113285 Total LACNIC prefixes after maximum aggregation: 27067 LACNIC Deaggregation factor: 4.19 Prefixes being announced from the LACNIC address blocks: 114084 Unique aggregates announced from the LACNIC address blocks: 47767 LACNIC Region origin ASes present in the Internet Routing Table: 10861 LACNIC Prefixes per ASN: 10.50 LACNIC Region origin ASes announcing only one prefix: 2644 LACNIC Region transit ASes present in the Internet Routing Table: 2185 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 54 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 8547 Number of LACNIC addresses announced to Internet: 176226304 Equivalent to 10 /8s, 129 /16s and 0 /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: 27583 Total AfriNIC prefixes after maximum aggregation: 5277 AfriNIC Deaggregation factor: 5.23 Prefixes being announced from the AfriNIC address blocks: 36084 Unique aggregates announced from the AfriNIC address blocks: 11661 AfriNIC Region origin ASes present in the Internet Routing Table: 1581 AfriNIC Prefixes per ASN: 22.82 AfriNIC Region origin ASes announcing only one prefix: 549 AfriNIC Region transit ASes present in the Internet Routing Table: 310 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 912 Number of AfriNIC addresses announced to Internet: 108376576 Equivalent to 6 /8s, 117 /16s and 178 /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 8719 8999 54 CHINAMOBILE-CN China Mobile Communicati 7545 5835 787 678 TPG-INTERNET-AP TPG Telecom Limited, AU 7552 3601 1330 19 VIETEL-AS-AP Viettel Group, VN 7713 3480 1038 51 TELKOMNET-AS-AP PT Telekomunikasi Indon 45899 3245 1880 58 VNPT-AS-VN VNPT Corp, VN 4766 2233 11117 571 KIXS-AS-KR Korea Telecom, KR 9498 2211 475 235 BBIL-AP BHARTI Airtel Ltd., IN 4755 2122 429 203 TATACOMM-AS TATA Communications formerl 45090 2103 1198 75 TENCENT-NET-AP Shenzhen Tencent Compute 24560 2001 840 368 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 6054 10130 2597 AMAZON-02, US 11492 4580 303 821 CABLEONE, US 22773 4034 3040 386 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3948 264 28 VIASAT-SP-BACKBONE, US 16625 3654 1885 2555 AKAMAI-AS, US 6327 3391 1319 65 SHAW, CA 749 2890 50784 2146 DNIC-AS-00749, US 30036 2603 374 146 MEDIACOM-ENTERPRISE-BUSINESS, US 209 2525 5043 433 CENTURYLINK-US-LEGACY-QWEST, US 20115 2241 3033 501 CHARTER-20115, US Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 6839 1733 150 UNI2-AS, ES 20940 3853 3359 190 AKAMAI-ASN1, NL 8551 3559 378 39 BEZEQ-INTERNATIONAL-AS Bezeqint Interne 39891 3271 187 23 ALJAWWALSTC-AS, SA 12389 2898 2284 901 ROSTELECOM-AS, RU 9009 2528 260 1344 M247, GB 34984 2205 355 600 TELLCOM-AS, TR 58224 1772 922 577 TCI, IR 13188 1609 100 27 TRIOLAN, UA 61317 1603 213 917 ASDETUK www.heficed.com, GB Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10579 3451 585 Uninet S.A. de C.V., MX 10620 3263 491 836 Telmex Colombia S.A., CO 11830 2466 369 62 Instituto Costarricense de Electricidad 13999 1639 283 462 Mega Cable, S.A. de C.V., MX 6503 1441 355 523 Axtel, S.A.B. de C.V., MX 28573 1377 2324 256 CLARO S.A., BR 3816 1243 657 147 COLOMBIA TELECOMUNICACIONES S.A. ESP, C 26615 1140 2350 138 TIM SA, BR 6147 1090 369 21 Telefonica del Peru S.A.A., PE 11664 994 191 443 Techtel LMDS Comunicaciones Interactiva Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24863 1629 393 21 LINKdotNET-AS, EG 24835 1548 499 32 RAYA-AS, EG 36992 1294 1462 268 ETISALAT-MISR, EG 36903 1195 543 114 MT-MPLS, MA 29571 852 68 11 ORANGE-COTE-IVOIRE, CI 36935 685 521 39 Vodafone-, EG 6713 612 1863 34 IAM-AS, MA 15399 517 50 33 WANANCHI-, KE 37342 470 32 1 MOVITEL, MZ 23889 424 232 16 MauritiusTelecom, MU Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 10579 3451 585 Uninet S.A. de C.V., MX 9808 8719 8999 54 CHINAMOBILE-CN China Mobile Communicati 12479 6839 1733 150 UNI2-AS, ES 16509 6054 10130 2597 AMAZON-02, US 7545 5835 787 678 TPG-INTERNET-AP TPG Telecom Limited, AU 11492 4580 303 821 CABLEONE, US 22773 4034 3040 386 ASN-CXA-ALL-CCI-22773-RDC, US 7155 3948 264 28 VIASAT-SP-BACKBONE, US 20940 3853 3359 190 AKAMAI-ASN1, NL 16625 3654 1885 2555 AKAMAI-AS, US Complete listing at https://bgp.nsrc.org/REN/London/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 8719 8665 CHINAMOBILE-CN China Mobile Communications Grou 12479 6839 6689 UNI2-AS, ES 7545 5835 5157 TPG-INTERNET-AP TPG Telecom Limited, AU 7155 3948 3920 VIASAT-SP-BACKBONE, US 11492 4580 3759 CABLEONE, US 20940 3853 3663 AKAMAI-ASN1, NL 22773 4034 3648 ASN-CXA-ALL-CCI-22773-RDC, US 7552 3601 3582 VIETEL-AS-AP Viettel Group, VN 8551 3559 3520 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 16509 6054 3457 AMAZON-02, US Complete listing at https://bgp.nsrc.org/REN/London/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 46990 UNALLOCATED 8.5.242.0/23 3356 LEVEL3, US 62828 UNALLOCATED 8.21.130.0/24 3356 LEVEL3, US 393266 UNALLOCATED 8.23.52.0/24 46887 LIGHTOWER, US 18604 UNALLOCATED 8.25.204.0/24 3356 LEVEL3, US 394936 UNALLOCATED 8.33.224.0/24 174 COGENT-174, US 54338 UNALLOCATED 8.33.241.0/24 6461 ZAYO-6461, US 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US 395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US 395056 UNALLOCATED 8.45.133.0/24 3356 LEVEL3, US 32306 UNALLOCATED 8.46.80.0/24 3356 LEVEL3, US Complete listing at https://bgp.nsrc.org/REN/London/data-badAS Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.141.0.0/24 Origin: 395350 UNASSIGNED 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US 23.252.160.0/24 Origin: 398968 GROUP-IID-01, US 23.252.160.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.161.0/24 Origin: 398968 GROUP-IID-01, US 23.252.161.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.162.0/24 Origin: 398968 GROUP-IID-01, US 23.252.162.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE 23.252.163.0/24 Origin: 398968 GROUP-IID-01, US 23.252.163.0/24 Transit: 1299 TWELVE99 Twelve99, Telia Carrier, SE Complete listing at https://bgp.nsrc.org/REN/London/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 /10:40 /11:99 /12:300 /13:590 /14:1204 /15:2072 /16:13533 /17:8266 /18:13767 /19:24891 /20:41848 /21:50543 /22:107079 /23:93351 /24:510643 /25:0 /26:1 /27:0 /28:0 /29:1 /30:4 /31:0 /32:2 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 12479 5782 6839 UNI2-AS, ES 8151 4401 10579 Uninet S.A. de C.V., MX 11492 3533 4580 CABLEONE, US 6327 3199 3391 SHAW, CA 7155 3040 3948 VIASAT-SP-BACKBONE, US 8551 3024 3559 BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo 22773 3003 4034 ASN-CXA-ALL-CCI-22773-RDC, US 39891 2807 3271 ALJAWWALSTC-AS, SA 30036 2258 2603 MEDIACOM-ENTERPRISE-BUSINESS, US 11830 1921 2466 Instituto Costarricense de Electricidad y Telec Complete listing at https://bgp.nsrc.org/REN/London/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1883 2:985 3:148 4:18 5:3686 6:102 7:5 8:1516 11:172 12:1701 13:408 14:2309 15:135 16:35 17:373 18:130 20:143 21:4 22:188 23:5343 24:2335 25:4 27:2577 29:19 31:2429 32:103 34:1 35:49 36:1745 37:3901 38:2419 39:707 40:148 41:3906 42:1052 43:2094 44:293 45:15957 46:3844 47:273 49:1616 50:1887 51:106 52:1351 54:290 55:731 56:4 57:56 58:1638 59:1044 60:945 61:2254 62:2405 63:1940 64:5395 65:2319 66:4908 67:2918 68:1179 69:4137 70:1340 71:675 72:3043 74:2612 75:1505 76:711 77:2134 78:1789 79:2776 80:1911 81:1498 82:1415 83:1191 84:1305 85:2832 86:689 87:1903 88:1005 89:3118 90:493 91:7512 92:1888 93:2560 94:3268 95:3599 96:1292 97:344 98:987 99:878 100:75 101:1299 102:1880 103:27749 104:4077 105:453 106:845 107:2391 108:740 109:4041 110:2036 111:3119 112:1934 113:1414 114:1545 115:1978 116:1865 117:2491 118:2295 119:1875 120:1593 121:965 122:2498 123:2102 124:1548 125:1976 128:1329 129:1136 130:888 131:2067 132:769 133:365 134:1916 135:281 136:844 137:856 138:2439 139:1218 140:856 141:1320 142:1206 143:1410 144:1226 145:333 146:1741 147:1437 148:2202 149:1607 150:864 151:1080 152:1776 153:443 154:3596 155:1361 156:1875 157:1209 158:994 159:2002 160:2374 161:1274 162:3427 163:1181 164:1667 165:1541 166:606 167:1696 168:3631 169:680 170:4310 171:821 172:2913 173:3028 174:1004 175:1133 176:3421 177:4532 178:3015 179:1997 180:2324 181:2686 182:3148 183:1916 184:2412 185:19154 186:4252 187:3499 188:3775 189:3122 190:8775 191:1312 192:10967 193:8480 194:6923 195:4952 196:2885 197:2376 198:5945 199:5949 200:7376 201:5693 202:10181 203:10009 204:4493 205:3404 206:3739 207:3279 208:3980 209:4578 210:3989 211:2336 212:3874 213:3356 214:1150 215:64 216:6363 217:2622 218:1187 219:442 220:1694 221:983 222:672 223:2110 End of report