This is an automated weekly mailing describing the state of the IPv4 Research & Education Routing Table received by NSRC's collector from Guam'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 . IPv4 R&E Routing Table Report 21:25 GMT Sat 28 Mar, 2026 IPv4 BGP Table (Global) as seen at Guam. Report Website: https://bgp.nsrc.org/REN Detailed Analysis: https://bgp.nsrc.org/REN/Guam/ Analysis Summary ---------------- BGP routing table entries examined: 1069818 Prefixes after maximum aggregation (per Origin AS): 399705 Deaggregation factor: 2.68 Unique aggregates announced (without unneeded subnets): 511624 Number of IPv4 prefixes with a valid ROA: 640798 Number of IPv4 prefixes with an invalid ROA: 19 Number of IPv4 prefixes with no ROA: 429001 Total ASes present in the Internet Routing Table: 78330 Prefixes per ASN: 13.66 Origin-only ASes present in the Internet Routing Table: 66961 Origin ASes announcing only one prefix: 26967 Transit ASes present in the Internet Routing Table: 11369 Transit-only ASes present in the Internet Routing Table: 591 Paths with bogon ASNs present in the IPv4 Routing Table: 44 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 250 Max AS path prepend of ASN ( 17210) 245 Prefixes from unregistered ASNs in the Routing Table: 1081 Number of instances of unregistered ASNs: 1111 Number of 32-bit ASNs allocated by the RIRs: 49156 Number of 32-bit ASNs visible in the Routing Table: 40276 Prefixes from 32-bit ASNs in the Routing Table: 234563 Number of bogon 32-bit ASNs visible in the Routing Table: 74 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 302 Number of addresses announced to Internet: 3112355202 Equivalent to 185 /8s, 130 /16s and 197 /24s Percentage of available address space announced: 84.1 Percentage of allocated address space announced: 84.1 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: 349440 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 294802 Total APNIC prefixes after maximum aggregation: 83426 APNIC Deaggregation factor: 3.53 Prefixes being announced from the APNIC address blocks: 282018 Unique aggregates announced from the APNIC address blocks: 107296 APNIC Region origin ASes present in the Internet Routing Table: 15230 APNIC Prefixes per ASN: 18.52 APNIC Region origin ASes announcing only one prefix: 4650 APNIC Region transit ASes present in the Internet Routing Table: 2061 Average APNIC Region AS path length visible: 5.4 Max APNIC Region AS path length visible: 54 Number of APNIC region 32-bit ASNs visible in the Routing Table: 10733 Number of APNIC addresses announced to Internet: 758135360 Equivalent to 45 /8s, 48 /16s and 58 /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: 305907 Total ARIN prefixes after maximum aggregation: 135889 ARIN Deaggregation factor: 2.25 Prefixes being announced from the ARIN address blocks: 304975 Unique aggregates announced from the ARIN address blocks: 146543 ARIN Region origin ASes present in the Internet Routing Table: 19425 ARIN Prefixes per ASN: 15.70 ARIN Region origin ASes announcing only one prefix: 7094 ARIN Region transit ASes present in the Internet Routing Table: 2009 Average ARIN Region AS path length visible: 4.9 Max ARIN Region AS path length visible: 250 Number of ARIN region 32-bit ASNs visible in the Routing Table: 5534 Number of ARIN addresses announced to Internet: 1348011522 Equivalent to 80 /8s, 89 /16s and 6 /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, 393216-404380 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: 289065 Total RIPE prefixes after maximum aggregation: 141811 RIPE Deaggregation factor: 2.04 Prefixes being announced from the RIPE address blocks: 291357 Unique aggregates announced from the RIPE address blocks: 187973 RIPE Region origin ASes present in the Internet Routing Table: 29378 RIPE Prefixes per ASN: 9.92 RIPE Region origin ASes announcing only one prefix: 12137 RIPE Region transit ASes present in the Internet Routing Table: 4087 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 37 Number of RIPE region 32-bit ASNs visible in the Routing Table: 13231 Number of RIPE addresses announced to Internet: 732736640 Equivalent to 43 /8s, 172 /16s and 172 /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: 137613 Total LACNIC prefixes after maximum aggregation: 30747 LACNIC Deaggregation factor: 4.48 Prefixes being announced from the LACNIC address blocks: 133027 Unique aggregates announced from the LACNIC address blocks: 50182 LACNIC Region origin ASes present in the Internet Routing Table: 11377 LACNIC Prefixes per ASN: 11.69 LACNIC Region origin ASes announcing only one prefix: 2423 LACNIC Region transit ASes present in the Internet Routing Table: 2622 Average LACNIC Region AS path length visible: 6.0 Max LACNIC Region AS path length visible: 69 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 9401 Number of LACNIC addresses announced to Internet: 169881536 Equivalent to 10 /8s, 32 /16s and 47 /24s LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 61440-61951, 64099-64197, 262144-275868 + 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: 41350 Total AfriNIC prefixes after maximum aggregation: 7146 AfriNIC Deaggregation factor: 5.79 Prefixes being announced from the AfriNIC address blocks: 58139 Unique aggregates announced from the AfriNIC address blocks: 19365 AfriNIC Region origin ASes present in the Internet Routing Table: 2011 AfriNIC Prefixes per ASN: 28.91 AfriNIC Region origin ASes announcing only one prefix: 663 AfriNIC Region transit ASes present in the Internet Routing Table: 390 Average AfriNIC Region AS path length visible: 6.2 Max AfriNIC Region AS path length visible: 63 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 1377 Number of AfriNIC addresses announced to Internet: 103363328 Equivalent to 6 /8s, 41 /16s and 51 /24s AfriNIC AS Blocks 36864-37887, 327680-330751 & 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 13968 9093 161 CHINAMOBILE-CN China Mobile Communication 7545 5929 828 500 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4972 4192 76 ERX-CERNET-BKB China Education and Resear 9498 4876 548 317 BBIL-AP BHARTI Airtel Ltd., IN 18403 4600 347 25 FPT-AS-AP FPT Telecom Company, VN 45899 4439 1873 53 VNPT-AS-VN VNPT Corp, VN 7552 4053 1332 29 VIETEL-AS-AP Viettel Group, VN 7713 3677 1044 65 TELKOMNET-AS-AP PT Telekomunikasi Indones 56046 3618 908 228 CMNET-JIANGSU-AP China Mobile communicati 24560 3007 861 514 AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14565 41225 5605 AMAZON-02 - Amazon.com, Inc., US 174 4901 8761 819 COGENT-174 - Cogent Communications, LLC, 22773 4779 3101 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica 11492 4651 309 1023 CABLEONE - CABLE ONE, INC., US 7155 3861 286 85 VIASAT-SP-BACKBONE - ViaSat,Inc., US 6327 3721 1321 75 SHAW - Shaw Communications, CA 396982 3292 4856 485 GOOGLE-CLOUD-PLATFORM - Google LLC, US 749 3140 54728 2391 DNIC-AS-00749 - United States Department 36352 2704 222 888 AS-COLOCROSSING - HostPapa, US 16625 2693 1181 2097 AKAMAI-AS - Akamai Technologies, Inc., US Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 12479 7182 1711 149 UNI2-AS, ES 39891 4971 306 72 ALJAWWALSTC-AS, SA 20940 3847 3389 112 AKAMAI-ASN1, NL 9009 3842 356 2250 M247, RO 12389 3150 2320 871 ROSTELECOM-AS PJSC Rostelecom. Technical 212238 2695 195 1978 CDNEXT, GB 34984 2455 365 570 TELLCOM-AS, TR 8452 1730 1852 17 TE-AS TE-AS, EG 203020 1632 248 807 HOSTROYALE, IN 13188 1607 100 27 TRIOLAN, UA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 12829 3294 607 UNINET, MX 10620 3452 457 1103 Telmex Colombia S.A., CO 13999 2460 506 344 Mega Cable, S.A. de C.V., MX 11830 1959 369 65 Instituto Costarricense de Electricidad y 28573 1584 2430 272 Claro NXT Telecomunicacoes Ltda, BR 11664 1454 278 33 Techtel LMDS Comunicaciones Interactivas 3816 1342 770 213 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC, 6147 1243 371 22 INTEGRATEL PERU S.A.A., PE 26615 1058 2393 95 TIM SA, BR 22884 1055 67 355 TOTAL PLAY TELECOMUNICACIONES SA DE CV, M Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 24835 2045 648 34 RAYA-AS, EG 36992 1854 1531 336 ETISALAT-MISR, EG 37457 1659 385 28 Telkom-Internet, ZA 20011 1342 206 352 NTT-DATA-Inc, ZA 24863 1286 389 16 LINKdotNET-AS, EG 36935 1246 523 46 Vodafone-, EG 36903 1232 555 98 MT-MPLS, MA 37069 1116 1100 11 MOBINIL, EG 29571 1072 78 20 ORANGE-COTE-IVOIRE, CI 3741 554 724 321 NTT-DATA-Inc, ZA Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 16509 14565 41225 5605 AMAZON-02 - Amazon.com, Inc., US 9808 13968 9093 161 CHINAMOBILE-CN China Mobile Communication 8151 12829 3294 607 UNINET, MX 12479 7182 1711 149 UNI2-AS, ES 7545 5929 828 500 TPG-INTERNET-AP TPG Telecom Limited, AU 4538 4972 4192 76 ERX-CERNET-BKB China Education and Resear 39891 4971 306 72 ALJAWWALSTC-AS, SA 174 4901 8761 819 COGENT-174 - Cogent Communications, LLC, 9498 4876 548 317 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 3101 364 ASN-CXA-ALL-CCI-22773-RDC - Cox Communica Complete listing at https://bgp.nsrc.org/REN/Guam/data-ASnet Global Per AS Maximum Aggregation summary ----------------------------------------- ASN No of nets Net Savings Description 9808 13968 13807 CHINAMOBILE-CN China Mobile Communications Grou 8151 12829 12222 UNINET, MX 12479 7182 7033 UNI2-AS, ES 7545 5929 5429 TPG-INTERNET-AP TPG Telecom Limited, AU 39891 4971 4899 ALJAWWALSTC-AS, SA 4538 4972 4896 ERX-CERNET-BKB China Education and Research Net 18403 4600 4575 FPT-AS-AP FPT Telecom Company, VN 9498 4876 4559 BBIL-AP BHARTI Airtel Ltd., IN 22773 4779 4415 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 45899 4439 4386 VNPT-AS-VN VNPT Corp, VN Complete listing at https://bgp.nsrc.org/REN/Guam/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Net Originated Transit AS Transit AS Name 393266 UNALLOCATED 8.23.52.0/24 46887 CROWNCASTLE-AS46887 - C 396894 UNALLOCATED 8.28.201.0/24 3356 LEVEL3 - Level 3 Parent 394936 UNALLOCATED 8.33.224.0/24 22442 HOU-PHONOSCOPE - Phonos 395195 UNALLOCATED 8.38.115.0/24 3356 LEVEL3 - Level 3 Parent 1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3 - Level 3 Parent 13342 UNALLOCATED 12.17.5.0/24 174 COGENT-174 - Cogent Com 26345 UNALLOCATED 12.21.93.0/24 40264 TWC-40264-WI-MN-UPPERMI 396831 UNALLOCATED 12.23.198.0/24 33491 COMCAST-33491 - Comcast 395476 UNALLOCATED 12.36.194.0/24 7018 ATT-INTERNET4 - AT&T En 395476 UNALLOCATED 12.36.195.0/24 3356 LEVEL3 - Level 3 Parent Complete listing at https://bgp.nsrc.org/REN/Guam/data-badAS Prefixes from the Special Purpose Address Registry (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.88.99.0/24 6939 HURRICANE - Hurricane Electric LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/data-spar Advertised Unallocated Addresses -------------------------------- Unassigned Network ASN Information AS Name 23.137.200.0/24 Origin: 16276 OVH, FR 23.137.200.0/24 Transit: 3605 ERX-KUENTOS-AS Guam Cablevision, LLC., G 23.140.216.0/24 Origin: 27176 DATAWAGON - DataWagon LLC, US 23.140.216.0/24 Transit: 20278 NEXEON - Nexeon Technologies, Inc., US 23.141.0.0/24 Origin: 395350 RESERVED, ZZ 23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS - Charter Communicat 23.142.24.0/24 Origin: 62164 HEYMMAN-2, CA 23.142.24.0/24 Transit: 64236 UNREAL-SERVERS - UnReal Servers, LLC, US 23.142.82.0/23 Origin: 397423 TIER-NET - Tier.Net Technologies LLC, US 23.142.82.0/23 Transit: 3356 LEVEL3 - Level 3 Parent, LLC, US Complete listing at https://bgp.nsrc.org/REN/Guam/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 /9:14 /10:40 /11:95 /12:298 /13:586 /14:1197 /15:2104 /16:13737 /17:8510 /18:13994 /19:26366 /20:47773 /21:53793 /22:115760 /23:113145 /24:671658 /25:75 /26:84 /27:116 /28:40 /29:65 /30:9 /31:3 /32:340 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 8151 7003 12829 UNINET, MX 12479 6124 7182 UNI2-AS, ES 39891 3655 4971 ALJAWWALSTC-AS, SA 11492 3511 4651 CABLEONE - CABLE ONE, INC., US 6327 3501 3721 SHAW - Shaw Communications, CA 22773 3051 4779 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US 7155 2820 3861 VIASAT-SP-BACKBONE - ViaSat,Inc., US 16509 2615 14565 AMAZON-02 - Amazon.com, Inc., US 30036 2317 2666 MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp, US 10620 2232 3452 Telmex Colombia S.A., CO Complete listing at https://bgp.nsrc.org/REN/Guam/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:2557 2:1704 3:1004 4:7 5:5217 6:193 7:6 8:1536 9:37 11:172 12:1190 13:681 14:2744 15:459 16:169 17:425 18:917 20:621 21:4 22:188 23:8241 24:2852 25:2 27:2884 28:1 29:19 31:3482 32:40 34:91 35:294 36:4676 37:4483 38:11111 39:1279 40:416 41:4694 42:2287 43:3129 44:451 45:20809 46:4916 47:430 48:99 49:2260 50:2037 51:618 52:1309 54:274 55:1114 56:11 57:327 58:2574 59:1626 60:1182 61:3366 62:3175 63:1763 64:6274 65:2132 66:6051 67:3255 68:1505 69:4212 70:1047 71:616 72:3116 74:3012 75:1488 76:591 77:2931 78:1934 79:1801 80:2355 81:2239 82:4033 83:1447 84:2094 85:3814 86:1098 87:2466 88:1356 89:4731 90:786 91:8501 92:2839 93:3033 94:4414 95:4658 96:1449 97:315 98:944 99:809 100:68 101:1644 102:5169 103:32874 104:5347 105:2317 106:931 107:2852 108:1236 109:4257 110:2311 111:4184 112:3175 113:2102 114:2294 115:2362 116:2235 117:3528 118:3065 119:2194 120:2752 121:1638 122:3030 123:2458 124:1858 125:3049 126:125 128:1694 129:1015 130:1634 131:2573 132:815 133:489 134:1658 135:608 136:1592 137:1375 138:3438 139:1708 140:1786 141:1708 142:2521 143:2155 144:1719 145:640 146:2209 147:2182 148:2727 149:3143 150:1359 151:2738 152:2316 153:1063 154:9851 155:2327 156:4523 157:2312 158:1507 159:2818 160:3887 161:1958 162:4047 163:2482 164:2076 165:2670 166:1293 167:2285 168:4239 169:916 170:5803 171:1140 172:4542 173:3483 174:885 175:1412 176:3906 177:5793 178:4391 179:2608 180:3147 181:4621 182:4043 183:2857 184:2015 185:21978 186:6253 187:5418 188:4644 189:4687 190:10037 191:1966 192:11540 193:9625 194:7928 195:5947 196:3628 197:3920 198:6156 199:6088 200:8444 201:6613 202:11241 203:10913 204:4758 205:3756 206:4579 207:3890 208:4409 209:5470 210:5249 211:2936 212:5026 213:4141 214:1050 215:47 216:7292 217:3567 218:2003 219:655 220:2341 221:1330 222:1425 223:3452 End of report