[REN-BGP-stats-all] IPv4 R&E Routing Table Report - KREONet2 (R&E) view
REN Routing Table Report
cscora at bgp.nsrc.org
Fri Apr 4 20:17:03 UTC 2025
IPv4 R&E Routing Table Report 20:15 GMT Fri 04 Apr, 2025
IPv4 BGP Table (R&E) as seen at KREONet2.
Report Website: https://bgp.nsrc.org/REN
Detailed Analysis: https://bgp.nsrc.org/REN/KREONet2/
Analysis Summary
----------------
BGP routing table entries examined: 264862
Prefixes after maximum aggregation (per Origin AS): 115849
Deaggregation factor: 2.29
Unique aggregates announced (without unneeded subnets): 137785
Number of IPv4 prefixes with a valid ROA: 118721
Number of IPv4 prefixes with an invalid ROA: 18
Number of IPv4 prefixes with no ROA: 146123
Total ASes present in the Internet Routing Table: 20382
Prefixes per ASN: 12.99
Origin-only ASes present in the Internet Routing Table: 17555
Origin ASes announcing only one prefix: 7872
Transit ASes present in the Internet Routing Table: 2827
Transit-only ASes present in the Internet Routing Table: 753
Paths with bogon ASNs present in the IPv4 Routing Table: 6
Average AS path length visible in the Internet Routing Table: 5.8
Max AS path length visible: 38
Max AS path prepend of ASN ( 37447) 34
Prefixes from unregistered ASNs in the Routing Table: 266
Number of instances of unregistered ASNs: 267
Number of 32-bit ASNs allocated by the RIRs: 46151
Number of 32-bit ASNs visible in the Routing Table: 7920
Prefixes from 32-bit ASNs in the Routing Table: 30054
Number of bogon 32-bit ASNs visible in the Routing Table: 4
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 1558421469
Equivalent to 92 /8s, 227 /16s and 159 /24s
Percentage of available address space announced: 42.1
Percentage of allocated address space announced: 42.1
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: 84573
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 31872
Total APNIC prefixes after maximum aggregation: 7504
APNIC Deaggregation factor: 4.25
Prefixes being announced from the APNIC address blocks: 30640
Unique aggregates announced from the APNIC address blocks: 8023
APNIC Region origin ASes present in the Internet Routing Table: 1213
APNIC Prefixes per ASN: 25.26
APNIC Region origin ASes announcing only one prefix: 488
APNIC Region transit ASes present in the Internet Routing Table: 207
Average APNIC Region AS path length visible: 7.3
Max APNIC Region AS path length visible: 19
Number of APNIC region 32-bit ASNs visible in the Routing Table: 556
Number of APNIC addresses announced to Internet: 168811372
Equivalent to 10 /8s, 15 /16s and 219 /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: 125183
Total ARIN prefixes after maximum aggregation: 64314
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 122620
Unique aggregates announced from the ARIN address blocks: 65921
ARIN Region origin ASes present in the Internet Routing Table: 9366
ARIN Prefixes per ASN: 13.09
ARIN Region origin ASes announcing only one prefix: 3895
ARIN Region transit ASes present in the Internet Routing Table: 873
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 26
Number of ARIN region 32-bit ASNs visible in the Routing Table: 2166
Number of ARIN addresses announced to Internet: 965727713
Equivalent to 57 /8s, 143 /16s and 213 /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, 393216-402332
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: 49656
Total RIPE prefixes after maximum aggregation: 27184
RIPE Deaggregation factor: 1.83
Prefixes being announced from the RIPE address blocks: 51416
Unique aggregates announced from the RIPE address blocks: 37947
RIPE Region origin ASes present in the Internet Routing Table: 4652
RIPE Prefixes per ASN: 11.05
RIPE Region origin ASes announcing only one prefix: 1949
RIPE Region transit ASes present in the Internet Routing Table: 701
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1914
Number of RIPE addresses announced to Internet: 281561680
Equivalent to 16 /8s, 200 /16s and 74 /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: 47500
Total LACNIC prefixes after maximum aggregation: 14457
LACNIC Deaggregation factor: 3.29
Prefixes being announced from the LACNIC address blocks: 46293
Unique aggregates announced from the LACNIC address blocks: 21668
LACNIC Region origin ASes present in the Internet Routing Table: 4011
LACNIC Prefixes per ASN: 11.54
LACNIC Region origin ASes announcing only one prefix: 1432
LACNIC Region transit ASes present in the Internet Routing Table: 824
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 3142
Number of LACNIC addresses announced to Internet: 98856512
Equivalent to 5 /8s, 228 /16s and 110 /24s
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 64099-64197, 262144-274844 + 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: 10385
Total AfriNIC prefixes after maximum aggregation: 2188
AfriNIC Deaggregation factor: 4.75
Prefixes being announced from the AfriNIC address blocks: 13771
Unique aggregates announced from the AfriNIC address blocks: 4109
AfriNIC Region origin ASes present in the Internet Routing Table: 267
AfriNIC Prefixes per ASN: 51.58
AfriNIC Region origin ASes announcing only one prefix: 108
AfriNIC Region transit ASes present in the Internet Routing Table: 75
Average AfriNIC Region AS path length visible: 6.5
Max AfriNIC Region AS path length visible: 38
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 142
Number of AfriNIC addresses announced to Internet: 43412480
Equivalent to 2 /8s, 150 /16s and 108 /24s
AfriNIC AS Blocks 36864-37887, 327680-329727 & 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 10125 8753 88 CHINAMOBILE-CN China Mobile Communication
56046 1584 811 187 CMNET-JIANGSU-AP China Mobile communicati
56041 1542 714 78 CMNET-ZHEJIANG-AP China Mobile communicat
56047 1480 192 53 CMNET-HUNAN-AP China Mobile communication
24547 850 177 50 CMNET-V4HEBEI-AS-AP Hebei Mobile Communic
24444 777 501 74 CMNET-V4SHANDONG-AS-AP Shandong Mobile Co
2907 639 2170 465 SINET-AS Research Organization of Informa
24445 520 497 67 CMNET-V4HENAN-AS-AP Henan Mobile Communic
17561 519 33 222 LCS-AS-AP LARUS Limited, HK
45102 475 762 134 ALIBABA-CN-NET Alibaba US Technology Co.,
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 12990 39641 3945 AMAZON-02, US
22773 3397 3017 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2596 195 1581 USDA-1, US
367 2466 2890 1195 DNIC-ASBLK-00306-00371, US
36352 2385 198 1064 AS-COLOCROSSING, US
7018 2214 22907 1579 ATT-INTERNET4, US
11776 1892 258 216 ATLANTICBB-JOHNSTOWN, US
6167 1830 3621 458 CELLCO-PART, US
209 1670 4890 277 CENTURYLINK-US-LEGACY-QWEST, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
39891 1936 130 50 ALJAWWALSTC-AS, SA
20940 1258 99 1016 AKAMAI-ASN1, NL
3215 926 4886 285 France Telecom - Orange, FR
3257 926 2075 747 GTT-BACKBONE GTT, US
25019 846 1299 129 SAUDINETSTC-AS, SA
34984 638 71 460 TELLCOM-AS, TR
203214 632 46 356 HULUMTELE, IQ
8452 611 1842 17 TE-AS TE-AS, EG
8376 568 53 25 Jordan Data Communications, JO
51167 567 113 250 CONTABO, DE
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 7338 2018 1001 UNINET, MX
11830 1992 369 64 Instituto Costarricense de Electricidad y
10620 1876 282 1276 Telmex Colombia S.A., CO
3816 1333 784 206 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC,
6147 1196 371 22 Telefonica del Peru S.A.A., PE
26615 982 2503 53 TIM SA, BR
18881 882 1127 31 TELEFONICA BRASIL S.A, BR
27651 656 95 43 ENTEL CHILE S.A., CL
28006 643 77 295 CORPORACION NACIONAL DE TELECOMUNICACIONE
26599 545 2884 69 TELEFONICA BRASIL S.A, BR
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 1469 389 16 LINKdotNET-AS, EG
29571 1211 101 69 ORANGE-COTE-IVOIRE, CI
20011 981 185 285 INTERNET-SOLUTIONS, ZA
24835 805 504 37 RAYA-AS, EG
36935 687 520 41 Vodafone-, EG
36992 604 1229 126 ETISALAT-MISR, EG
36914 547 82 3 KENET-AS, KE
37069 460 1030 15 MOBINIL, EG
36903 417 195 306 MT-MPLS, MA
2018 372 318 69 TENET-1, ZA
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
16509 12990 39641 3945 AMAZON-02, US
9808 10125 8753 88 CHINAMOBILE-CN China Mobile Communication
8151 7338 2018 1001 UNINET, MX
22773 3397 3017 180 ASN-CXA-ALL-CCI-22773-RDC, US
749 3255 54879 2506 DNIC-AS-00749, US
4155 2596 195 1581 USDA-1, US
367 2466 2890 1195 DNIC-ASBLK-00306-00371, US
36352 2385 198 1064 AS-COLOCROSSING, US
7018 2214 22907 1579 ATT-INTERNET4, US
11830 1992 369 64 Instituto Costarricense de Electricidad y
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-ASnet
Global Per AS Maximum Aggregation summary
-----------------------------------------
ASN No of nets Net Savings Description
9808 10125 10037 CHINAMOBILE-CN China Mobile Communications Grou
8151 7338 6337 UNINET, MX
22773 3397 3217 ASN-CXA-ALL-CCI-22773-RDC, US
11830 1992 1928 Instituto Costarricense de Electricidad y Telec
39891 1936 1886 ALJAWWALSTC-AS, SA
11776 1892 1676 ATLANTICBB-JOHNSTOWN, US
56041 1542 1464 CMNET-ZHEJIANG-AP China Mobile communications c
24863 1469 1453 LINKdotNET-AS, EG
56047 1480 1427 CMNET-HUNAN-AP China Mobile communications corp
56046 1584 1397 CMNET-JIANGSU-AP China Mobile communications co
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Net Originated Transit AS Transit AS Name
22542 UNALLOCATED 8.7.205.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.17.66.0/24 701 UUNET, US
46639 UNALLOCATED 8.38.73.0/24 3356 LEVEL3, US
53966 UNALLOCATED 8.39.98.0/24 3356 LEVEL3, US
1782 UNALLOCATED 8.42.19.0/24 3356 LEVEL3, US
22542 UNALLOCATED 8.42.195.0/24 3356 LEVEL3, US
395438 UNALLOCATED 8.42.206.0/24 3356 LEVEL3, US
46639 UNALLOCATED 8.42.219.0/24 3356 LEVEL3, US
399953 UNALLOCATED 12.9.122.0/24 7018 ATT-INTERNET4, US
13342 UNALLOCATED 12.17.5.0/24 7018 ATT-INTERNET4, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-badAS
Prefixes from the Special Purpose Address Registry (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.88.99.0/24 6939 HURRICANE, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-spar
Advertised Unallocated Addresses
--------------------------------
Unassigned Network ASN Information AS Name
23.140.216.0/24 Origin: 27176 DATAWAGON, US
23.140.216.0/24 Transit: 20278 NEXEON, US
23.141.0.0/24 Origin: 395350 RESERVED, ZZ
23.141.0.0/24 Transit: 11426 TWC-11426-CAROLINAS, US
23.152.48.0/24 Origin: 46167 RESERVED, ZZ
23.152.48.0/24 Transit: 7018 ATT-INTERNET4, US
23.158.216.0/24 Origin: 204535 RESERVED, ZZ
23.158.216.0/24 Transit: 22427 GNET-AS, US
41.78.60.0/22 Origin: 6762 SEABONE-NET TELECOM ITALIA SPARKLE S.p.A
41.78.60.0/22 Transit: 2914 NTT-DATA-2914, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/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 /8:13 /9:10 /10:29 /11:42 /12:151
/13:216 /14:577 /15:1099 /16:7590 /17:3448 /18:4209
/19:7730 /20:12410 /21:15514 /22:27963 /23:27707 /24:155938
/25:61 /26:76 /27:35 /28:13 /29:16 /30:10
/31:0 /32:5
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
8151 3860 7338 UNINET, MX
22773 2536 3397 ASN-CXA-ALL-CCI-22773-RDC, US
16509 2337 12990 AMAZON-02, US
11830 1693 1992 Instituto Costarricense de Electricidad y Telecom., CR
39891 1081 1936 ALJAWWALSTC-AS, SA
10620 1036 1876 Telmex Colombia S.A., CO
36352 973 2385 AS-COLOCROSSING, US
209 966 1670 CENTURYLINK-US-LEGACY-QWEST, US
19901 943 1193 BRSPD-PUBLIC, US
11776 881 1892 ATLANTICBB-JOHNSTOWN, US
Complete listing at https://bgp.nsrc.org/REN/KREONet2/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:65 2:484 3:610 4:5 5:835 6:150
7:5 8:639 11:171 12:998 13:296 14:135
15:301 16:241 17:5 18:884 20:161 21:4
22:188 23:2495 24:776 27:26 29:19 31:535
32:18 34:10 35:133 36:1226 37:1114 38:2150
39:543 40:54 41:932 42:221 43:201 44:34
45:3977 46:944 47:83 49:52 50:361 51:380
52:1383 54:276 55:878 56:11 57:18 58:45
59:29 60:17 61:74 62:547 63:776 64:1899
65:1082 66:1579 67:995 68:422 69:1192 70:429
71:213 72:788 74:984 75:436 76:247 77:459
78:336 79:274 80:302 81:349 82:765 83:234
84:362 85:489 86:235 87:251 88:289 89:831
90:105 91:1004 92:693 93:455 94:956 95:728
96:311 97:64 98:472 99:160 100:35 101:20
102:370 103:1225 104:1468 105:135 106:58 107:1503
108:537 109:392 110:57 111:1907 112:463 113:41
114:58 115:16 116:55 117:1039 118:158 119:130
120:1163 121:42 122:130 123:150 124:57 125:24
128:466 129:285 130:660 131:930 132:565 133:213
134:507 135:117 136:581 137:491 138:969 139:434
140:713 141:444 142:969 143:669 144:421 145:109
146:684 147:479 148:861 149:768 150:374 151:634
152:495 153:127 154:1519 155:811 156:1239 157:368
158:511 159:732 160:930 161:717 162:992 163:351
164:724 165:806 166:744 167:641 168:1184 169:151
170:1632 171:120 172:1403 173:814 174:253 175:51
176:520 177:1054 178:527 179:733 180:47 181:1760
182:29 183:856 184:501 185:3454 186:2137 187:1472
188:801 189:1773 190:4389 191:430 192:5147 193:1847
194:1245 195:939 196:792 197:1543 198:2708 199:4900
200:3679 201:3348 202:987 203:720 204:2162 205:1956
206:1549 207:1508 208:1352 209:1973 210:309 211:431
212:1086 213:876 214:1003 215:42 216:2511 217:426
218:522 219:19 220:20 221:301 222:32 223:726
End of report
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