Routing Table Report 00:00 GMT Fri 22 Jul, 2011
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 370078
Prefixes after maximum aggregation: 166887
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180677
Total ASes present in the Internet Routing Table: 38287
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 31778
Origin ASes announcing only one prefix: 15242
Transit ASes present in the Internet Routing Table: 5227
Transit-only ASes present in the Internet Routing Table: 142
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 39
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 4020
Unregistered ASNs in the Routing Table: 579
Number of 32-bit ASNs allocated by the RIRs: 1583
Number of 32-bit ASNs visible in the Routing Table: 1282
Prefixes from 32-bit ASNs in the Routing Table: 2942
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 121
Number of addresses announced to Internet: 2484294983
Equivalent to 148 /8s, 19 /16s and 85 /24s
Percentage of available address space announced: 67.0
Percentage of allocated address space announced: 67.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 153866
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89249
Total APNIC prefixes after maximum aggregation: 29224
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 85924
Unique aggregates announced from the APNIC address blocks: 37407
APNIC Region origin ASes present in the Internet Routing Table: 4501
APNIC Prefixes per ASN: 19.09
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 61
Number of APNIC addresses announced to Internet: 622521857
Equivalent to 37 /8s, 26 /16s and 238 /24s
Percentage of available APNIC address space announced: 78.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
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, 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: 144806
Total ARIN prefixes after maximum aggregation: 75094
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116387
Unique aggregates announced from the ARIN address blocks: 46613
ARIN Region origin ASes present in the Internet Routing Table: 14512
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5546
ARIN Region transit ASes present in the Internet Routing Table: 1517
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 35
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 802521240
Equivalent to 47 /8s, 213 /16s and 128 /24s
Percentage of available ARIN address space announced: 63.8
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, 393216-394239
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,
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, 173/8,
174/8, 184/8, 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: 90026
Total RIPE prefixes after maximum aggregation: 49657
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 82711
Unique aggregates announced from the RIPE address blocks: 52750
RIPE Region origin ASes present in the Internet Routing Table: 15837
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7834
RIPE Region transit ASes present in the Internet Routing Table: 2539
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 39
Number of RIPE region 32-bit ASNs visible in the Routing Table: 935
Number of RIPE addresses announced to Internet: 484566668
Equivalent to 28 /8s, 225 /16s and 230 /24s
Percentage of available RIPE address space announced: 78.1
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
196608-198655
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,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 34305
Total LACNIC prefixes after maximum aggregation: 7683
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33439
Unique aggregates announced from the LACNIC address blocks: 17118
LACNIC Region origin ASes present in the Internet Routing Table: 1490
LACNIC Prefixes per ASN: 22.44
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 271
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 269
Number of LACNIC addresses announced to Internet: 86179848
Equivalent to 5 /8s, 35 /16s and 0 /24s
Percentage of available LACNIC address space announced: 57.1
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 8461
Total AfriNIC prefixes after maximum aggregation: 1975
AfriNIC Deaggregation factor: 4.28
Prefixes being announced from the AfriNIC address blocks: 6539
Unique aggregates announced from the AfriNIC address blocks: 2001
AfriNIC Region origin ASes present in the Internet Routing Table: 474
AfriNIC Prefixes per ASN: 13.80
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24466688
Equivalent to 1 /8s, 117 /16s and 85 /24s
Percentage of available AfriNIC address space announced: 36.5
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1911 11052 634 Korea Telecom (KIX)
17974 1787 516 31 PT TELEKOMUNIKASI INDONESIA
7545 1554 301 85 TPG Internet Pty Ltd
4755 1506 375 170 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1064 7 Vietel Corporation
24560 1156 336 187 Bharti Airtel Ltd.
9829 1108 923 47 BSNL National Internet Backbo
9583 1061 77 502 Sify Limited
4808 1012 2053 286 CNCGROUP IP network: China169
17488 980 187 106 Hathway IP Over Cable Interne
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3606 3818 238 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1811 681 123 AppliedTheory Corporation
4323 1614 1098 401 Time Warner Telecom
20115 1589 1537 625 Charter Communications
7029 1388 1031 207 Windstream Communications Inc
7018 1375 7086 902 AT&T WorldNet Services
22773 1353 2897 89 Cox Communications, Inc.
2386 1258 520 907 AT&T Data Communications Serv
7011 1158 279 623 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 1030 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 521 2078 403 TDC Tele Danmark
6830 513 1788 317 UPC Distribution Services
20940 467 133 360 Akamai Technologies European
12479 455 593 7 Uni2 Autonomous System
8866 452 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 423 8151 369 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1559 287 163 TVCABLE BOGOTA
8151 1427 2728 354 Uninet S.A. de C.V.
28573 1282 995 78 Types of queries are: POCs, o
7303 1009 513 178 Telecom Argentina Stet-France
6503 761 354 75 AVANTEL, S.A.
14420 699 56 84 Types of queries are: POCs, o
22047 578 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 534 232 96 COLOMBIA TELECOMUNICACIONES S
27947 522 54 48 Telconet S.A
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 817 445 11 TEDATA
24863 792 147 41 LINKdotNET AS number
15475 512 74 8 Nile Online
36992 317 415 15 Etisalat MISR
16637 297 441 87 Johnnic e-Ventures
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 226 13 5 Starcomms Nigeria Limited
24835 178 78 10 RAYA Telecom - Egypt
29571 159 17 12 Ci Telecom Autonomous system
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3606 3818 238 bellsouth.net, inc.
23456 2942 713 1584 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1911 11052 634 Korea Telecom (KIX)
1785 1811 681 123 AppliedTheory Corporation
17974 1787 516 31 PT TELEKOMUNIKASI INDONESIA
4323 1614 1098 401 Time Warner Telecom
20115 1589 1537 625 Charter Communications
10620 1559 287 163 TVCABLE BOGOTA
7545 1554 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1787 1756 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1811 1688 AppliedTheory Corporation
7545 1554 1469 TPG Internet Pty Ltd
10620 1559 1396 TVCABLE BOGOTA
23456 2942 1358 >>UNKNOWN<<
4755 1506 1336 Videsh Sanchar Nigam Ltd. Aut
7552 1298 1291 Vietel Corporation
4766 1911 1277 Korea Telecom (KIX)
22773 1353 1264 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.rand.apnic.net/rviews/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 /8:20 /9:12 /10:27 /11:80 /12:232
/13:465 /14:803 /15:1425 /16:12128 /17:6140 /18:10133
/19:20058 /20:27334 /21:26820 /22:35359 /23:34430 /24:191612
/25:389 /26:355 /27:183 /28:368 /29:281 /30:700
/31:63 /32:661
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2227 3606 bellsouth.net, inc.
18566 1907 1957 Covad Communications
23456 1462 2942 >>UNKNOWN<<
10620 1454 1559 TVCABLE BOGOTA
11492 1095 1141 Cable One
7029 1072 1388 Windstream Communications Inc
7011 1056 1158 Citizens Utilities
1785 1055 1811 AppliedTheory Corporation
6478 1013 1042 AT&T Worldnet Services
286 891 1030 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:327 2:68 4:20 5:1 6:3 8:339
12:1968 13:1 14:487 15:15 16:3 17:5
20:10 23:14 24:1683 27:841 31:508 32:135
33:4 34:2 36:4 38:732 40:104 41:2602
42:34 44:3 46:1049 47:3 49:201 50:383
52:13 54:2 55:7 56:2 57:45 58:862
59:482 60:385 61:1183 62:1056 63:1957 64:4045
65:2298 66:3911 67:1908 68:1286 69:3163 70:774
71:277 72:1871 73:1 74:2403 75:330 76:348
77:931 78:716 79:485 80:1121 81:881 82:516
83:470 84:700 85:1080 86:538 87:784 88:339
89:1573 90:224 91:3981 92:525 93:1071 94:1380
95:917 96:374 97:262 98:927 99:37 101:78
103:142 106:73 107:23 108:64 109:1031 110:619
111:710 112:305 113:413 114:559 115:687 116:1000
117:690 118:866 119:1175 120:315 121:692 122:1608
123:969 124:1305 125:1279 128:247 129:174 130:170
131:576 132:109 133:21 134:215 135:47 136:215
137:138 138:299 139:129 140:483 141:221 142:406
143:415 144:478 145:54 146:455 147:222 148:669
149:249 150:161 151:167 152:341 153:182 154:4
155:398 156:199 157:352 158:140 159:455 160:315
161:204 162:310 163:166 164:501 165:397 166:533
167:436 168:740 169:154 170:848 171:80 172:1
173:1622 174:612 175:382 176:144 177:158 178:1010
180:913 181:24 182:511 183:215 184:345 185:1
186:1304 187:777 188:872 189:947 190:5011 192:5941
193:5020 194:3582 195:3184 196:1212 197:41 198:3592
199:3989 200:5568 201:1478 202:8428 203:8453 204:4235
205:2350 206:2732 207:2822 208:4115 209:3516 210:2687
211:1455 212:2144 213:1818 214:767 215:70 216:5001
217:1684 218:547 219:351 220:1236 221:498 222:360
223:219
End of report
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