Routing Table Report 00:00 GMT Mon 21 Nov, 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: 385625
Prefixes after maximum aggregation: 168175
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 187935
Total ASes present in the Internet Routing Table: 39357
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32513
Origin ASes announcing only one prefix: 15498
Transit ASes present in the Internet Routing Table: 5195
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 5612
Unregistered ASNs in the Routing Table: 913
Number of 32-bit ASNs allocated by the RIRs: 1972
Number of 32-bit ASNs visible in the Routing Table: 1649
Prefixes from 32-bit ASNs in the Routing Table: 3836
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 84
Number of addresses announced to Internet: 2491703845
Equivalent to 148 /8s, 132 /16s and 98 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.6
Total number of prefixes smaller than registry allocations: 161893
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93031
Total APNIC prefixes after maximum aggregation: 30077
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 89533
Unique aggregates announced from the APNIC address blocks: 38446
APNIC Region origin ASes present in the Internet Routing Table: 4597
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1283
APNIC Region transit ASes present in the Internet Routing Table: 718
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 108
Number of APNIC addresses announced to Internet: 630302208
Equivalent to 37 /8s, 145 /16s and 166 /24s
Percentage of available APNIC address space announced: 79.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 148548
Total ARIN prefixes after maximum aggregation: 76630
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120510
Unique aggregates announced from the ARIN address blocks: 48562
ARIN Region origin ASes present in the Internet Routing Table: 14755
ARIN Prefixes per ASN: 8.17
ARIN Region origin ASes announcing only one prefix: 5621
ARIN Region transit ASes present in the Internet Routing Table: 1514
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 803235336
Equivalent to 47 /8s, 224 /16s and 102 /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: 94516
Total RIPE prefixes after maximum aggregation: 51373
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 85863
Unique aggregates announced from the RIPE address blocks: 54511
RIPE Region origin ASes present in the Internet Routing Table: 16140
RIPE Prefixes per ASN: 5.32
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2495
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 20
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1151
Number of RIPE addresses announced to Internet: 492786892
Equivalent to 29 /8s, 95 /16s and 84 /24s
Percentage of available RIPE address space announced: 79.4
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: 36813
Total LACNIC prefixes after maximum aggregation: 7967
LACNIC Deaggregation factor: 4.62
Prefixes being announced from the LACNIC address blocks: 36194
Unique aggregates announced from the LACNIC address blocks: 18649
LACNIC Region origin ASes present in the Internet Routing Table: 1548
LACNIC Prefixes per ASN: 23.38
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 374
Number of LACNIC addresses announced to Internet: 93163528
Equivalent to 5 /8s, 141 /16s and 144 /24s
Percentage of available LACNIC address space announced: 61.7
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: 8679
Total AfriNIC prefixes after maximum aggregation: 2055
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6728
Unique aggregates announced from the AfriNIC address blocks: 2052
AfriNIC Region origin ASes present in the Internet Routing Table: 499
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 153
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 27779072
Equivalent to 1 /8s, 167 /16s and 224 /24s
Percentage of available AfriNIC address space announced: 41.4
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 1951 11101 662 Korea Telecom (KIX)
17974 1643 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 87 TPG Internet Pty Ltd
4755 1530 377 169 Videsh Sanchar Nigam Ltd. Aut
7552 1394 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1095 81 495 Sify Limited
24560 965 343 218 Bharti Airtel Ltd.
18101 953 119 148 Reliance Infocom Ltd Internet
4808 929 1913 267 CNCGROUP IP network: China169
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 3489 3814 220 bellsouth.net, inc.
7029 2948 1046 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1851 680 121 AppliedTheory Corporation
4323 1613 1094 389 Time Warner Telecom
20115 1597 1546 624 Charter Communications
22773 1500 2909 103 Cox Communications, Inc.
30036 1429 257 671 Mediacom Communications Corp
19262 1387 4683 401 Verizon Global Networks
7018 1320 7063 867 AT&T WorldNet Services
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
8402 1575 416 14 Corbina telecom
286 1094 810 199 KPNQwest Backbone AS
6830 647 1927 411 UPC Distribution Services
34984 601 112 188 Tellcom Iletisim Hizmetleri
20940 561 185 440 Akamai Technologies European
9116 541 326 31 Goldenlines main autonomous s
3292 532 2106 410 TDC Tele Danmark
3320 512 8168 389 Deutsche Telekom AG
12479 484 596 9 Uni2 Autonomous System
8866 462 133 26 Bulgarian Telecommunication C
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 1695 314 176 TVCABLE BOGOTA
8151 1493 2953 344 Uninet S.A. de C.V.
28573 1493 1044 70 Types of queries are: POCs, o
7303 1224 749 172 Telecom Argentina Stet-France
27947 620 72 87 Telconet S.A
22047 580 322 17 Types of queries are: POCs, o
6503 565 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 546 429 25 Prima S.A.
3816 542 234 97 COLOMBIA TELECOMUNICACIONES S
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
24863 777 146 34 LINKdotNET AS number
8452 668 446 12 TEDATA
15475 455 74 8 Nile Online
36992 283 415 21 Etisalat MISR
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
33776 212 13 14 Starcomms Nigeria Limited
12258 197 28 58 YEBO-AS
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 3489 3814 220 bellsouth.net, inc.
7029 2948 1046 212 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1951 11101 662 Korea Telecom (KIX)
1785 1851 680 121 AppliedTheory Corporation
10620 1695 314 176 TVCABLE BOGOTA
17974 1643 511 36 PT TELEKOMUNIKASI INDONESIA
7545 1624 303 87 TPG Internet Pty Ltd
4323 1613 1094 389 Time Warner Telecom
20115 1597 1546 624 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 2948 2736 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1851 1730 AppliedTheory Corporation
17974 1643 1607 PT TELEKOMUNIKASI INDONESIA
8402 1575 1561 Corbina telecom
7545 1624 1537 TPG Internet Pty Ltd
10620 1695 1519 TVCABLE BOGOTA
28573 1493 1423 Types of queries are: POCs, o
22773 1500 1397 Cox Communications, Inc.
7552 1394 1387 Vietel Corporation
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 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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 37345 MEDALLION Communications
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 /11:81 /12:236
/13:465 /14:812 /15:1458 /16:12151 /17:6346 /18:10416
/19:20529 /20:28832 /21:28227 /22:38249 /23:35949 /24:200086
/25:67 /26:85 /27:111 /28:285 /29:114 /30:528
/31:53 /32:486
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2560 2948 Windstream Communications Inc
6389 2130 3489 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1590 1695 TVCABLE BOGOTA
8402 1552 1575 Corbina telecom
30036 1389 1429 Mediacom Communications Corp
11492 1117 1154 Cable One
1785 1058 1851 AppliedTheory Corporation
7011 1050 1167 Citizens Utilities
22773 960 1500 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:421 2:485 4:19 5:1 6:3 8:358
12:1962 13:1 14:551 15:11 16:3 17:7
20:9 23:63 24:1694 27:1027 31:711 32:120
33:2 34:2 36:4 38:766 39:1 40:109
41:2739 42:61 43:1 44:3 46:1058 47:3
49:295 50:457 52:13 55:7 56:2 57:59
58:931 59:491 60:360 61:1159 62:1106 63:1984
64:4084 65:2304 66:4365 67:2046 68:1356 69:3226
70:953 71:383 72:1831 73:1 74:2695 75:444
76:332 77:892 78:889 79:460 80:1142 81:844
82:527 83:526 84:633 85:1153 86:412 87:913
88:361 89:1613 90:235 91:4289 92:539 93:1446
94:1318 95:1109 96:432 97:285 98:802 99:37
101:243 103:501 106:1 107:95 108:83 109:1199
110:677 111:808 112:363 113:499 114:599 115:716
116:894 117:717 118:897 119:1255 120:321 121:690
122:1576 123:1029 124:1364 125:1347 128:279 129:187
130:178 131:635 132:155 133:21 134:229 135:54
136:211 137:146 138:285 139:133 140:493 141:250
142:387 143:401 144:497 145:65 146:474 147:228
148:684 149:263 150:163 151:192 152:449 153:172
154:7 155:390 156:208 157:359 158:156 159:493
160:330 161:215 162:371 163:174 164:518 165:386
166:541 167:446 168:825 169:147 170:826 171:87
172:4 173:1769 174:594 175:436 176:325 177:392
178:1126 180:1155 181:39 182:663 183:240 184:396
185:1 186:1403 187:777 188:982 189:1159 190:5193
192:5961 193:5068 194:3575 195:3130 196:1286 197:167
198:3625 199:4226 200:5515 201:1702 202:8562 203:8553
204:4290 205:2401 206:2620 207:2836 208:4036 209:3596
210:2738 211:1458 212:2055 213:1815 214:802 215:97
216:4899 217:1614 218:570 219:341 220:1260 221:506
222:328 223:280
End of report
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