Routing Table Report 00:00 GMT Wed 30 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: 386175
Prefixes after maximum aggregation: 168570
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 188219
Total ASes present in the Internet Routing Table: 39424
Prefixes per ASN: 9.80
Origin-only ASes present in the Internet Routing Table: 32485
Origin ASes announcing only one prefix: 15510
Transit ASes present in the Internet Routing Table: 5266
Transit-only ASes present in the Internet Routing Table: 139
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 29
Max AS path prepend of ASN (56677) 25
Prefixes from unregistered ASNs in the Routing Table: 5746
Unregistered ASNs in the Routing Table: 949
Number of 32-bit ASNs allocated by the RIRs: 2009
Number of 32-bit ASNs visible in the Routing Table: 1673
Prefixes from 32-bit ASNs in the Routing Table: 3934
Special use prefixes present in the Routing Table: 86
Prefixes being announced from unallocated address space: 83
Number of addresses announced to Internet: 2495055396
Equivalent to 148 /8s, 183 /16s and 134 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 161705
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93177
Total APNIC prefixes after maximum aggregation: 30140
APNIC Deaggregation factor: 3.09
Prefixes being announced from the APNIC address blocks: 89697
Unique aggregates announced from the APNIC address blocks: 38411
APNIC Region origin ASes present in the Internet Routing Table: 4583
APNIC Prefixes per ASN: 19.57
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 729
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 112
Number of APNIC addresses announced to Internet: 630767616
Equivalent to 37 /8s, 152 /16s and 192 /24s
Percentage of available APNIC address space announced: 80.0
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: 148868
Total ARIN prefixes after maximum aggregation: 76813
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 120865
Unique aggregates announced from the ARIN address blocks: 48659
ARIN Region origin ASes present in the Internet Routing Table: 14774
ARIN Prefixes per ASN: 8.18
ARIN Region origin ASes announcing only one prefix: 5631
ARIN Region transit ASes present in the Internet Routing Table: 1530
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: 803639304
Equivalent to 47 /8s, 230 /16s and 144 /24s
Percentage of available ARIN address space announced: 63.9
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: 94730
Total RIPE prefixes after maximum aggregation: 51511
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 86110
Unique aggregates announced from the RIPE address blocks: 54635
RIPE Region origin ASes present in the Internet Routing Table: 16164
RIPE Prefixes per ASN: 5.33
RIPE Region origin ASes announcing only one prefix: 8007
RIPE Region transit ASes present in the Internet Routing Table: 2521
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1168
Number of RIPE addresses announced to Internet: 493114828
Equivalent to 29 /8s, 100 /16s and 85 /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: 37024
Total LACNIC prefixes after maximum aggregation: 7999
LACNIC Deaggregation factor: 4.63
Prefixes being announced from the LACNIC address blocks: 36317
Unique aggregates announced from the LACNIC address blocks: 18724
LACNIC Region origin ASes present in the Internet Routing Table: 1548
LACNIC Prefixes per ASN: 23.46
LACNIC Region origin ASes announcing only one prefix: 442
LACNIC Region transit ASes present in the Internet Routing Table: 289
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 377
Number of LACNIC addresses announced to Internet: 93893128
Equivalent to 5 /8s, 152 /16s and 178 /24s
Percentage of available LACNIC address space announced: 62.2
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: 8247
Total AfriNIC prefixes after maximum aggregation: 2035
AfriNIC Deaggregation factor: 4.05
Prefixes being announced from the AfriNIC address blocks: 6294
Unique aggregates announced from the AfriNIC address blocks: 2012
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 12.56
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 111
Average AfriNIC Region AS path length visible: 4.2
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: 27824384
Equivalent to 1 /8s, 168 /16s and 145 /24s
Percentage of available AfriNIC address space announced: 41.5
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 1951 11102 667 Korea Telecom (KIX)
17974 1643 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1622 303 85 TPG Internet Pty Ltd
4755 1510 381 157 Videsh Sanchar Nigam Ltd. Aut
7552 1389 1064 7 Vietel Corporation
9829 1166 989 28 BSNL National Internet Backbo
9583 1095 80 494 Sify Limited
18101 954 120 150 Reliance Infocom Ltd Internet
17488 950 172 215 Hathway IP Over Cable Interne
4808 945 1920 268 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 3482 3814 218 bellsouth.net, inc.
7029 2910 1020 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
1785 1851 680 122 AppliedTheory Corporation
4323 1611 1078 387 Time Warner Telecom
20115 1600 1547 624 Charter Communications
22773 1507 2909 104 Cox Communications, Inc.
30036 1438 258 677 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1318 7062 864 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 1554 480 15 Corbina telecom
286 1088 807 200 KPNQwest Backbone AS
6830 646 1927 412 UPC Distribution Services
34984 613 115 194 Tellcom Iletisim Hizmetleri
20940 564 188 443 Akamai Technologies European
9116 544 326 32 Goldenlines main autonomous s
3292 532 2106 408 TDC Tele Danmark
3320 512 8168 389 Deutsche Telekom AG
12479 505 606 22 Uni2 Autonomous System
8866 461 133 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 1701 315 179 TVCABLE BOGOTA
28573 1498 1059 72 Types of queries are: POCs, o
8151 1490 2962 341 Uninet S.A. de C.V.
7303 1237 751 173 Telecom Argentina Stet-France
27947 598 72 88 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
6503 564 434 70 AVANTEL, S.A.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
10481 546 429 25 Prima S.A.
3816 545 236 88 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
8452 948 446 12 TEDATA
24863 783 146 36 LINKdotNET AS number
3741 281 939 230 The Internet Solution
15706 242 32 6 Sudatel Internet Exchange Aut
33776 236 13 10 Starcomms Nigeria Limited
6713 235 519 14 Itissalat Al-MAGHRIB
29571 218 17 13 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 190 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
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 3482 3814 218 bellsouth.net, inc.
7029 2910 1020 200 Windstream Communications Inc
18566 2093 383 177 Covad Communications
4766 1951 11102 667 Korea Telecom (KIX)
1785 1851 680 122 AppliedTheory Corporation
10620 1701 315 179 TVCABLE BOGOTA
17974 1643 503 38 PT TELEKOMUNIKASI INDONESIA
7545 1622 303 85 TPG Internet Pty Ltd
4323 1611 1078 387 Time Warner Telecom
20115 1600 1547 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 2910 2710 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1851 1729 AppliedTheory Corporation
17974 1643 1605 PT TELEKOMUNIKASI INDONESIA
8402 1554 1539 Corbina telecom
7545 1622 1537 TPG Internet Pty Ltd
10620 1701 1522 TVCABLE BOGOTA
28573 1498 1426 Types of queries are: POCs, o
22773 1507 1403 Cox Communications, Inc.
7552 1389 1382 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<<
50.118.128.0/17 18779 Guru.com
62.61.220.0/24 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 /14:813 /15:1465 /16:12183 /17:6362 /18:10427
/19:20572 /20:28870 /21:28303 /22:38433 /23:36064 /24:200137
/25:69 /26:81 /27:109 /28:283 /29:104 /30:519
/31:53 /32:487
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2538 2910 Windstream Communications Inc
6389 2125 3482 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1596 1701 TVCABLE BOGOTA
8402 1530 1554 Corbina telecom
30036 1398 1438 Mediacom Communications Corp
11492 1118 1155 Cable One
1785 1058 1851 AppliedTheory Corporation
7011 1052 1169 Citizens Utilities
22773 967 1507 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:430 2:491 4:19 5:1 6:3 8:358
12:1953 13:1 14:553 15:11 16:3 17:7
20:9 23:69 24:1699 27:1048 31:702 32:121
33:2 34:2 36:4 38:767 39:1 40:109
41:2785 42:65 43:1 44:3 46:1108 47:3
49:296 50:452 52:13 55:5 56:2 57:59
58:931 59:482 60:359 61:1175 62:923 63:1983
64:4093 65:2312 66:4383 67:2027 68:1357 69:3267
70:953 71:359 72:1842 73:1 74:2702 75:443
76:332 77:899 78:891 79:462 80:1132 81:852
82:537 83:529 84:480 85:1157 86:410 87:910
88:356 89:1605 90:246 91:4312 92:529 93:1423
94:1333 95:1083 96:397 97:284 98:775 99:37
101:247 103:519 106:7 107:99 108:89 109:1103
110:687 111:812 112:375 113:504 114:630 115:712
116:921 117:720 118:880 119:1261 120:350 121:689
122:1511 123:1030 124:1370 125:1354 128:287 129:187
130:178 131:632 132:154 133:21 134:227 135:54
136:212 137:146 138:285 139:134 140:490 141:249
142:381 143:402 144:497 145:66 146:477 147:232
148:694 149:270 150:163 151:191 152:449 153:171
154:7 155:396 156:208 157:359 158:157 159:498
160:333 161:215 162:362 163:175 164:517 165:406
166:541 167:448 168:826 169:146 170:826 171:87
172:4 173:1782 174:583 175:434 176:322 177:402
178:1126 180:1119 181:39 182:671 183:250 184:399
185:1 186:1456 187:783 188:947 189:1163 190:5174
192:5964 193:5109 194:3588 195:3186 196:1279 197:168
198:3632 199:4241 200:5511 201:1697 202:8565 203:8517
204:4329 205:2420 206:2697 207:2844 208:4025 209:3581
210:2758 211:1480 212:2035 213:1836 214:808 215:95
216:4976 217:1490 218:577 219:340 220:1257 221:524
222:327 223:282
End of report
