Routing Table Report 00:00 GMT Wed 18 Jan, 2012
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: 395484
Prefixes after maximum aggregation: 170184
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191304
Total ASes present in the Internet Routing Table: 39879
Prefixes per ASN: 9.92
Origin-only ASes present in the Internet Routing Table: 32716
Origin ASes announcing only one prefix: 15554
Transit ASes present in the Internet Routing Table: 5297
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6703
Unregistered ASNs in the Routing Table: 1089
Number of 32-bit ASNs allocated by the RIRs: 2192
Number of 32-bit ASNs visible in the Routing Table: 1866
Prefixes from 32-bit ASNs in the Routing Table: 4501
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2510586342
Equivalent to 149 /8s, 164 /16s and 129 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 165913
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 95231
Total APNIC prefixes after maximum aggregation: 30409
APNIC Deaggregation factor: 3.13
Prefixes being announced from the APNIC address blocks: 91641
Unique aggregates announced from the APNIC address blocks: 38996
APNIC Region origin ASes present in the Internet Routing Table: 4627
APNIC Prefixes per ASN: 19.81
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: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 133
Number of APNIC addresses announced to Internet: 635013632
Equivalent to 37 /8s, 217 /16s and 138 /24s
Percentage of available APNIC address space announced: 80.5
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: 150258
Total ARIN prefixes after maximum aggregation: 77344
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 122004
Unique aggregates announced from the ARIN address blocks: 49141
ARIN Region origin ASes present in the Internet Routing Table: 14872
ARIN Prefixes per ASN: 8.20
ARIN Region origin ASes announcing only one prefix: 5675
ARIN Region transit ASes present in the Internet Routing Table: 1533
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: 14
Number of ARIN addresses announced to Internet: 804438536
Equivalent to 47 /8s, 242 /16s and 194 /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: 98875
Total RIPE prefixes after maximum aggregation: 52159
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 89969
Unique aggregates announced from the RIPE address blocks: 55704
RIPE Region origin ASes present in the Internet Routing Table: 16265
RIPE Prefixes per ASN: 5.53
RIPE Region origin ASes announcing only one prefix: 7996
RIPE Region transit ASes present in the Internet Routing Table: 2554
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1296
Number of RIPE addresses announced to Internet: 497757836
Equivalent to 29 /8s, 171 /16s and 46 /24s
Percentage of available RIPE address space announced: 80.2
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: 37828
Total LACNIC prefixes after maximum aggregation: 8105
LACNIC Deaggregation factor: 4.67
Prefixes being announced from the LACNIC address blocks: 37348
Unique aggregates announced from the LACNIC address blocks: 19281
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 23.90
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 285
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 419
Number of LACNIC addresses announced to Internet: 95451656
Equivalent to 5 /8s, 176 /16s and 122 /24s
Percentage of available LACNIC address space announced: 63.2
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: 8559
Total AfriNIC prefixes after maximum aggregation: 2095
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6564
Unique aggregates announced from the AfriNIC address blocks: 2092
AfriNIC Region origin ASes present in the Internet Routing Table: 510
AfriNIC Prefixes per ASN: 12.87
AfriNIC Region origin ASes announcing only one prefix: 164
AfriNIC Region transit ASes present in the Internet Routing Table: 120
Average AfriNIC Region AS path length visible: 4.3
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: 30836480
Equivalent to 1 /8s, 214 /16s and 135 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1907 11097 661 Korea Telecom (KIX)
17974 1718 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4755 1529 387 161 Videsh Sanchar Nigam Ltd. Aut
7552 1425 1064 7 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1119 81 490 Sify Limited
24560 1011 384 167 Bharti Airtel Ltd.
18101 944 130 154 Reliance Infocom Ltd Internet
17488 943 161 225 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 3457 3807 206 bellsouth.net, inc.
7029 3248 1033 214 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1867 680 124 AppliedTheory Corporation
20115 1617 1552 619 Charter Communications
4323 1599 1046 379 Time Warner Telecom
22773 1517 2909 108 Cox Communications, Inc.
30036 1482 265 698 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1303 7041 853 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 1670 480 15 Corbina telecom
286 1102 806 198 KPNQwest Backbone AS
15557 1096 2161 64 LDCOM NETWORKS
2118 927 99 14 EUnet/RELCOM Autonomous Syste
6830 645 1928 413 UPC Distribution Services
34984 637 188 171 Tellcom Iletisim Hizmetleri
31148 595 35 9 FreeNet ISP
20940 574 185 457 Akamai Technologies European
8551 570 360 81 Bezeq International
12479 553 637 53 Uni2 Autonomous System
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 1719 320 166 TVCABLE BOGOTA
28573 1594 1068 77 Types of queries are: POCs, o
8151 1498 2980 338 Uninet S.A. de C.V.
7303 1254 756 179 Telecom Argentina Stet-France
27947 636 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
3816 551 238 92 COLOMBIA TELECOMUNICACIONES S
6503 551 434 69 AVANTEL, S.A.
7738 551 1050 31 Telecomunicacoes da Bahia S.A
10481 547 429 25 Prima 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 1031 958 13 TEDATA
24863 796 146 36 LINKdotNET AS number
6713 381 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 239 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
33776 201 12 14 Starcomms Nigeria Limited
12258 196 28 61 YEBO-AS
24835 189 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
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 3457 3807 206 bellsouth.net, inc.
7029 3248 1033 214 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1907 11097 661 Korea Telecom (KIX)
1785 1867 680 124 AppliedTheory Corporation
10620 1719 320 166 TVCABLE BOGOTA
17974 1718 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1670 480 15 Corbina telecom
7545 1623 303 86 TPG Internet Pty Ltd
20115 1617 1552 619 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 3248 3034 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1867 1743 AppliedTheory Corporation
17974 1718 1682 PT TELEKOMUNIKASI INDONESIA
8402 1670 1655 Corbina telecom
10620 1719 1553 TVCABLE BOGOTA
7545 1623 1537 TPG Internet Pty Ltd
28573 1594 1517 Types of queries are: POCs, o
7552 1425 1418 Vietel Corporation
22773 1517 1409 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 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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.58.0.0/20 5610 CZECH TELECOM AS - IOL
37.58.32.0/21 24923 South-East Transtelecom Joint
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 /8:19 /9:12 /10:27 /11:80 /12:232
/13:458 /14:821 /15:1491 /16:12264 /17:6410 /18:10566
/19:20750 /20:29208 /21:29096 /22:39318 /23:36960 /24:206025
/25:66 /26:82 /27:109 /28:296 /29:113 /30:539
/31:52 /32:490
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2859 3248 Windstream Communications Inc
6389 2118 3457 bellsouth.net, inc.
18566 2042 2093 Covad Communications
8402 1649 1670 Corbina telecom
10620 1614 1719 TVCABLE BOGOTA
30036 1439 1482 Mediacom Communications Corp
11492 1116 1153 Cable One
1785 1067 1867 AppliedTheory Corporation
15557 1046 1096 LDCOM NETWORKS
7011 1039 1156 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:509 2:470 4:19 5:1 6:3 8:379
12:1950 13:1 14:587 15:11 16:3 17:6
20:9 23:108 24:1717 27:1179 31:861 32:124
33:2 34:2 36:8 37:95 38:798 39:1
40:114 41:2852 42:88 43:1 44:3 46:1229
47:2 49:320 50:516 52:13 55:6 56:2
57:51 58:950 59:519 60:346 61:1254 62:962
63:1981 64:4126 65:2306 66:4407 67:2035 68:1341
69:3256 70:967 71:414 72:1833 73:1 74:2701
75:459 76:330 77:966 78:901 79:514 80:1193
81:866 82:576 83:534 84:590 85:1158 86:751
87:918 88:367 89:1592 90:258 91:4427 92:533
93:1547 94:1359 95:1090 96:398 97:298 98:798
99:38 100:18 101:257 103:659 106:10 107:133
108:130 109:1447 110:707 111:841 112:431 113:542
114:626 115:824 116:897 117:744 118:922 119:1271
120:358 121:810 122:1626 123:1055 124:1370 125:1355
128:522 129:195 130:206 131:589 132:162 133:21
134:234 135:59 136:213 137:151 138:288 139:157
140:491 141:260 142:380 143:399 144:509 145:68
146:486 147:234 148:687 149:279 150:166 151:193
152:446 153:170 154:7 155:410 156:210 157:368
158:155 159:511 160:320 161:221 162:337 163:188
164:529 165:412 166:563 167:456 168:853 169:147
170:828 171:105 172:4 173:1796 174:592 175:443
176:354 177:454 178:1186 180:1248 181:43 182:710
183:271 184:435 185:1 186:1503 187:829 188:980
189:1158 190:5331 192:6021 193:5496 194:3998 195:3370
196:1297 197:167 198:3637 199:4323 200:5644 201:1697
202:8503 203:8618 204:4356 205:2431 206:2768 207:2809
208:4037 209:3579 210:2775 211:1488 212:2022 213:1829
214:843 215:94 216:4972 217:1484 218:563 219:339
220:1254 221:559 222:326 223:270
End of report
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