Routing Table Report 08:00 +10GMT Fri 20 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 386360
Prefixes after maximum aggregation: 166977
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 191036
Total ASes present in the Internet Routing Table: 37859
Prefixes per ASN: 10.21
Origin-only ASes present in the Internet Routing Table: 32634
Origin ASes announcing only one prefix: 15537
Transit ASes present in the Internet Routing Table: 5225
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2887
Unregistered ASNs in the Routing Table: 1150
Number of 32-bit ASNs allocated by the RIRs: 2194
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4520
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 124
Number of addresses announced to Internet: 2527858432
Equivalent to 150 /8s, 172 /16s and 15 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
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: 161871
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92011
Total APNIC prefixes after maximum aggregation: 30116
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 89313
Unique aggregates announced from the APNIC address blocks: 39021
APNIC Region origin ASes present in the Internet Routing Table: 4587
APNIC Prefixes per ASN: 19.47
APNIC Region origin ASes announcing only one prefix: 1259
APNIC Region transit ASes present in the Internet Routing Table: 705
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 634826240
Equivalent to 37 /8s, 214 /16s and 174 /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: 146394
Total ARIN prefixes after maximum aggregation: 74719
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118596
Unique aggregates announced from the ARIN address blocks: 49055
ARIN Region origin ASes present in the Internet Routing Table: 14793
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5672
ARIN Region transit ASes present in the Internet Routing Table: 1497
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804831488
Equivalent to 47 /8s, 248 /16s and 193 /24s
Percentage of available ARIN address space announced: 64.0
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: 97350
Total RIPE prefixes after maximum aggregation: 51999
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89286
Unique aggregates announced from the RIPE address blocks: 55664
RIPE Region origin ASes present in the Internet Routing Table: 16247
RIPE Prefixes per ASN: 5.50
RIPE Region origin ASes announcing only one prefix: 7993
RIPE Region transit ASes present in the Internet Routing Table: 2563
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 497678848
Equivalent to 29 /8s, 169 /16s and 250 /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: 36676
Total LACNIC prefixes after maximum aggregation: 7986
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 36471
Unique aggregates announced from the LACNIC address blocks: 19293
LACNIC Region origin ASes present in the Internet Routing Table: 1557
LACNIC Prefixes per ASN: 23.42
LACNIC Region origin ASes announcing only one prefix: 451
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95437312
Equivalent to 5 /8s, 176 /16s and 66 /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: 8699
Total AfriNIC prefixes after maximum aggregation: 2086
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6699
Unique aggregates announced from the AfriNIC address blocks: 2089
AfriNIC Region origin ASes present in the Internet Routing Table: 508
AfriNIC Prefixes per ASN: 13.19
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 30812928
Equivalent to 1 /8s, 214 /16s and 43 /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 1910 11097 663 Korea Telecom (KIX)
7545 1635 303 86 TPG Internet Pty Ltd
17974 1635 503 36 PT Telekomunikasi Indonesia
4755 1510 385 156 TATA Communications formerly
9829 1163 989 28 National Internet Backbone
9583 1119 81 490 Sify Limited
7552 1117 1062 11 Vietel Corporation
24560 1011 384 167 Bharti Airtel Ltd., Telemedia
4808 982 1947 277 CNCGROUP IP network China169
18101 946 131 155 Reliance Infocom Ltd Internet
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3449 3808 203 BellSouth.net Inc.
7029 3255 1042 212 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 680 122 PaeTec Communications, Inc.
20115 1618 1552 618 Charter Communications
4323 1607 1078 383 tw telecom holdings, inc.
22773 1517 2909 108 Cox Communications Inc.
30036 1493 266 701 Mediacom Communications Corp
19262 1385 4683 400 Verizon Online LLC
7018 1304 7042 857 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1491 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
6830 644 1928 413 UPC Broadband
34984 637 188 171 BILISIM TELEKOM
31148 613 35 9 FreeNet ISP
8551 573 360 81 Bezeq International
20940 571 184 455 Akamai Technologies European
12479 552 639 55 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1723 321 167 Types of queries are: POCs, o
28573 1609 1068 77 Types of queries are: POCs, o
8151 1318 2980 334 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
27947 617 73 96 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
3816 553 238 92 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
11172 533 101 107 Alestra, S. de R.L. de C.V.
6503 528 434 69 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1030 958 13 TEDATA
24863 794 146 33 LINKdotNET AS number
6713 487 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 239 32 6 Sudatel Internet Exchange Aut
33776 225 12 20 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 189 80 8 RAYA Telecom - Egypt
16637 157 664 85 MTN Network Solutions
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3449 3808 203 BellSouth.net Inc.
7029 3255 1042 212 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1910 11097 663 Korea Telecom (KIX)
1785 1867 680 122 PaeTec Communications, Inc.
10620 1723 321 167 Types of queries are: POCs, o
7545 1635 303 86 TPG Internet Pty Ltd
17974 1635 503 36 PT Telekomunikasi Indonesia
20115 1618 1552 618 Charter Communications
28573 1609 1068 77 Types of queries are: POCs, o
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3255 3043 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1745 PaeTec Communications, Inc.
17974 1635 1599 PT Telekomunikasi Indonesia
10620 1723 1556 Types of queries are: POCs, o
7545 1635 1549 TPG Internet Pty Ltd
28573 1609 1532 Types of queries are: POCs, o
8402 1491 1476 Corbina telecom
22773 1517 1409 Cox Communications Inc.
4755 1510 1354 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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
37.60.152.0/21 29608 wan2many
37.61.0.0/17 28787 Bakinternet ISP, Azerbaijan
Complete listing at http://thyme.rand.apnic.net/london/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 /12:233
/13:457 /14:815 /15:1459 /16:12075 /17:6137 /18:10165
/19:20315 /20:28008 /21:28757 /22:38676 /23:36365 /24:202209
/25:11 /26:21 /27:20 /28:153 /29:135 /30:67
/31:0 /32:143
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2860 3255 Windstream Communications Inc
6389 2119 3449 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1618 1723 Types of queries are: POCs, o
8402 1470 1491 Corbina telecom
30036 1450 1493 Mediacom Communications Corp
11492 1116 1153 CABLE ONE, INC.
1785 1066 1867 PaeTec Communications, Inc.
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
7011 1031 1148 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:499 2:413 4:15 5:1 6:3 8:378
12:1949 13:1 14:569 15:11 16:3 17:6
20:9 23:111 24:1707 27:1172 31:865 32:60
33:2 34:2 36:8 37:102 38:788 40:114
41:2903 42:87 44:3 46:1228 47:3 49:319
50:517 52:13 54:1 55:6 56:2 57:37
58:895 59:482 60:342 61:1079 62:938 63:1959
64:4080 65:2288 66:4390 67:2020 68:1154 69:3138
70:918 71:428 72:1799 74:2647 75:445 76:319
77:960 78:887 79:497 80:1190 81:867 82:564
83:532 84:585 85:1149 86:748 87:910 88:351
89:1571 90:258 91:4428 92:531 93:1525 94:1360
95:1055 96:419 97:299 98:782 99:38 100:18
101:134 103:641 106:9 107:132 108:124 109:1464
110:686 111:820 112:417 113:524 114:602 115:733
116:847 117:709 118:900 119:1232 120:354 121:647
122:1586 123:1057 124:1303 125:1301 128:477 129:184
130:206 131:587 132:153 133:21 134:221 135:59
136:211 137:148 138:288 139:144 140:465 141:258
142:361 143:397 144:506 145:68 146:480 147:225
148:620 149:279 150:159 151:193 152:444 153:170
154:6 155:413 156:207 157:336 158:154 159:437
160:319 161:204 162:336 163:178 164:526 165:393
166:560 167:457 168:846 169:146 170:830 171:105
172:4 173:1783 174:581 175:416 176:354 177:465
178:1198 180:1226 181:43 182:680 183:275 184:435
185:1 186:1507 187:840 188:978 189:1168 190:5296
192:5945 193:5465 194:4201 195:3383 196:1264 197:168
198:3575 199:4272 200:5525 201:1691 202:8197 203:8490
204:4257 205:2407 206:2657 207:2733 208:3999 209:3516
210:2670 211:1445 212:1982 213:1813 214:846 215:93
216:4951 217:1472 218:543 219:336 220:1219 221:541
222:297 223:255
End of report
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