The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Wednesday, October 30, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Thu 31 Oct, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 465515
Prefixes after maximum aggregation: 187908
Deaggregation factor: 2.48
Unique aggregates announced to Internet: 232955
Total ASes present in the Internet Routing Table: 45265
Prefixes per ASN: 10.28
Origin-only ASes present in the Internet Routing Table: 35331
Origin ASes announcing only one prefix: 16299
Transit ASes present in the Internet Routing Table: 5856
Transit-only ASes present in the Internet Routing Table: 151
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 788
Unregistered ASNs in the Routing Table: 206
Number of 32-bit ASNs allocated by the RIRs: 5271
Number of 32-bit ASNs visible in the Routing Table: 4078
Prefixes from 32-bit ASNs in the Routing Table: 12569
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 870
Number of addresses announced to Internet: 2646198016
Equivalent to 157 /8s, 185 /16s and 199 /24s
Percentage of available address space announced: 71.5
Percentage of allocated address space announced: 71.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.1
Total number of prefixes smaller than registry allocations: 161690

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 108960
Total APNIC prefixes after maximum aggregation: 33101
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 111014
Unique aggregates announced from the APNIC address blocks: 47056
APNIC Region origin ASes present in the Internet Routing Table: 4859
APNIC Prefixes per ASN: 22.85
APNIC Region origin ASes announcing only one prefix: 1230
APNIC Region transit ASes present in the Internet Routing Table: 814
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 719
Number of APNIC addresses announced to Internet: 723357696
Equivalent to 43 /8s, 29 /16s and 144 /24s
Percentage of available APNIC address space announced: 84.5

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
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, 150/8, 153/8,
163/8, 171/8, 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: 161818
Total ARIN prefixes after maximum aggregation: 81223
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 162857
Unique aggregates announced from the ARIN address blocks: 75642
ARIN Region origin ASes present in the Internet Routing Table: 15900
ARIN Prefixes per ASN: 10.24
ARIN Region origin ASes announcing only one prefix: 6021
ARIN Region transit ASes present in the Internet Routing Table: 1633
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 32
Number of ARIN addresses announced to Internet: 1072778496
Equivalent to 63 /8s, 241 /16s and 77 /24s
Percentage of available ARIN address space announced: 56.8

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, 62464-63487, 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, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 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: 117709
Total RIPE prefixes after maximum aggregation: 61015
RIPE Deaggregation factor: 1.93
Prefixes being announced from the RIPE address blocks: 121337
Unique aggregates announced from the RIPE address blocks: 78770
RIPE Region origin ASes present in the Internet Routing Table: 17484
RIPE Prefixes per ASN: 6.94
RIPE Region origin ASes announcing only one prefix: 8297
RIPE Region transit ASes present in the Internet Routing Table: 2807
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2443
Number of RIPE addresses announced to Internet: 656527616
Equivalent to 39 /8s, 33 /16s and 209 /24s
Percentage of available RIPE address space announced: 95.4

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
59392-61439, 61952-62463, 196608-200191
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,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52228
Total LACNIC prefixes after maximum aggregation: 9869
LACNIC Deaggregation factor: 5.29
Prefixes being announced from the LACNIC address blocks: 57201
Unique aggregates announced from the LACNIC address blocks: 26714
LACNIC Region origin ASes present in the Internet Routing Table: 2036
LACNIC Prefixes per ASN: 28.09
LACNIC Region origin ASes announcing only one prefix: 555
LACNIC Region transit ASes present in the Internet Routing Table: 392
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 27
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 878
Number of LACNIC addresses announced to Internet: 142194688
Equivalent to 8 /8s, 121 /16s and 184 /24s
Percentage of available LACNIC address space announced: 84.8

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11584
Total AfriNIC prefixes after maximum aggregation: 2569
AfriNIC Deaggregation factor: 4.51
Prefixes being announced from the AfriNIC address blocks: 12235
Unique aggregates announced from the AfriNIC address blocks: 4041
AfriNIC Region origin ASes present in the Internet Routing Table: 666
AfriNIC Prefixes per ASN: 18.37
AfriNIC Region origin ASes announcing only one prefix: 196
AfriNIC Region transit ASes present in the Internet Routing Table: 133
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6
Number of AfriNIC addresses announced to Internet: 48068352
Equivalent to 2 /8s, 221 /16s and 119 /24s
Percentage of available AfriNIC address space announced: 47.8

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2717 903 89 PT TELEKOMUNIKASI INDONESIA
4766 2138 11550 644 Korea Telecom (KIX)
7545 2100 319 111 TPG Internet Pty Ltd
4755 1786 391 189 TATA Communications formerly
9829 1552 1242 46 BSNL National Internet Backbo
4808 1297 2193 367 CNCGROUP IP network: China169
9498 1212 310 76 BHARTI Airtel Ltd.
9583 1187 90 513 Sify Limited
7552 1157 1080 13 Vietel Corporation
24560 1092 380 165 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3056 3688 56 BellSouth.net Inc.
22773 2187 2939 138 Cox Communications, Inc.
18566 2055 379 179 MegaPath Corporation
1785 2029 682 126 PaeTec Communications, Inc.
20115 1681 1654 607 Charter Communications
4323 1628 1102 419 Time Warner Telecom
701 1506 11145 783 MCI Communications Services,
30036 1393 314 577 Mediacom Communications Corp
7018 1344 17796 874 AT&T WorldNet Services
6983 1294 756 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1812 544 17 OJSC "Vimpelcom"
34984 1361 244 223 TELLCOM ILETISIM HIZMETLERI A
20940 1095 398 846 Akamai Technologies European
31148 1004 44 21 FreeNet ISP
13188 887 99 49 TOV "Bank-Inform"
8551 758 370 41 Bezeq International
12479 679 798 55 Uni2 Autonomous System
6830 550 2324 421 UPC Distribution Services
35228 540 246 16 Avatar Broadband Limited
35819 531 583 80 Bayanat Al-Oula For Network S

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3470 1782 85 NET Servicos de Comunicao S.A
10620 2636 427 234 TVCABLE BOGOTA
7303 1725 1135 234 Telecom Argentina Stet-France
18881 1524 844 20 Global Village Telecom
8151 1338 2838 410 UniNet S.A. de C.V.
11830 865 364 15 Instituto Costarricense de El
27947 813 93 91 Telconet S.A
6147 793 373 27 Telefonica Del Peru
6503 785 434 61 AVANTEL, S.A.
7738 780 1498 36 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 885 338 30 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 410 956 9 TEDATA
24835 294 144 9 RAYA Telecom - Egypt
3741 258 921 216 The Internet Solution
36992 227 501 29 Etisalat MISR
29571 224 17 12 Ci Telecom Autonomous system
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3470 1782 85 NET Servicos de Comunicao S.A
6389 3056 3688 56 BellSouth.net Inc.
17974 2717 903 89 PT TELEKOMUNIKASI INDONESIA
10620 2636 427 234 TVCABLE BOGOTA
22773 2187 2939 138 Cox Communications, Inc.
4766 2138 11550 644 Korea Telecom (KIX)
7545 2100 319 111 TPG Internet Pty Ltd
18566 2055 379 179 MegaPath Corporation
1785 2029 682 126 PaeTec Communications, Inc.
36998 1854 112 5 Sudanese Mobile Telephone (ZA

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3056 3000 BellSouth.net Inc.
17974 2717 2628 PT TELEKOMUNIKASI INDONESIA
10620 2636 2402 TVCABLE BOGOTA
22773 2187 2049 Cox Communications, Inc.
7545 2100 1989 TPG Internet Pty Ltd
1785 2029 1903 PaeTec Communications, Inc.
18566 2055 1876 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
8402 1812 1795 OJSC "Vimpelcom"
4755 1786 1597 TATA Communications formerly

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
62734 UNALLOCATED 8.31.128.0/24 3356 Level 3 Communicatio
62773 UNALLOCATED 8.35.180.0/22 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.90.192.0/18 36086 Broad Communications Technolo
23.91.0.0/19 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 40676 Psychz Networks
23.91.112.0/21 32475 MidPhase Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c
23.91.160.0/22 36493 3757277 Canada Inc. (oa 295.c
23.91.164.0/22 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:30 /11:92 /12:254
/13:474 /14:911 /15:1592 /16:12720 /17:6604 /18:11107
/19:22819 /20:32532 /21:35244 /22:49666 /23:43167 /24:248245
/25:3 /26:5 /27:8 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2008 2055 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1709 3056 BellSouth.net Inc.
8402 1512 1812 OJSC "Vimpelcom"
22773 1454 2187 Cox Communications, Inc.
30036 1240 1393 Mediacom Communications Corp
11492 1200 1241 Cable One
1785 1080 2029 PaeTec Communications, Inc.
6983 1034 1294 ITC^Deltacom
22561 965 1241 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:867 2:838 3:1 4:17 5:1003 6:21
8:611 12:1892 13:3 14:886 15:11 16:3
17:17 18:19 20:21 23:497 24:1741 27:1605
31:1485 32:45 33:2 34:5 36:80 37:1861
38:919 39:4 40:178 41:3190 42:225 44:14
46:2017 47:9 49:681 50:823 52:12 54:42
55:3 56:2 57:26 58:1080 59:572 60:373
61:1466 62:1206 63:1978 64:4557 65:2336 66:4132
67:2097 68:1105 69:3268 70:870 71:479 72:2007
74:2551 75:327 76:295 77:1164 78:1067 79:644
80:1294 81:1018 82:660 83:632 84:582 85:1252
86:421 87:1007 88:564 89:1598 90:155 91:5660
92:615 93:1593 94:1999 95:1594 96:508 97:344
98:1042 99:39 100:30 101:614 103:3480 105:525
106:131 107:212 108:531 109:1915 110:956 111:1099
112:589 113:807 114:727 115:1046 116:1005 117:831
118:1173 119:1276 120:367 121:747 122:1827 123:1253
124:1311 125:1433 128:643 129:229 130:328 131:662
132:348 133:158 134:555 135:67 136:279 137:268
138:349 139:177 140:193 141:334 142:540 143:424
144:498 145:87 146:519 147:399 148:772 149:361
150:157 151:586 152:411 153:204 154:51 155:490
156:286 157:413 158:282 159:683 160:357 161:451
162:812 163:227 164:631 165:572 166:257 167:626
168:1045 169:128 170:1128 171:181 172:25 173:1611
174:667 175:511 176:1265 177:2371 178:1932 179:195
180:1576 181:785 182:1333 183:457 184:661 185:963
186:2660 187:1459 188:1832 189:1267 190:7248 192:7068
193:5404 194:4032 195:3320 196:1318 197:1019 198:4724
199:5485 200:6064 201:2526 202:8899 203:8913 204:4519
205:2637 206:2842 207:2862 208:4016 209:3645 210:2953
211:1559 212:2120 213:1963 214:900 215:92 216:5383
217:1674 218:624 219:314 220:1275 221:566 222:326
223:505

End of report
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